The effects of pollens introduced from six sweet and sour cherry cultivars (siah mashhad sweet cherry, shishei sweet cherry, local sour cherry and Érdi bőtermő, Érdi jubileum and Cigány meggy sour cherry) were studied on fruit properties of three Hungarian sour cherry cultivars (Érdi bőtermő, Érdi jubileum and Cigány meggy ) grown under Mashhad, Iran climatic conditions. The results showed relative variation in Hungarian sour cherry fruits as affected by pollen sources. Pollens of siah mashhad as paternal choice had better effects were gave high quality of maternal tree fruits compared to control and other pollen donors. Pollens of siah mashhad caused the increase of fruit size in Cigány meggy cultivar, as well as reduction in total soluble solids of Érdi bőtermő fruits, however, it does not have significant effect on the qualitative traits of Érdi jubileum fruits.

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