Vol. 11, Issue 12 (2022)

Author(s):
SN Deokar, VS Jagtap, SA Samindre, SB Gaikwad and PR Sargar

Abstract:
The present investigation was conducted at experimental research farm Department of Horticulture, College of Agriculture, Latur, in 2022 with a view to study the genetics of yield and yield components through generation mean analysis. The scaling test exhibited that, there was presence of epistatic gene interaction. The duplicate epistasis were observed in number of branches per vine, Days required for first female flower, node at which first female flower, number of female flower per vine, number of fruit per vine, fruit yield per vine, fruit yield per plot, fruit yield per hectar, downey mildew infestation in all three crosses viz LTR-1 (Aurangabad Local) x LTR-5 (Buldhana Local , LTR-3 (Chandrapur Local) x LTR-4 (karjat Local) and LTR-2 (Ahemdnagar Local) x LTR-4 (karjat Local). This suggest that the need of specific breeding procedure such as intermating of most desirable segregants followed by selfing and selecting superior genotypes coupled with progeny testing to exploit the population under study. Selection in early generation would be effective when additive effect are larger than non- additive ones. Further if the non- additive portions are larger than additive one , the improvement of the character need intensive selection through later generation.