TY  - JOUR
AU  - Fotirić-Aksić, Milica
AU  - Cerović, Radosav
AU  - Hjeltnes, Stein Harald
AU  - Meland, Mekjell
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5024
AB  - This study evaluated the effective pollination period (EPP) in four European plum (Prunus domestica L.) cultivars ('Mallard', 'Edda', 'Jubileum', and 'Reeves') during two years (2018-2019) under the environmental conditions in western Norway. The pollination of plum cultivars was carried out one, three, five, seven, and nine days after anthesis (DAA) with a pollen mix of two compatible cultivars ('Victoria' and 'Opal'). Initial, middle-season, and final fruit set was recorded after one month and two months after pollination and just before the harvest, respectively. On average from both years cultivar 'Jubileum' had the highest fruit set when pollinated one, three, five, seven, and nine DAA (33.23%, 30.83%, 8.47%, 3.08%, and 1.15%, respectively), which was more than two folds higher fruit set than in the other studied cultivars. Cultivar 'Jubileum' showed significantly reduced fruit set between pollination on five and nine DAA, while cultivars 'Mallard', 'Edda', and 'Reeves' had markedly reduced fruit set if pollinated three to five DAA, implying that the EPP in 'Jubileum' was five days while in the rest it was three days. Variation of weather conditions during the flowering period in both years did not have a major effect on the receptivity of stigmas in the studied plum cultivars, which means that the existing differences in the length of EPP is maternal-genotype dependent.
PB  - MDPI
T2  - Horticulturae
T1  - The Effective Pollination Period of European Plum (Prunus domestica L.) Cultivars in Western Norway
IS  - 1
SP  - 55
VL  - 8
DO  - 10.3390/horticulturae8010055
ER  - 

@article{
author = "Fotirić-Aksić, Milica and Cerović, Radosav and Hjeltnes, Stein Harald and Meland, Mekjell",
year = "2022",
abstract = "This study evaluated the effective pollination period (EPP) in four European plum (Prunus domestica L.) cultivars ('Mallard', 'Edda', 'Jubileum', and 'Reeves') during two years (2018-2019) under the environmental conditions in western Norway. The pollination of plum cultivars was carried out one, three, five, seven, and nine days after anthesis (DAA) with a pollen mix of two compatible cultivars ('Victoria' and 'Opal'). Initial, middle-season, and final fruit set was recorded after one month and two months after pollination and just before the harvest, respectively. On average from both years cultivar 'Jubileum' had the highest fruit set when pollinated one, three, five, seven, and nine DAA (33.23%, 30.83%, 8.47%, 3.08%, and 1.15%, respectively), which was more than two folds higher fruit set than in the other studied cultivars. Cultivar 'Jubileum' showed significantly reduced fruit set between pollination on five and nine DAA, while cultivars 'Mallard', 'Edda', and 'Reeves' had markedly reduced fruit set if pollinated three to five DAA, implying that the EPP in 'Jubileum' was five days while in the rest it was three days. Variation of weather conditions during the flowering period in both years did not have a major effect on the receptivity of stigmas in the studied plum cultivars, which means that the existing differences in the length of EPP is maternal-genotype dependent.",
publisher = "MDPI",
journal = "Horticulturae",
title = "The Effective Pollination Period of European Plum (Prunus domestica L.) Cultivars in Western Norway",
number = "1",
pages = "55",
volume = "8",
doi = "10.3390/horticulturae8010055"
}

Fotirić-Aksić, M., Cerović, R., Hjeltnes, S. H.,& Meland, M.. (2022). The Effective Pollination Period of European Plum (Prunus domestica L.) Cultivars in Western Norway. in Horticulturae
MDPI., 8(1), 55.
https://doi.org/10.3390/horticulturae8010055

Fotirić-Aksić M, Cerović R, Hjeltnes SH, Meland M. The Effective Pollination Period of European Plum (Prunus domestica L.) Cultivars in Western Norway. in Horticulturae. 2022;8(1):55.
doi:10.3390/horticulturae8010055 .

Fotirić-Aksić, Milica, Cerović, Radosav, Hjeltnes, Stein Harald, Meland, Mekjell, "The Effective Pollination Period of European Plum (Prunus domestica L.) Cultivars in Western Norway" in Horticulturae, 8, no. 1 (2022):55,
https://doi.org/10.3390/horticulturae8010055 . .

TY  - JOUR
AU  - Fotirić-Aksić, Milica
AU  - Cerović, Radosav
AU  - Radosevic, R.
AU  - Oparnica, C.
AU  - Meland, M.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4806
AB  - The objective of this study was to determine morphological and anatomical leaf characteristics and stomatal traits of three European (Pyrus communis L.) cultivars, three Asian [Pyrus pyrifolia (Burm. f.) Nakai] pear cultivars together with one interspecies hybrid (P. pyrifolia x P. communis 'Bartlett') and link them with the resistance to pathogens. Pear trees were grown under the standard practice without irrigation. Fully developed leaves were picked from the middle part of the extension shoots at the beginning of the July. Leaf traits were measured on leaves picked the same day. Anatomy of leaves was determined under light microscopy (LM) while scanning electron microscopy (SEM) was used for the examination of the stomata cells. Asian pear cultivars ('Kousui', 'Nijisseiki' and 'Niitaka') had much higher leaf parameters (width, length, stem length and leaf area) than the European cultivars ('Conference', 'Williams Bartlett', 'Abbate Fetel') and interspecies hybrid ('Kieffer Seedling'). Midrib parameters (length and width) were the highest in 'Kosui' and 'Nijisseiki'. Leaves of 'Kieffer Seedling' and 'Abbate Fetel' were the thickest, mainly due to increased palisade and spongy parenchyma thickness. The leaf stomata density significantly varied among the pear cultivars, ranging from 89.53 stomata mm(-2) ('Nijisseiki') up to 134.07 stomata mm(-2) ('Housui'). SEM proved that Asian pear cultivars and 'Kieffer Seedling' shared 'paracytic' stomata type, while European pear cultivars had 'anomocytic' stomata type. Cluster analysis distinguished pear cultivars into two distinct groups, where European cultivars formed first sub-cluster and Asian together with 'Kieffer Seedling' second subcluster. Midrib traits and stomata type made a clear separation between the clusters. These results might suggest that thickness of midrib could be a huge barrier for Psylla sp. probing in Asian pears, thus representing one of the key factors in the resistance of these cultivars.
T2  - XIII International Pear Symposium
T1  - Morphological and anatomical leaf characteristics of some European and Asian pear cultivars
EP  - 70
SP  - 63
VL  - 1303
DO  - 10.17660/ActaHortic.2021.1303.10
ER  - 

