CROSS-INCOMPATIBILITY IN STONE FRUITS

摘要

Examinations were conducted on 93 cultivars of 6 stone fruit species in 340 combinations during 1968-1991. In 62.9 percent and 53.5 percent of cross combinations fruit set did not exceed 5 percent and 1 percent , respectively. In sour cherry and apricot the aim of the crosses was to determine the degree of incompatibility. It is the tendentious choice of pollination partners that resulted in the high rate of incompatible combinations. The frequent occurrence of cross-incompatibility in sweet cherry and Japanese-type plums is a characheristic of these species.