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Article

Viability of Embryo Sacs and Fruit Set in Different Plum (Prunus domestica L.) Cultivars Grown under Norwegian Climatic Conditions

1
Innovation Centre, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
2
Department of Fruit Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia
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Department of Pomology and Fruit Breeding, Fruit Research Institute Čačak, Kralja Petra I/9, 32000 Čačak, Serbia
4
Department of Horticulture, NIBIO Ullensvang, Norwegian Institute of Bioeconomy Research, Ullensvangvegen 1005, N-5781 Lofthus, Norway
*
Author to whom correspondence should be addressed.
Academic Editors: Geza Bujdoso, Károly Hrotkó, Miljan Cvetkovic and Klara Cseke
Plants 2022, 11(2), 219; https://doi.org/10.3390/plants11020219
Received: 16 December 2021 / Revised: 10 January 2022 / Accepted: 11 January 2022 / Published: 14 January 2022
(This article belongs to the Special Issue Improvements/Innovations Related to Fruit Varieties)
Compatibility and synchrony between specialized tissues of the pistil, female gametophytes and male gametophytes, are necessary for successful pollination, fertilization, and fruit set in angiosperms. The aim of the present work was to study the development and viability of embryo sacs, as well as fertilization success, in relation to the fruit set of the cultivars ‘Mallard’, ‘Edda’, ‘Jubileum’, and ‘Reeves’, under specific Norwegian climatic conditions. Emasculated, unpollinated, and open-pollinated flowers were collected at the beginning of flowering, and on the 3rd, 6th, 9th, and 12th days after flowering, from all four plum cultivars over two years (2018/2019). Ovaries were dehydrated, embedded in paraffin wax, sectioned, stained, and observed under a light microscope. Results showed the existence of synchronization between successive phases in the development of the embryo sac and individual phases of flowering. All plum cultivars had higher percentages of viable embryo sacs, fertilized embryo sacs, and fruit set in 2018 than in 2019. These differences may be related to the very low temperatures during the post-full-flowering period in 2019, and to the low adaptation of some studied cultivars to unfavorable conditions. In our study, the cultivar ‘Jubileum’ showed the highest percentage of viable embryo sacs, fertilized embryo sacs, and fruit set compared to other cultivars, i.e., the best low-temperature adaptation. View Full-Text
Keywords: embryo sac; fertilization; ovule; pollination; temperature embryo sac; fertilization; ovule; pollination; temperature
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MDPI and ACS Style

Cerović, R.; Akšić, M.F.; Đorđević, M.; Meland, M. Viability of Embryo Sacs and Fruit Set in Different Plum (Prunus domestica L.) Cultivars Grown under Norwegian Climatic Conditions. Plants 2022, 11, 219. https://doi.org/10.3390/plants11020219

AMA Style

Cerović R, Akšić MF, Đorđević M, Meland M. Viability of Embryo Sacs and Fruit Set in Different Plum (Prunus domestica L.) Cultivars Grown under Norwegian Climatic Conditions. Plants. 2022; 11(2):219. https://doi.org/10.3390/plants11020219

Chicago/Turabian Style

Cerović, Radosav, Milica F. Akšić, Milena Đorđević, and Mekjell Meland. 2022. "Viability of Embryo Sacs and Fruit Set in Different Plum (Prunus domestica L.) Cultivars Grown under Norwegian Climatic Conditions" Plants 11, no. 2: 219. https://doi.org/10.3390/plants11020219

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