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ESTIMATION OF COMPONENTS OF GENETIC VARIANCE IN MAIZE (ZEA MAYS L.)

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Title ESTIMATION OF COMPONENTS OF GENETIC VARIANCE IN MAIZE (ZEA MAYS L.)
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Creator Narendra Kumar, VN Joshi and MC Dagla
 
Subject Additive variance Dominance variance Dominance ratio Full sib and Half sib family
 
Description Not Available
A total 256 full sib progenies (64 half sib families) of a large random mating heterozygous population of maize
composite Mahidhawal were evaluated in two environments consisting of two different levels of fertility viz., (i) The estimate of additive variance for grain yield per plant was positive and significant in E2 2 and pooled analysis while it was positive but non-significant in E. This suggested additive variance is more important in determining grain yield under low N. Dominance variance for grain yield per plant additive variance and dominance variance contribute significant role in expression of total genetic variability for seed yield and other traits. Additive x environments interaction components were non-significant for all the traits In contrast, dominance x environments interaction components were positive significant for days to 50% tasseling, days to 50% silking, 100 - grain weight, grain yield per plant and stover yield per plant. Study of dominance ratio revealed that the genes responsible for expression of majority of traits including grain yield per plant showed complete dominance to over dominance
Not Available
 
Date 2018-12-17T05:56:26Z
2018-12-17T05:56:26Z
2013-03-04
 
Type Research Paper
 
Identifier The Bioscan
0973-7049
http://krishi.icar.gov.in/jspui/handle/123456789/16024
 
Language English
 
Relation Not Available;
 
Publisher NATIONAL ENVIRONMENTALISTS ASSOCIATION, INDIA.