@article{
author = "Fotirić-Aksić, Milica and Cerović, Radosav and Radosevic, R. and Oparnica, C. and Meland, M.",
year = "2021",
abstract = "The objective of this study was to determine morphological and anatomical leaf characteristics and stomatal traits of three European (Pyrus communis L.) cultivars, three Asian [Pyrus pyrifolia (Burm. f.) Nakai] pear cultivars together with one interspecies hybrid (P. pyrifolia x P. communis 'Bartlett') and link them with the resistance to pathogens. Pear trees were grown under the standard practice without irrigation. Fully developed leaves were picked from the middle part of the extension shoots at the beginning of the July. Leaf traits were measured on leaves picked the same day. Anatomy of leaves was determined under light microscopy (LM) while scanning electron microscopy (SEM) was used for the examination of the stomata cells. Asian pear cultivars ('Kousui', 'Nijisseiki' and 'Niitaka') had much higher leaf parameters (width, length, stem length and leaf area) than the European cultivars ('Conference', 'Williams Bartlett', 'Abbate Fetel') and interspecies hybrid ('Kieffer Seedling'). Midrib parameters (length and width) were the highest in 'Kosui' and 'Nijisseiki'. Leaves of 'Kieffer Seedling' and 'Abbate Fetel' were the thickest, mainly due to increased palisade and spongy parenchyma thickness. The leaf stomata density significantly varied among the pear cultivars, ranging from 89.53 stomata mm(-2) ('Nijisseiki') up to 134.07 stomata mm(-2) ('Housui'). SEM proved that Asian pear cultivars and 'Kieffer Seedling' shared 'paracytic' stomata type, while European pear cultivars had 'anomocytic' stomata type. Cluster analysis distinguished pear cultivars into two distinct groups, where European cultivars formed first sub-cluster and Asian together with 'Kieffer Seedling' second subcluster. Midrib traits and stomata type made a clear separation between the clusters. These results might suggest that thickness of midrib could be a huge barrier for Psylla sp. probing in Asian pears, thus representing one of the key factors in the resistance of these cultivars.",
journal = "XIII International Pear Symposium",
title = "Morphological and anatomical leaf characteristics of some European and Asian pear cultivars",
pages = "70-63",
volume = "1303",
doi = "10.17660/ActaHortic.2021.1303.10"
}

Fotirić-Aksić, M., Cerović, R., Radosevic, R., Oparnica, C.,& Meland, M.. (2021). Morphological and anatomical leaf characteristics of some European and Asian pear cultivars. in XIII International Pear Symposium, 1303, 63-70.
https://doi.org/10.17660/ActaHortic.2021.1303.10

Fotirić-Aksić M, Cerović R, Radosevic R, Oparnica C, Meland M. Morphological and anatomical leaf characteristics of some European and Asian pear cultivars. in XIII International Pear Symposium. 2021;1303:63-70.
doi:10.17660/ActaHortic.2021.1303.10 .

Fotirić-Aksić, Milica, Cerović, Radosav, Radosevic, R., Oparnica, C., Meland, M., "Morphological and anatomical leaf characteristics of some European and Asian pear cultivars" in XIII International Pear Symposium, 1303 (2021):63-70,
https://doi.org/10.17660/ActaHortic.2021.1303.10 . .

TY  - JOUR
AU  - Meland, Mekjell
AU  - Fotirić-Aksić, Milica
AU  - Cerović, Radosav
AU  - Froynes, Oddmund
AU  - Kaiser, Clive
AU  - Maas, Frank
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4956
AB  - Norwegian pear (Pyrus communis L.) production has been in decline for the last 25 years. This was mainly because of old cultivars, with low yields and poor consumer appeal, could not compete against strong competition from imported pears, mainly 'Conference'. Since 1994, the Norwegian breeding company, Graminor Ltd., has released several new pear cultivars, which have been evaluated at NIBIO Ullensvang, western Norway. The first trial was planted in 1999 and included the Graminor Ltd. cultivars: 'Ingeborg', 'Fritjof' and 'Anna', which were bred by the Norwegian University of Life Sciences. In 2002, a second trial was planted including Graminor Ltd. cultivars: 'Kristina', 'Ingrid' and 'Celina' and these were compared against a control, 'Clara Frijs'. All scion cultivars were grafted on the semi-vigorous rootstock `Brokmal' and grown for 8 years. In both trials, full bloom (similar to 80% of flowers open) took place between 7 May +/- 3 days and 15 May +/- 4 days. Flowering was however, completed within a 7-day period in any one year, ensuring adequate overlap in flowering time between all cultivars. Over the final 4-year period all cultivars were evaluated, 'Anna', 'Fritjof', 'Kristina' and 'Ingeborg' all had moderate cumulative yields (64.7, 66.2, 36.1, and 30.4 kg.tree(-1), respectively). Fruit weight (212 to 183g) and quality of all these cultivars was acceptable (11.2%   lt = TSS   lt = 11.8%; 0.16%   lt = acidity   lt = 0.22%). However, 'Fritjof' had many misshapen fruit and exhibited pre-harvest shriveling in several instances making it unacceptable for commercial plantings. 'Clara Frijs' and 'Celina' cumulative yields were low (12.5 and 21.2 kg per tree, respectively) and fruit were also small (172 to 161 g, respectively). However, due to the attractive cerise-blush 'Celina' (trademarked QTee (R)) pear is now widely planted in Norway and abroad and grafted on Quince rootstocks.
T2  - Journal of the American Pomological Society
T1  - Evaluation of New Promising Norwegian Pear Cultivars in a Nordic Climate
EP  - 156
IS  - 3
SP  - 149
VL  - 75
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4956
ER  - 

@article{
author = "Meland, Mekjell and Fotirić-Aksić, Milica and Cerović, Radosav and Froynes, Oddmund and Kaiser, Clive and Maas, Frank",
year = "2021",
abstract = "Norwegian pear (Pyrus communis L.) production has been in decline for the last 25 years. This was mainly because of old cultivars, with low yields and poor consumer appeal, could not compete against strong competition from imported pears, mainly 'Conference'. Since 1994, the Norwegian breeding company, Graminor Ltd., has released several new pear cultivars, which have been evaluated at NIBIO Ullensvang, western Norway. The first trial was planted in 1999 and included the Graminor Ltd. cultivars: 'Ingeborg', 'Fritjof' and 'Anna', which were bred by the Norwegian University of Life Sciences. In 2002, a second trial was planted including Graminor Ltd. cultivars: 'Kristina', 'Ingrid' and 'Celina' and these were compared against a control, 'Clara Frijs'. All scion cultivars were grafted on the semi-vigorous rootstock `Brokmal' and grown for 8 years. In both trials, full bloom (similar to 80% of flowers open) took place between 7 May +/- 3 days and 15 May +/- 4 days. Flowering was however, completed within a 7-day period in any one year, ensuring adequate overlap in flowering time between all cultivars. Over the final 4-year period all cultivars were evaluated, 'Anna', 'Fritjof', 'Kristina' and 'Ingeborg' all had moderate cumulative yields (64.7, 66.2, 36.1, and 30.4 kg.tree(-1), respectively). Fruit weight (212 to 183g) and quality of all these cultivars was acceptable (11.2%   lt = TSS   lt = 11.8%; 0.16%   lt = acidity   lt = 0.22%). However, 'Fritjof' had many misshapen fruit and exhibited pre-harvest shriveling in several instances making it unacceptable for commercial plantings. 'Clara Frijs' and 'Celina' cumulative yields were low (12.5 and 21.2 kg per tree, respectively) and fruit were also small (172 to 161 g, respectively). However, due to the attractive cerise-blush 'Celina' (trademarked QTee (R)) pear is now widely planted in Norway and abroad and grafted on Quince rootstocks.",
journal = "Journal of the American Pomological Society",
title = "Evaluation of New Promising Norwegian Pear Cultivars in a Nordic Climate",
pages = "156-149",
number = "3",
volume = "75",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4956"
}

Meland, M., Fotirić-Aksić, M., Cerović, R., Froynes, O., Kaiser, C.,& Maas, F.. (2021). Evaluation of New Promising Norwegian Pear Cultivars in a Nordic Climate. in Journal of the American Pomological Society, 75(3), 149-156.
https://hdl.handle.net/21.15107/rcub_technorep_4956

Meland M, Fotirić-Aksić M, Cerović R, Froynes O, Kaiser C, Maas F. Evaluation of New Promising Norwegian Pear Cultivars in a Nordic Climate. in Journal of the American Pomological Society. 2021;75(3):149-156.
https://hdl.handle.net/21.15107/rcub_technorep_4956 .

