Abstract
An experiment conducted using factorial based on randomized completely block design during 2005 and 2006. Flowers of Érdi bőtermő, Érdi jubileum and Cigány meggy before anthesis and in balloon stages were isolated with paper bags from guest pollens and pollinated in appropriate time. The averages of final fruit set showed the advantage of open pollination (14.6% fruit set) in compare with artificial self pollination (13.0% fruit set) and natural self pollination (4.4% fruit set). Siah mashhad sweet cherry cultivar with more than 70% overlap of flowering and 9.8% fruit set in 2005 and 17.9% in 2006 was the best among applied pollinisers for Érdi bôtermô sour cherry cultivar.Also, Siah mashhad sweet cherry with more than 50%overlap of flowering time and 25.8%fruit set was the best polliniser for Cigány megg. Among the pollinisers, Siah mashhad was the best for Érdi jubileum with more than 50% overlap and 15.22% fruit set. Meanwhile, pollens of Siah mashhad caused the increase of fruit size in Cigány meggy cultivar. phenomenon. Pollens of Siah mashhad caused reduction in total soluble solids of Érdi bôtermô fruits, however, it does not have any significant effect on the acid rate of fruits.
Highlights
First information’s on sour cherry self fertility was mentioned by Magyar (1935), Maliga (1942) and Husz (1943) manuscripts
Results of Apostol, Nyéki and Szabó research during 1988–1991 showed fruit set obtains from open and self pollination is mainly related to climatic conditions and highly variable during seasons and the amount of fruit set fluctuation by self pollination is higher than open pollination
They showed that results of open pollination of self sterile Pandy 7 sour cherry were more variable than self fertile cultivars
Summary
First information’s on sour cherry self fertility was mentioned by Magyar (1935), Maliga (1942) and Husz (1943) manuscripts. In sour cherry maximum fruit set due to self fertility could reach to 50%. To earn enough yields in sour cherry, 25 to 30% of flowers should set fruits (Gozob et al, 1981). Percentage of fruit set in self fertile varieties may increase by cross pollination Krapf (1976). Cold and rainy weathers during blooming period have negative affects on the yield of self sterile sour cherry cultivars means that yield reduces highly. Enikeev (1973) reported that yearly variations have more salient effects on the yield of self sterile sour cherries in comparison with self fertile ones, namely, in self fertile varieties yield is stable
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