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VARIABILITY AND HEREDITY OF SOME QUALITATIVE AND QUANTITATIVE GRAPEVINE CHARACTERISTICS
(Society of Geneticists of Serbia, Belgrade, 2018) NIKOLIĆ, Dragan; BANJANIN, Tijana; RANKOVIĆ-VASIĆ, Zorica
Variability and mode of heredity of some important qualitative and quantitative grapevine characteristics in 45 seedlings of F1 generation obtained from crossing combination Seedling 113 x Muscat Hamburg were investigated in this study. The seedlings of F1 generation for the investigated characteristics were arranged in certain number of categories by the OIV method. As variability indexes, standard deviation (S) and coefficient of variation (V) were used. Evaluation of the mode of heredity was done by χ2 test and t-test. Considering examined characteristics, the highest variability showed grape yield (V=58.9%), and the lowest sugar content in must (V=16.3%). Color of berry skin, cluster resistance to Botrytis cinerea and leaf resistance to Plasmopara viticola showed monogenic mode of heredity. Exception from the monogenic mode of heredity was determined for the flavor of berry. Grape yield, bunch weight and berry weight showed negative heterosis. For the sugar content in must, domination of the parent with low sugar content in must was determined.