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Title: Genetics of yield and yield components in muskmelon (Cucumis melo L.)
Authors: J S, Aravinda Kumar,
Guide/Chairperson: M, Prabhakar
Keywords: Genetics
Issue Date: 2005
Year of Submission: 2005
Abstract: An investigation was carried out to find out the combining ability, heterosis, heritability and genetic advance and gene effects of fifteen quantitative traits in muskmelon during 2003-2004. The study involved the evaluation of 49 hybrids along with their 14 parents to assess combining ability and estimation of heterosis over mid parent, better parent and commercial check. The combining ability studies indicated that the parents Punjab Sunheri, IIHR-615-5-2 and IIHR-616-2-3 could be utilized in breeding programme since they expressed highly significant and positive GCA effects for total fruit yield per vine. Evaluation of F1s hybrids indicated that the Kajri x IIHR-615-5-2, Pusa Madhuras x Durgapura Madhu, RM-43 x Durgapura Madhu and Kajri x Durgapura Madhu were found promising and these could be exploited for commercial purpose. Studies on heritability and genetic advance indicated the presence of non additive gene action for days to first male and female flower opening, days to first fruit harvest, vine length, number of branches per vine, TSS and total yield per vine, where heterosis can be exploited. Whereas other traits were under the control of additive gene action. Where simple selection can be done. To understand the nature and magnitude of gene effects six crosses were analyzed through generation mean analysis for 15 characters. The study indicated that traits such as days to first male and female flower opening, node at first female flower appeared, vine length, number of branches per vine, fruit length, TSS, number of fruits per vine and fruit yield were under the control of non additive gene effects. In order to exploit non additive gene effects development of hybrid is suggested involving the parents having high fruit quality traits. Among the hybrids Kajri x IIHR- 615-5-2 showed high per se performance with high heterotic effect which can be exploited for commercial purpose.
URI: http://www.erepo.iihr.ernet.in/handle/123456789/351
University in which they received their degree: University of Agricultural Sciences, Bangalore
Degree Level: Ph.D

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