Meland, Mekjell, Fotirić-Aksić, Milica, Cerović, Radosav, Froynes, Oddmund, Kaiser, Clive, Maas, Frank, "Evaluation of New Promising Norwegian Pear Cultivars in a Nordic Climate" in Journal of the American Pomological Society, 75, no. 3 (2021):149-156,
https://hdl.handle.net/21.15107/rcub_technorep_4956 .

TY  - JOUR
AU  - Cerović, Radosav
AU  - Fotirić-Aksić, Milica
AU  - Đorđevic, Milena
AU  - Meland, Mekjell
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4871
AB  - Norwegian plum production is characterized by climatic limitations, different flowering time, deficiently of wholly-adapted cultivars and appropriate pollen donors for cultivars that can be grown in this region. This study evaluated the progamic phase of fertilization and fruit set in four European plum cultivars (Mallard, Edda, Jubileum, and Reeves) after crossing with different pollinizers over two years (2018/2019). Reproductive parameters, in vitro pollen germination, number of pollen tubes in the upper part of the style and locule of the ovary, number of pistils with ovule penetrated by pollen tube, fruit set in all crossing combinations, and fruit set in open pollination of pollen recipient cultivars showed different adaptability of both recipient and donor cultivars to the specific ecological conditions prevailing in Western Norway. The pollinizers Victoria, Opal and C. Lepotica proved to be a very good pollinizers for cultivar Jubileum, while pollinizers R. C. Souffriau and Valor for the cultivar Reeves. Cultivars Opal, R. E. Prolific and Mallard are excellent pollinizers for Edda in conditions of higher temperatures during flowering period and post-flowering period. Cultivar. C. Lepotica proved to be the best pollinizer for Edda in conditions when the temperatures were lower. Cultivars Opal and R. E. Prolific can be considered as good pollinizers for Mallard
T2  - Scientia Horticulturae
T1  - The effects of pollinizers on pollen tube growth and fruit set of European plum (Prunus domestica L.) in a Nordic climate
VL  - 288
DO  - 10.1016/j.scienta.2021.110390
ER  - 

@article{
author = "Cerović, Radosav and Fotirić-Aksić, Milica and Đorđevic, Milena and Meland, Mekjell",
year = "2021",
abstract = "Norwegian plum production is characterized by climatic limitations, different flowering time, deficiently of wholly-adapted cultivars and appropriate pollen donors for cultivars that can be grown in this region. This study evaluated the progamic phase of fertilization and fruit set in four European plum cultivars (Mallard, Edda, Jubileum, and Reeves) after crossing with different pollinizers over two years (2018/2019). Reproductive parameters, in vitro pollen germination, number of pollen tubes in the upper part of the style and locule of the ovary, number of pistils with ovule penetrated by pollen tube, fruit set in all crossing combinations, and fruit set in open pollination of pollen recipient cultivars showed different adaptability of both recipient and donor cultivars to the specific ecological conditions prevailing in Western Norway. The pollinizers Victoria, Opal and C. Lepotica proved to be a very good pollinizers for cultivar Jubileum, while pollinizers R. C. Souffriau and Valor for the cultivar Reeves. Cultivars Opal, R. E. Prolific and Mallard are excellent pollinizers for Edda in conditions of higher temperatures during flowering period and post-flowering period. Cultivar. C. Lepotica proved to be the best pollinizer for Edda in conditions when the temperatures were lower. Cultivars Opal and R. E. Prolific can be considered as good pollinizers for Mallard",
journal = "Scientia Horticulturae",
title = "The effects of pollinizers on pollen tube growth and fruit set of European plum (Prunus domestica L.) in a Nordic climate",
volume = "288",
doi = "10.1016/j.scienta.2021.110390"
}

Cerović, R., Fotirić-Aksić, M., Đorđevic, M.,& Meland, M.. (2021). The effects of pollinizers on pollen tube growth and fruit set of European plum (Prunus domestica L.) in a Nordic climate. in Scientia Horticulturae, 288.
https://doi.org/10.1016/j.scienta.2021.110390

Cerović R, Fotirić-Aksić M, Đorđevic M, Meland M. The effects of pollinizers on pollen tube growth and fruit set of European plum (Prunus domestica L.) in a Nordic climate. in Scientia Horticulturae. 2021;288.
doi:10.1016/j.scienta.2021.110390 .

Cerović, Radosav, Fotirić-Aksić, Milica, Đorđevic, Milena, Meland, Mekjell, "The effects of pollinizers on pollen tube growth and fruit set of European plum (Prunus domestica L.) in a Nordic climate" in Scientia Horticulturae, 288 (2021),
https://doi.org/10.1016/j.scienta.2021.110390 . .

TY  - JOUR
AU  - Cerović, Radosav
AU  - Fotirić-Aksić, Milica
AU  - Meland, Mekjell
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4378
AB  - Norwegian pear production is low due to climatic limitations, a lack of well-adapted cultivars and suitable pollinizers. However, nowadays it is increasing as a result of newly introduced and bred pear cultivars. Since cross pollination is necessary for high yields and good fruit quality, the aim of this investigation was to find the most suitable pollinizers for the pear cultivars "Ingeborg" ("Conference" x "Bonne Louise") and "Celina" ("Coloree de Juillet" x "Williams"). Self-pollination of "Ingeborg" and "Celina", together with "Conference", "Belle Lucrative", "Anna", "Clara Frijs", "Herzogin Elsa", "Kristina" and "Fritjof" as potential pollinizers, were studied in this experiment during the 2017 and 2018 seasons in Norway. The success rate of each pollinizer was tested under field conditions, while the monitoring of pollen tube growth was done using the fluorescence microscopy method. All reproductive parameters (pollen germination, number of pollen tubes in the upper part of the style, pollen tube number in the locule of the ovary, number of fertilized ovules, initial fruit set, and final fruit set) in all crossing combinations were higher in 2018 due to much warmer weather. Based on the flowering overlap and success rate of each individual pollinizer and fruit set, the cultivars "Anna" and "Clara Frijs" can be suggested as pollinizers for the cultivar "Ingeborg", while "Fritjof", "Anna", "Kristina" and "Herzogin Elsa" for the cultivar "Celina". An even distribution of two compatible pollinizers having overlapping flowering times with the main commercial pear cultivar is a general recommendation for commercial pear production.
PB  - MDPI, Basel
T2  - Agronomy-Basel
T1  - Success Rate of Individual Pollinizers for the Pear Cultivars "Ingeborg" and "Celina" in a Nordic Climate
IS  - 7
VL  - 10
DO  - 10.3390/agronomy10070970
ER  - 

