Influence of pollination mode on fruit set in plum (Prunus domestica)

Investigation of initial and final fruit set in the ‘Pozna Plava’ plum cultivar characterised by a low fruit set tendency was conducted in three pollination modes (cross-, self- and open pollination), over a two-year period (2010-2011). The cross-pollination was performed using the pollen of cultivars ‘Presenta’, ‘Hanita’ and ‘Čačanska Najbolja’. Pollen germination in vitro for the cultivars used in the cross-pollination was over 40%, whereas in ‘Pozna Plava’ it was less than 18%. In both years, the cross-pollination with ‘Presenta’ resulted in the highest initial (69.54 and 51.85%) and final fruit set (41.45 and 30.92%). In addition, high values of initial and final fruit set were also obtained with ‘Hanita’ and ‘Čačanska Najbolja’ as pollinizers.
Self-pollination mode in both years resulted in somewhat lower initial (47.53 and 21.74%) and final fruit set (33.24 and 12.35%); and the lowest values were recorded in the open pollination mode (initial fruit set of 12.28 and 5.14%, final fruit set of 0.79 and 2.83%). The results revealed a clear impact of the pollination mode and air temperatures on the fruit set of plum cultivar ‘Pozna Plava’ during the first ten days from the beginning of full flowering.

III Balkan Symposium on Fruit Growing

M. Đorđević, R. Cerović, S. Radičević, D. Nikolić, S. Marić, N. Milosević, I.S. Gli¿ić

plum, fruit set, pollen germination in vitro, pollination mode, temperature

https://doi.org/10.17660/ActaHortic.2016.1139.60