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Genetics of economic traits and sex modification in bittergourd (Momordica charantia L.)

KrishiKosh

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Title Genetics of economic traits and sex modification in bittergourd (Momordica charantia L.)
Ph D
 
Creator SMARANIKA MISHRA
 
Contributor T.K. Behera
 
Subject developmental stages, genes, fruits, planting, additives, bitter gourd, genetics, dna, rapd, yields
 
Description T-8659
The phenotypic ratio of 3:1 (monoecious vs. gynoecious) in bitter gourd in the present
study confirmed the monogenic recessive inheritance of gynoecism trait. Further
investigation on gene action in the cross DBGy 201 x S-2 and DBGy 201x Pusa Do
Mausami by generation mean analysis revealed duplicate epistasis for most of the
traits including node at which 1st female flower appears, days to 1st flowering, days to
1st harvestable maturity, fruit length, fruit diameter, fruit weight and yield suggesting
the possibilities of obtaining transgressive segregants in later generations. More over
significant additive and non additive gene effects for traits like node at which 1st
female flower appears, days to 1st flowering, days to 1st harvestable maturity and fruit
diameter indicates use of reciprocal recurrent selection or bi-parental mating for
improvement of these traits. Non-additive gene action was found significant for
number of fruit per plant, fruit length and fruit weight and yield inferring heterosis
breeding as the best option for obtaining higher gain in these characters.
 
Date 2016-09-17T17:38:48Z
2016-09-17T17:38:48Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/77255
 
Format application/pdf
 
Publisher IARI, DIVISION OF VEGETABLE SCIENCE