@article{
author = "Cerović, Radosav and Fotirić-Aksić, Milica and Meland, Mekjell",
year = "2020",
abstract = "Norwegian pear production is low due to climatic limitations, a lack of well-adapted cultivars and suitable pollinizers. However, nowadays it is increasing as a result of newly introduced and bred pear cultivars. Since cross pollination is necessary for high yields and good fruit quality, the aim of this investigation was to find the most suitable pollinizers for the pear cultivars "Ingeborg" ("Conference" x "Bonne Louise") and "Celina" ("Coloree de Juillet" x "Williams"). Self-pollination of "Ingeborg" and "Celina", together with "Conference", "Belle Lucrative", "Anna", "Clara Frijs", "Herzogin Elsa", "Kristina" and "Fritjof" as potential pollinizers, were studied in this experiment during the 2017 and 2018 seasons in Norway. The success rate of each pollinizer was tested under field conditions, while the monitoring of pollen tube growth was done using the fluorescence microscopy method. All reproductive parameters (pollen germination, number of pollen tubes in the upper part of the style, pollen tube number in the locule of the ovary, number of fertilized ovules, initial fruit set, and final fruit set) in all crossing combinations were higher in 2018 due to much warmer weather. Based on the flowering overlap and success rate of each individual pollinizer and fruit set, the cultivars "Anna" and "Clara Frijs" can be suggested as pollinizers for the cultivar "Ingeborg", while "Fritjof", "Anna", "Kristina" and "Herzogin Elsa" for the cultivar "Celina". An even distribution of two compatible pollinizers having overlapping flowering times with the main commercial pear cultivar is a general recommendation for commercial pear production.",
publisher = "MDPI, Basel",
journal = "Agronomy-Basel",
title = "Success Rate of Individual Pollinizers for the Pear Cultivars "Ingeborg" and "Celina" in a Nordic Climate",
number = "7",
volume = "10",
doi = "10.3390/agronomy10070970"
}

Cerović, R., Fotirić-Aksić, M.,& Meland, M.. (2020). Success Rate of Individual Pollinizers for the Pear Cultivars "Ingeborg" and "Celina" in a Nordic Climate. in Agronomy-Basel
MDPI, Basel., 10(7).
https://doi.org/10.3390/agronomy10070970

Cerović R, Fotirić-Aksić M, Meland M. Success Rate of Individual Pollinizers for the Pear Cultivars "Ingeborg" and "Celina" in a Nordic Climate. in Agronomy-Basel. 2020;10(7).
doi:10.3390/agronomy10070970 .

Cerović, Radosav, Fotirić-Aksić, Milica, Meland, Mekjell, "Success Rate of Individual Pollinizers for the Pear Cultivars "Ingeborg" and "Celina" in a Nordic Climate" in Agronomy-Basel, 10, no. 7 (2020),
https://doi.org/10.3390/agronomy10070970 . .

TY  - JOUR
AU  - Cerović, Radosav
AU  - Fotirić-Aksić, Milica
AU  - Đorđevic, Milena
AU  - Meland, Mekjell
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4738
AB  - Since the European pear (Pyrus communis L.) is a self-incompatible fruit species, synchrony and compatibility between female parts of the mother plant and male gametes from the pollen donor must be fulfilled. Besides pollination and fertilization, normal embryo and zygote development is one of the prerequisites for the satisfactory yields in pears. The main goal of this experiment was to investigate the functionality of embryo sacs and the embryo's early stages of growth in relation to the fruit set of diploid ('Celina') and the triploid ('Ingeborg') pear cultivars under specific Norwegian climatic conditions. For this purpose, flowers were collected at the beginning of flowering, and on the third, sixth, ninth, and twelfth days after the beginning of this phenophase for two consecutive years. Ovaries were dehydrated, embedded in paraffin wax, sectioned, stained, and observed under the light microscope. In the analyzed cultivars, results showed different tendencies in embryo sac development and degradation processes, in both experimental years, which is probably due to the genetic background of the examined cultivars. Also, fertilization success and fruit set were higher in the second year of study due to the higher average temperature during the flowering period. Diploid cultivar 'Celina' showed much better adaptation to high temperatures in relation to triploid cultivar 'Ingeborg'.
T2  - Plants-Basel
T1  - Functionality of Embryo Sacs in Pear Cultivars 'Ingeborg' and 'Celina' as Related to Fruit Set under Nordic Climate
IS  - 12
VL  - 9
DO  - 10.3390/plants9121716
ER  - 

@article{
author = "Cerović, Radosav and Fotirić-Aksić, Milica and Đorđevic, Milena and Meland, Mekjell",
year = "2020",
abstract = "Since the European pear (Pyrus communis L.) is a self-incompatible fruit species, synchrony and compatibility between female parts of the mother plant and male gametes from the pollen donor must be fulfilled. Besides pollination and fertilization, normal embryo and zygote development is one of the prerequisites for the satisfactory yields in pears. The main goal of this experiment was to investigate the functionality of embryo sacs and the embryo's early stages of growth in relation to the fruit set of diploid ('Celina') and the triploid ('Ingeborg') pear cultivars under specific Norwegian climatic conditions. For this purpose, flowers were collected at the beginning of flowering, and on the third, sixth, ninth, and twelfth days after the beginning of this phenophase for two consecutive years. Ovaries were dehydrated, embedded in paraffin wax, sectioned, stained, and observed under the light microscope. In the analyzed cultivars, results showed different tendencies in embryo sac development and degradation processes, in both experimental years, which is probably due to the genetic background of the examined cultivars. Also, fertilization success and fruit set were higher in the second year of study due to the higher average temperature during the flowering period. Diploid cultivar 'Celina' showed much better adaptation to high temperatures in relation to triploid cultivar 'Ingeborg'.",
journal = "Plants-Basel",
title = "Functionality of Embryo Sacs in Pear Cultivars 'Ingeborg' and 'Celina' as Related to Fruit Set under Nordic Climate",
number = "12",
volume = "9",
doi = "10.3390/plants9121716"
}

Cerović, R., Fotirić-Aksić, M., Đorđevic, M.,& Meland, M.. (2020). Functionality of Embryo Sacs in Pear Cultivars 'Ingeborg' and 'Celina' as Related to Fruit Set under Nordic Climate. in Plants-Basel, 9(12).
https://doi.org/10.3390/plants9121716

Cerović R, Fotirić-Aksić M, Đorđevic M, Meland M. Functionality of Embryo Sacs in Pear Cultivars 'Ingeborg' and 'Celina' as Related to Fruit Set under Nordic Climate. in Plants-Basel. 2020;9(12).
doi:10.3390/plants9121716 .

Cerović, Radosav, Fotirić-Aksić, Milica, Đorđevic, Milena, Meland, Mekjell, "Functionality of Embryo Sacs in Pear Cultivars 'Ingeborg' and 'Celina' as Related to Fruit Set under Nordic Climate" in Plants-Basel, 9, no. 12 (2020),
https://doi.org/10.3390/plants9121716 . .

TY  - JOUR
AU  - Fotirić-Aksić, Milica
AU  - Cerović, Radosav
AU  - Slavković, D.
AU  - Hjeltnes, S.H.
AU  - Meland, Mekjell
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3780
AB  - The Norwegian newly bred pear cultivar, Celina/QTee®, which was launched in 2010, has been released from the Norwegian breeding program that was initiated in 1983. It was derived from the combination ‘Colorée de Juillet’ × ‘Williams’. In Norway the flowering is medium to late and it ripens in the beginning of September. It has large attractive fruits with a red blush. It has a good fruit quality, storability and shelf life. Cross pollination is necessary in order to have high yields of this diploid cultivar. Pollination of ‘Celina’ with pollen of four donors (‘Conference’, ‘Kristina’, ‘Anna’ and ‘Fritjof’), together with open- and self-pollination were studied in this experiment during the 2016 season in Norway. The dynamics of the pollen tube growth (third, sixth and ninth day after anthesis) in style (upper, middle and lower third) and parts of the ovary in all crossing combination, were observed by fluorescent microscopy. Besides giving the best results regarding the average number of pollen tubes in different parts of pistils and the dynamics of pollen tube growth, ‘Conference’ was the only one of which the pollen tubes didn’t show any incompatible signs while growing through the transmitting tissue of the ‘Celina’ style. According to those preliminary results, ‘Conference’ was the best pollenizer, followed by ‘Kristina’. The study has to be repeated for another season.
PB  - Int Soc Horticultural Science, Leuven 1
T2  - Acta Horticulturae
T1  - Selection of the best pollinizer of ‘Celina’ pear
EP  - 370
SP  - 365
VL  - 1229
DO  - 10.17660/ActaHortic.2018.1229.54
ER  - 

