Estimation of genetic components through biparental progenies in muskmelon (Cucumis melo L.)
Keywords:
Biparental progenies, gene action, genetic advance, heritability, muskmelonAbstract
Sixteen biparental progenies (BIPs) involving two crosses, IC- 274014 × Punjab Sunehri and IC-274014 × MM-28 developed by North Carolina Design III were evaluated in a Randomized Complete Block Design during 2009. The observations were recorded on days taken to first pistillate flower opening, total fruit yield per vine, number of fruits per vine, fruit weight, rind thickness, flesh thickness, and total soluble solids (TSS) content. Additive genetic variance was greater for days taken to first pistillate flower opening, total fruit yield per vine, number of fruits per vine and flesh thicknes in IC- 274014 × Punjab Sunehri and for number of fruits per vine, fruit weight, rind thickness and TSS content in IC-274014 × MM-28. Dominance variance was higher than additive genetic variance for total fruit yield per vine, fruit number per vine, fruit weight and rind thickness in cross IC 274014 × Punjab Sunehri, whereas dominance variance was higher for days to first female flower opening, total fruit yield per vine, fruit weight, rind thickness and flesh thicnkess in IC-274014 × MM-28. In cross IC- 274014 × Punjab Sunehri, for total fruit yield per vine, fruit weight, rind thickness and TSS content, degree of dominance was more than one along with low heritability and genetic advance. However, in the cross IC-274014 × MM-28, for days taken to first pistillate flower opening, total fruit yield per vine fruit weight, , rind thickness and TSS, degree of dominance was more than one along with low heritability and genetic advance.
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References
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