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Vol. 7, Issue 9 (2018)

Combining ability for fruit yield and its component traits in ridge gourd (Luffa acutangula (Roxb.) L.)

Author(s):
Kiran Jadav and Sapovadiya MH
Abstract:
Combining ability for fruit yield and its component traits in ridge gourd was studied using line x tester mating design involving three testers and seven lines. Analysis of variance for combining ability revealed that mean squares due due to lines were significant for all the characters except length of fruit, while mean squares due testers were significant for all characters except number of primary branches per vine, length of fruit, girth of fruit, rind thickness and number of seeds per fruit. Mean square due to lines x testers interaction, were also significant for all the characters except length of fruit, rind thickness, number of seeds per fruit and 100-seed weight. The results indicated the importance of both additive and non-additive genetic variances in the expression of these characters. The lines JRG-13-04, JRG-13-06 and JRG-13-07 and the testers Jaipur Long displayed high GCA effect and good per se performance for fruit yield per vine and some desirable traits could be utilized in multiple crossing programmes. The sca effect of the crosses indicated that eight hybrids manifested significant and positive sca effect for fruit yield per vine. The best three specific combiners were JRG-13-07 x Pusa Nasdar, JRG-13-06 x Arka Sujat and JRG-13-05 x Jaipur Long. These crosses also showed desirable sca effect for important yield traits. The crosses exhibiting high sca effect involved either good x poor general combiners for majority of characters indicating the presence of additive x dominance type of gene interactions.
Pages: 62-66  |  153 Views  6 Downloads
How to cite this article:
Kiran Jadav and Sapovadiya MH. Combining ability for fruit yield and its component traits in ridge gourd (<em>Luffa acutangula </em>(Roxb.) L.). 2018; 7(9): 62-66.
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