@article{
author = "Fotirić-Aksić, Milica and Cerović, Radosav and Slavković, D. and Hjeltnes, S.H. and Meland, Mekjell",
year = "2018",
abstract = "The Norwegian newly bred pear cultivar, Celina/QTee®, which was launched in 2010, has been released from the Norwegian breeding program that was initiated in 1983. It was derived from the combination ‘Colorée de Juillet’ × ‘Williams’. In Norway the flowering is medium to late and it ripens in the beginning of September. It has large attractive fruits with a red blush. It has a good fruit quality, storability and shelf life. Cross pollination is necessary in order to have high yields of this diploid cultivar. Pollination of ‘Celina’ with pollen of four donors (‘Conference’, ‘Kristina’, ‘Anna’ and ‘Fritjof’), together with open- and self-pollination were studied in this experiment during the 2016 season in Norway. The dynamics of the pollen tube growth (third, sixth and ninth day after anthesis) in style (upper, middle and lower third) and parts of the ovary in all crossing combination, were observed by fluorescent microscopy. Besides giving the best results regarding the average number of pollen tubes in different parts of pistils and the dynamics of pollen tube growth, ‘Conference’ was the only one of which the pollen tubes didn’t show any incompatible signs while growing through the transmitting tissue of the ‘Celina’ style. According to those preliminary results, ‘Conference’ was the best pollenizer, followed by ‘Kristina’. The study has to be repeated for another season.",
publisher = "Int Soc Horticultural Science, Leuven 1",
journal = "Acta Horticulturae",
title = "Selection of the best pollinizer of ‘Celina’ pear",
pages = "370-365",
volume = "1229",
doi = "10.17660/ActaHortic.2018.1229.54"
}

Fotirić-Aksić, M., Cerović, R., Slavković, D., Hjeltnes, S.H.,& Meland, M.. (2018). Selection of the best pollinizer of ‘Celina’ pear. in Acta Horticulturae
Int Soc Horticultural Science, Leuven 1., 1229, 365-370.
https://doi.org/10.17660/ActaHortic.2018.1229.54

Fotirić-Aksić M, Cerović R, Slavković D, Hjeltnes S, Meland M. Selection of the best pollinizer of ‘Celina’ pear. in Acta Horticulturae. 2018;1229:365-370.
doi:10.17660/ActaHortic.2018.1229.54 .

Fotirić-Aksić, Milica, Cerović, Radosav, Slavković, D., Hjeltnes, S.H., Meland, Mekjell, "Selection of the best pollinizer of ‘Celina’ pear" in Acta Horticulturae, 1229 (2018):365-370,
https://doi.org/10.17660/ActaHortic.2018.1229.54 . .

TY  - JOUR
AU  - Fotirić-Aksić, Milica
AU  - Rakonjac, Vera
AU  - Cerović, Radosav
AU  - Nikolić, D.
AU  - Colić, Slavica
AU  - Meland, Mekjell
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3637
AB  - Flowering is one of the most important factors in plant fertility. Fruit set in fruits is directly influenced by the beginning, sequence, flow, duration and abundance of flowering. The objective of this study was to evaluate the variability of flowering in 41 'Oblacinska' sour cherry (Prunus cerasus L.) clones, and to recommend early-flowering genotypes for growing in warmer locations where late spring frosts are rare, and some late-flowering clones for sites more susceptible for spring frost. Results from the three years period (2004-06), showed that 'Oblacinska' sour cherry clones flowered in a fixed sequence each year. Average for clone VII/2N, which flowered the earliest, was April 8 and petal fall took place by April 21, whereas clone III/1 bloomed last on April 14 and petal fall took place on April 25. Statistical analysis showed that almost all sub-phases of flowering were under the significant influence of both ecological and genetic factors. Besides, ecologic factors had the highest impact to the variability of beginning of flowering (79.8%), full bloom (76.8%), petal fall (80.2%) and duration of flowering (85.56%). Clones III/1, III/13, V/6 and V/2 were considered as late flowering, whereas clones VII/2N, VI/27, VI/28 and IX/P were early flowering, taking place five days earlier then previous group.
PB  - Int Soc Horticultural Science, Leuven 1
T2  - Cost Cherry Fa1104 Working Group 2 Cherry Phenology, Modelling and Climate Change
T1  - Flowering of 'Oblacinska' sour cherry clones in Serbia
EP  - 29
SP  - 23
VL  - 1162
DO  - 10.17660/ActaHortic.2017.1162.5
ER  - 

@article{
author = "Fotirić-Aksić, Milica and Rakonjac, Vera and Cerović, Radosav and Nikolić, D. and Colić, Slavica and Meland, Mekjell",
year = "2017",
abstract = "Flowering is one of the most important factors in plant fertility. Fruit set in fruits is directly influenced by the beginning, sequence, flow, duration and abundance of flowering. The objective of this study was to evaluate the variability of flowering in 41 'Oblacinska' sour cherry (Prunus cerasus L.) clones, and to recommend early-flowering genotypes for growing in warmer locations where late spring frosts are rare, and some late-flowering clones for sites more susceptible for spring frost. Results from the three years period (2004-06), showed that 'Oblacinska' sour cherry clones flowered in a fixed sequence each year. Average for clone VII/2N, which flowered the earliest, was April 8 and petal fall took place by April 21, whereas clone III/1 bloomed last on April 14 and petal fall took place on April 25. Statistical analysis showed that almost all sub-phases of flowering were under the significant influence of both ecological and genetic factors. Besides, ecologic factors had the highest impact to the variability of beginning of flowering (79.8%), full bloom (76.8%), petal fall (80.2%) and duration of flowering (85.56%). Clones III/1, III/13, V/6 and V/2 were considered as late flowering, whereas clones VII/2N, VI/27, VI/28 and IX/P were early flowering, taking place five days earlier then previous group.",
publisher = "Int Soc Horticultural Science, Leuven 1",
journal = "Cost Cherry Fa1104 Working Group 2 Cherry Phenology, Modelling and Climate Change",
title = "Flowering of 'Oblacinska' sour cherry clones in Serbia",
pages = "29-23",
volume = "1162",
doi = "10.17660/ActaHortic.2017.1162.5"
}

Fotirić-Aksić, M., Rakonjac, V., Cerović, R., Nikolić, D., Colić, S.,& Meland, M.. (2017). Flowering of 'Oblacinska' sour cherry clones in Serbia. in Cost Cherry Fa1104 Working Group 2 Cherry Phenology, Modelling and Climate Change
Int Soc Horticultural Science, Leuven 1., 1162, 23-29.
https://doi.org/10.17660/ActaHortic.2017.1162.5

Fotirić-Aksić M, Rakonjac V, Cerović R, Nikolić D, Colić S, Meland M. Flowering of 'Oblacinska' sour cherry clones in Serbia. in Cost Cherry Fa1104 Working Group 2 Cherry Phenology, Modelling and Climate Change. 2017;1162:23-29.
doi:10.17660/ActaHortic.2017.1162.5 .

