UNILATERAL AND INTER-INCOMPATIBILITY IN SOUR CHERRY CULTIVARS

J. Apostol, J. Nyéki, Z. Szabó
Inter-compatibility of several sour cherry hybrids was studied from 1968 to 1976. Flowering time and fertility of 32 sour cherry cultivars and selections were studied in Érd from 1972 to 1974 (Nyéki, 1974). From 1988 to 1991, studies were extended to additional cultivars (Nyéki and Szabó, 1990; Nyéki et al., 1992). The studies concentrated on unilateral and inter-incompatibility of genetically self-sterile and partially self-fertile cultivars.

Most (98–99%) sour cherry cultivars can fertilize each other at different rates (1–30%), depending on the year and variety combination (Nyéki, 1989). A low rate of unilateral and inter-incompatibility exists among sour cherry cultivars. In our studies on sour cherry hybrids, inter-incompatibility was found in 5 cases between 1968 and 1976. In each case, the female parent was Pándy meggy. According to the data from 1986 to 1991, 2 of 20 variety combinations showed unilateral incompatibility (Pándy meggy 7 x Debreceni botermo, Pándy meggy 7 x Kántorjánosi 1). Reciprocal incompatibility was found when crossing Pándy meggy 7 x Újfehértói fürtös.

Apostol, J., Nyéki, J. and Szabó, Z. (1996). UNILATERAL AND INTER-INCOMPATIBILITY IN SOUR CHERRY CULTIVARS. Acta Hortic. 410, 121-126
DOI: 10.17660/ActaHortic.1996.410.18
https://doi.org/10.17660/ActaHortic.1996.410.18

Acta Horticulturae