Fotirić-Aksić, Milica, Rakonjac, Vera, Cerović, Radosav, Nikolić, D., Colić, Slavica, Meland, Mekjell, "Flowering of 'Oblacinska' sour cherry clones in Serbia" in Cost Cherry Fa1104 Working Group 2 Cherry Phenology, Modelling and Climate Change, 1162 (2017):23-29,
https://doi.org/10.17660/ActaHortic.2017.1162.5 . .

TY  - JOUR
AU  - Fotirić-Aksić, Milica
AU  - Cerović, Radosav
AU  - Rakonjac, Vera
AU  - Bakić, Ivana
AU  - Colić, Slavica
AU  - Meland, Mekjell
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3652
AB  - Vitality of pollen, in vitro pollen germination and pollen tube growth (pollen tube length and pollen tube growth rate) were investigated in Oblacinska sour cherry in order to determine the differences between clones which have divergent yielding potential. For this purpose two 'Oblacinska' sour cherry clones with high fruit set and high yields (II/2, III/9) and two with low fruit set and low-yielding (XI/3 and XIII/1) were used in this study. Pollen germination was done on artificial medium containing 14% sucrose and 0.3% agar-agar at room temperature (23 degrees C). Pollen tube growth was stopped with a drop of 40% formaldehyde, 1, 3, 6, 12 and 24 h after contact with the medium. The maximum percentage of germination ranged from 13.01% (clone II/2, after 1 h) to 54.19% (clone III/9, after 24 h). Pollen tube length varied from 64.84 mu m (clone XIII/1, after 1 h) to  gt  1,100 mu m (clones II/2 and III/9, after 24 h). Pollen growth rate was quite high (up to 1.71 mu m min(-1)) after 6 h of germination, but rather decreasing until 24 h of germination (0.56. 0.83 mu m min(-1)). The dynamics of in vitro pollen tubes growth among the clones were quite different, especially after 12 h and 24 h of germination. Clones that are singled out as fruitful (II/2 and III/9) gave much better results regarding pollen germination and pollen tube growth in comparison to clones which were characterized by low fruit set and yields (XI/3 and XIII/1).
PB  - Društvo genetičara Srbije, Beograd
T2  - GENETIKA-BELGRADE
T1  - Vitality and in vitro pollen germination of different 'oblacinska' sour cherry clones
EP  - 800
IS  - 3
SP  - 791
VL  - 49
DO  - 10.2298/GENSR1703791A
ER  - 

@article{
author = "Fotirić-Aksić, Milica and Cerović, Radosav and Rakonjac, Vera and Bakić, Ivana and Colić, Slavica and Meland, Mekjell",
year = "2017",
abstract = "Vitality of pollen, in vitro pollen germination and pollen tube growth (pollen tube length and pollen tube growth rate) were investigated in Oblacinska sour cherry in order to determine the differences between clones which have divergent yielding potential. For this purpose two 'Oblacinska' sour cherry clones with high fruit set and high yields (II/2, III/9) and two with low fruit set and low-yielding (XI/3 and XIII/1) were used in this study. Pollen germination was done on artificial medium containing 14% sucrose and 0.3% agar-agar at room temperature (23 degrees C). Pollen tube growth was stopped with a drop of 40% formaldehyde, 1, 3, 6, 12 and 24 h after contact with the medium. The maximum percentage of germination ranged from 13.01% (clone II/2, after 1 h) to 54.19% (clone III/9, after 24 h). Pollen tube length varied from 64.84 mu m (clone XIII/1, after 1 h) to  gt  1,100 mu m (clones II/2 and III/9, after 24 h). Pollen growth rate was quite high (up to 1.71 mu m min(-1)) after 6 h of germination, but rather decreasing until 24 h of germination (0.56. 0.83 mu m min(-1)). The dynamics of in vitro pollen tubes growth among the clones were quite different, especially after 12 h and 24 h of germination. Clones that are singled out as fruitful (II/2 and III/9) gave much better results regarding pollen germination and pollen tube growth in comparison to clones which were characterized by low fruit set and yields (XI/3 and XIII/1).",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "GENETIKA-BELGRADE",
title = "Vitality and in vitro pollen germination of different 'oblacinska' sour cherry clones",
pages = "800-791",
number = "3",
volume = "49",
doi = "10.2298/GENSR1703791A"
}

Fotirić-Aksić, M., Cerović, R., Rakonjac, V., Bakić, I., Colić, S.,& Meland, M.. (2017). Vitality and in vitro pollen germination of different 'oblacinska' sour cherry clones. in GENETIKA-BELGRADE
Društvo genetičara Srbije, Beograd., 49(3), 791-800.
https://doi.org/10.2298/GENSR1703791A

Fotirić-Aksić M, Cerović R, Rakonjac V, Bakić I, Colić S, Meland M. Vitality and in vitro pollen germination of different 'oblacinska' sour cherry clones. in GENETIKA-BELGRADE. 2017;49(3):791-800.
doi:10.2298/GENSR1703791A .

Fotirić-Aksić, Milica, Cerović, Radosav, Rakonjac, Vera, Bakić, Ivana, Colić, Slavica, Meland, Mekjell, "Vitality and in vitro pollen germination of different 'oblacinska' sour cherry clones" in GENETIKA-BELGRADE, 49, no. 3 (2017):791-800,
https://doi.org/10.2298/GENSR1703791A . .

TY  - CONF
AU  - Fotirić-Aksić, Milica
AU  - Nikolić, T.
AU  - Zec, Gordan
AU  - Cerović, Radosav
AU  - Nikolić, M.
AU  - Rakonjac, Vera
AU  - Nikolić, D.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3361
AB  - Canetova' is a new sweet cherry cultivar released at the Faculty of Agriculture, University of Belgrade. It was selected as a spontaneous seedling and recognized in 2014 by the Serbian Ministry of Agriculture and Environmental Protection. Comparisons with the standard cultivar 'Bigarreau Jaboulay' were done during two consecutive years (2013-2014). It bloomed 3-4 days after the control cultivar. Method of fluorescent microscopy proved that this is a self-incompatible cultivar. The maturing time was 3-4 days after 'Bigarreau Jaboulay'. The productivity was little lower, but the fruit weight is much higher in 'Canetova' (8.75 g) compared with 'Bigarreau Jaboulay' (6.75 g). The taste is sweet, higher value of soluble solid/total acidity ratio (23.31) compared to the standard cultivar (18.89). Aroma is very pleasant. It showed resistance to economically important diseases (Monilinia laxa and Monilinia fructigena, Blumeriella jaappi and Wilsonomyces carpophilus) and low teperatures, like standard cultivar. Regarding early ripening time, large fruit and pleasant taste, this cultivar started spreading in Belgrade's surrounding.
PB  - Int Soc Horticultural Science, Leuven 1
C3  - III Balkan Symposium on Fruit Growing
T1  - 'Canetova', a new sweet cherry cultivar from Serbia
EP  - 94
SP  - 91
VL  - 1139
DO  - 10.17660/ActaHortic.2016.1139.16
ER  - 

@conference{
author = "Fotirić-Aksić, Milica and Nikolić, T. and Zec, Gordan and Cerović, Radosav and Nikolić, M. and Rakonjac, Vera and Nikolić, D.",
year = "2016",
abstract = "Canetova' is a new sweet cherry cultivar released at the Faculty of Agriculture, University of Belgrade. It was selected as a spontaneous seedling and recognized in 2014 by the Serbian Ministry of Agriculture and Environmental Protection. Comparisons with the standard cultivar 'Bigarreau Jaboulay' were done during two consecutive years (2013-2014). It bloomed 3-4 days after the control cultivar. Method of fluorescent microscopy proved that this is a self-incompatible cultivar. The maturing time was 3-4 days after 'Bigarreau Jaboulay'. The productivity was little lower, but the fruit weight is much higher in 'Canetova' (8.75 g) compared with 'Bigarreau Jaboulay' (6.75 g). The taste is sweet, higher value of soluble solid/total acidity ratio (23.31) compared to the standard cultivar (18.89). Aroma is very pleasant. It showed resistance to economically important diseases (Monilinia laxa and Monilinia fructigena, Blumeriella jaappi and Wilsonomyces carpophilus) and low teperatures, like standard cultivar. Regarding early ripening time, large fruit and pleasant taste, this cultivar started spreading in Belgrade's surrounding.",
publisher = "Int Soc Horticultural Science, Leuven 1",
journal = "III Balkan Symposium on Fruit Growing",
title = "'Canetova', a new sweet cherry cultivar from Serbia",
pages = "94-91",
volume = "1139",
doi = "10.17660/ActaHortic.2016.1139.16"
}

Fotirić-Aksić, M., Nikolić, T., Zec, G., Cerović, R., Nikolić, M., Rakonjac, V.,& Nikolić, D.. (2016). 'Canetova', a new sweet cherry cultivar from Serbia. in III Balkan Symposium on Fruit Growing
Int Soc Horticultural Science, Leuven 1., 1139, 91-94.
https://doi.org/10.17660/ActaHortic.2016.1139.16

Fotirić-Aksić M, Nikolić T, Zec G, Cerović R, Nikolić M, Rakonjac V, Nikolić D. 'Canetova', a new sweet cherry cultivar from Serbia. in III Balkan Symposium on Fruit Growing. 2016;1139:91-94.
doi:10.17660/ActaHortic.2016.1139.16 .

Fotirić-Aksić, Milica, Nikolić, T., Zec, Gordan, Cerović, Radosav, Nikolić, M., Rakonjac, Vera, Nikolić, D., "'Canetova', a new sweet cherry cultivar from Serbia" in III Balkan Symposium on Fruit Growing, 1139 (2016):91-94,
https://doi.org/10.17660/ActaHortic.2016.1139.16 . .

TY  - CONF
AU  - Fotirić-Aksić, Milica
AU  - Nikolić, T.
AU  - Zec, Gordan
AU  - Cerović, Radosav
AU  - Nikolić, M.
AU  - Milivojević, J.
AU  - Radivojević, D.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3360
AB  - Lenka' is a new sour cherry cultivar released from the sour cherry breeding program at the Faculty of Agriculture, University of Belgrade. It was selected as a spontaneous seedling and recognized as cultivar in 2014 by the Serbian Ministry of Agriculture and Environmental Protection. The evaluation of this cultivar was done in comparison with the control cultivar 'Meteor Korai' during a two-year period (20122013). Averagely, it bloomed a day after the control cultivar. Method of fluorescent microscopy indicated that this is a self-compatible cultivar. The ripening time is a day after 'Meteor Korai'. The productivity is on a level with standard cultivar. The fruit is larger (7.6 g), compared to 'Meteor Korai' (5.6 g), with significantly higher fruit stalk length (4.5 and 3.6 cm, respectively). The taste is sweet-acidic, harmonic, having higher value of soluble solids/total acidity ratio (17.7) compared to the standard cultivar (13.7). 'Lenka' is highly resistant to economically important diseases (Monilinia laxa, Monilinia fructigena, Blumeriella jaapii and Wilsonomyces carpophilus) and low teperatures. Regarding large fruit and pleasant taste, this cultivar could be used both for processing and fresh consumption.
PB  - Int Soc Horticultural Science, Leuven 1
C3  - III Balkan Symposium on Fruit Growing
T1  - 'Lenka', a new sour cherry cultivar from Serbia
EP  - 99
SP  - 95
VL  - 1139
DO  - 10.17660/ActaHortic.2016.1139.17
ER  - 

@conference{
author = "Fotirić-Aksić, Milica and Nikolić, T. and Zec, Gordan and Cerović, Radosav and Nikolić, M. and Milivojević, J. and Radivojević, D.",
year = "2016",
abstract = "Lenka' is a new sour cherry cultivar released from the sour cherry breeding program at the Faculty of Agriculture, University of Belgrade. It was selected as a spontaneous seedling and recognized as cultivar in 2014 by the Serbian Ministry of Agriculture and Environmental Protection. The evaluation of this cultivar was done in comparison with the control cultivar 'Meteor Korai' during a two-year period (20122013). Averagely, it bloomed a day after the control cultivar. Method of fluorescent microscopy indicated that this is a self-compatible cultivar. The ripening time is a day after 'Meteor Korai'. The productivity is on a level with standard cultivar. The fruit is larger (7.6 g), compared to 'Meteor Korai' (5.6 g), with significantly higher fruit stalk length (4.5 and 3.6 cm, respectively). The taste is sweet-acidic, harmonic, having higher value of soluble solids/total acidity ratio (17.7) compared to the standard cultivar (13.7). 'Lenka' is highly resistant to economically important diseases (Monilinia laxa, Monilinia fructigena, Blumeriella jaapii and Wilsonomyces carpophilus) and low teperatures. Regarding large fruit and pleasant taste, this cultivar could be used both for processing and fresh consumption.",
publisher = "Int Soc Horticultural Science, Leuven 1",
journal = "III Balkan Symposium on Fruit Growing",
title = "'Lenka', a new sour cherry cultivar from Serbia",
pages = "99-95",
volume = "1139",
doi = "10.17660/ActaHortic.2016.1139.17"
}

Fotirić-Aksić, M., Nikolić, T., Zec, G., Cerović, R., Nikolić, M., Milivojević, J.,& Radivojević, D.. (2016). 'Lenka', a new sour cherry cultivar from Serbia. in III Balkan Symposium on Fruit Growing
Int Soc Horticultural Science, Leuven 1., 1139, 95-99.
https://doi.org/10.17660/ActaHortic.2016.1139.17

Fotirić-Aksić M, Nikolić T, Zec G, Cerović R, Nikolić M, Milivojević J, Radivojević D. 'Lenka', a new sour cherry cultivar from Serbia. in III Balkan Symposium on Fruit Growing. 2016;1139:95-99.
doi:10.17660/ActaHortic.2016.1139.17 .

Fotirić-Aksić, Milica, Nikolić, T., Zec, Gordan, Cerović, Radosav, Nikolić, M., Milivojević, J., Radivojević, D., "'Lenka', a new sour cherry cultivar from Serbia" in III Balkan Symposium on Fruit Growing, 1139 (2016):95-99,
https://doi.org/10.17660/ActaHortic.2016.1139.17 . .

TY  - JOUR
AU  - Fotirić-Aksić, Milica
AU  - Cerović, Radosav
AU  - Ercisli, Sezai
AU  - Jensen, Martin
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3468
AB  - The Oblacinska sour cherry (Prunus cerasus) is a mixture of different clones with similar tree and fruit characteristics that is indigenous to and widely planted in commercial orchards in Serbia. Sour cherry, including Oblacinska sour cherry clones, exhibits irregular meiosis which may contribute to low fruit set in some selections. The goal of this study was to examine the process of microsporogenesis and to determine if meiosis and its anomalies effect the in vitro pollen germination and pollen tube length in four 'Oblacinska' sour cherry clones that differ in fruit set and yields. All clones displayed varying degrees of chromosomal abnormalities in all meiosis sub-phases. The abnormalities became evident from late pachytene with more than half of the pollen mother cells (PMC) showing abnormal conjugation of chromosomes in metaphase I. The lowest number of PMCs with laggards was in clone III/9 and the highest in clone XIII/1. In second division, the univalent and multivalent association was observed at metaphase-II, the lagging and stickiness in anaphase-II, and the phenomenon persisted up to the microspore stage. In all four 'Oblacinska' clones, PMCs exhibited cytomixis phenomena, however, it was only observed in the second experimental year. Cytomixis differed among the four clones but was equally frequent in all stages of meiosis. The syncytia formed, most often consisted of 2-3 PMCs that were at the same phase of meiosis, and exhibited common cytoplasm and occasionally nuclear fusion. In vitro pollen germination and pollen tube length significantly differed between the clones. Most probably abnormalities during meiosis, regardless of the good results of pollen germination, influenced the reduced potential clones XI/3 and XIII/1.
PB  - Elsevier Gmbh, Munich
T2  - Flora
T1  - Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones
EP  - 34
SP  - 25
VL  - 219
DO  - 10.1016/j.flora.2015.12.009
ER  - 

@article{
author = "Fotirić-Aksić, Milica and Cerović, Radosav and Ercisli, Sezai and Jensen, Martin",
year = "2016",
abstract = "The Oblacinska sour cherry (Prunus cerasus) is a mixture of different clones with similar tree and fruit characteristics that is indigenous to and widely planted in commercial orchards in Serbia. Sour cherry, including Oblacinska sour cherry clones, exhibits irregular meiosis which may contribute to low fruit set in some selections. The goal of this study was to examine the process of microsporogenesis and to determine if meiosis and its anomalies effect the in vitro pollen germination and pollen tube length in four 'Oblacinska' sour cherry clones that differ in fruit set and yields. All clones displayed varying degrees of chromosomal abnormalities in all meiosis sub-phases. The abnormalities became evident from late pachytene with more than half of the pollen mother cells (PMC) showing abnormal conjugation of chromosomes in metaphase I. The lowest number of PMCs with laggards was in clone III/9 and the highest in clone XIII/1. In second division, the univalent and multivalent association was observed at metaphase-II, the lagging and stickiness in anaphase-II, and the phenomenon persisted up to the microspore stage. In all four 'Oblacinska' clones, PMCs exhibited cytomixis phenomena, however, it was only observed in the second experimental year. Cytomixis differed among the four clones but was equally frequent in all stages of meiosis. The syncytia formed, most often consisted of 2-3 PMCs that were at the same phase of meiosis, and exhibited common cytoplasm and occasionally nuclear fusion. In vitro pollen germination and pollen tube length significantly differed between the clones. Most probably abnormalities during meiosis, regardless of the good results of pollen germination, influenced the reduced potential clones XI/3 and XIII/1.",
publisher = "Elsevier Gmbh, Munich",
journal = "Flora",
title = "Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones",
pages = "34-25",
volume = "219",
doi = "10.1016/j.flora.2015.12.009"
}

Fotirić-Aksić, M., Cerović, R., Ercisli, S.,& Jensen, M.. (2016). Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones. in Flora
Elsevier Gmbh, Munich., 219, 25-34.
https://doi.org/10.1016/j.flora.2015.12.009

Fotirić-Aksić M, Cerović R, Ercisli S, Jensen M. Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones. in Flora. 2016;219:25-34.
doi:10.1016/j.flora.2015.12.009 .

Fotirić-Aksić, Milica, Cerović, Radosav, Ercisli, Sezai, Jensen, Martin, "Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones" in Flora, 219 (2016):25-34,
https://doi.org/10.1016/j.flora.2015.12.009 . .

TY  - JOUR
AU  - Cerović, Radosav
AU  - Pajić, Zorica
AU  - Filipović, Milomir
AU  - Fotirić-Aksić, Milica
AU  - Radičević, Sanja
AU  - Nikolić, Dragan
AU  - Đorđević, Milena
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2707
AB  - The study was conducted on the in vitro pollen germination at 26 degrees, 28 degrees, 32 degrees and 35 degrees C for 24h of male parental lines, pollen tube growth in vivo in cross pollination of female and male parental lines that make couples in four hybrids: ZP 504 su (female ZPPL 51 x male ZPPL 67); ZP 677 (female ZPPL 17 x male ZPPL 201); ZP 704 (female ZPPL 109 x male ZPPL 79), ZP 611 k (female ZPPL 126 x male ZPPL 105), and the open pollination of female parental lines of the above mentioned hybrids. Pollen germination in vitro and pollen tube growth dynamics in vivo showed different genotypic specificities with the tests applied. The obtained results were discussed in the context of reproductive biology of ZP maize lines and aimed to create the preconditions for successful management and direction of the process in practice -seed production in certain environmental conditions.
PB  - Društvo genetičara Srbije, Beograd
T2  - Genetika-Belgrade
T1  - Pollen germination and pollen tube growth in zp maize lines
EP  - 947
IS  - 3
SP  - 935
VL  - 46
DO  - 10.2298/GENSR1403935C
ER  - 

@article{
author = "Cerović, Radosav and Pajić, Zorica and Filipović, Milomir and Fotirić-Aksić, Milica and Radičević, Sanja and Nikolić, Dragan and Đorđević, Milena",
year = "2014",
abstract = "The study was conducted on the in vitro pollen germination at 26 degrees, 28 degrees, 32 degrees and 35 degrees C for 24h of male parental lines, pollen tube growth in vivo in cross pollination of female and male parental lines that make couples in four hybrids: ZP 504 su (female ZPPL 51 x male ZPPL 67); ZP 677 (female ZPPL 17 x male ZPPL 201); ZP 704 (female ZPPL 109 x male ZPPL 79), ZP 611 k (female ZPPL 126 x male ZPPL 105), and the open pollination of female parental lines of the above mentioned hybrids. Pollen germination in vitro and pollen tube growth dynamics in vivo showed different genotypic specificities with the tests applied. The obtained results were discussed in the context of reproductive biology of ZP maize lines and aimed to create the preconditions for successful management and direction of the process in practice -seed production in certain environmental conditions.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika-Belgrade",
title = "Pollen germination and pollen tube growth in zp maize lines",
pages = "947-935",
number = "3",
volume = "46",
doi = "10.2298/GENSR1403935C"
}

Cerović, R., Pajić, Z., Filipović, M., Fotirić-Aksić, M., Radičević, S., Nikolić, D.,& Đorđević, M.. (2014). Pollen germination and pollen tube growth in zp maize lines. in Genetika-Belgrade
Društvo genetičara Srbije, Beograd., 46(3), 935-947.
https://doi.org/10.2298/GENSR1403935C

Cerović R, Pajić Z, Filipović M, Fotirić-Aksić M, Radičević S, Nikolić D, Đorđević M. Pollen germination and pollen tube growth in zp maize lines. in Genetika-Belgrade. 2014;46(3):935-947.
doi:10.2298/GENSR1403935C .

Cerović, Radosav, Pajić, Zorica, Filipović, Milomir, Fotirić-Aksić, Milica, Radičević, Sanja, Nikolić, Dragan, Đorđević, Milena, "Pollen germination and pollen tube growth in zp maize lines" in Genetika-Belgrade, 46, no. 3 (2014):935-947,
https://doi.org/10.2298/GENSR1403935C . .