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Combining ability and heterosis analysis for yield traits in bread wheat (Triticum aestivum)

Indian Agricultural Research Journals

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Title Combining ability and heterosis analysis for yield traits in bread wheat (Triticum aestivum)
 
Creator SINGH, VIKRANT
KRISHNA, RAM
SINGH, SANJAY
VIKRAM, PRASHANT
 
Subject Combining ability; Diallel; Heterosis; Triticum aestivum
 
Description In order to realize the combining ability and heterosis of wheat, 21 hybrids were synthesised in a 7 × 7 diallel fashion excluding reciprocals. Analyses of combining ability and heterosis over mid parent (MP) as well as economic parent (HD 2733) were undertaken for yield and its component traits. The experiment was conducted in 2007–08 and 2008–09 at Crop Research Farm of CSAUA &T, Kanpur, UP. The results revealed that non-additive genetic variance played a predominant role in the inheritance of most of the traits. The best combinations mostly involved high × low and low × low general combiners for the characters under study. There was very rare case in which high × high general combiners were involved for best combinations. On the basis of gca and sca effects, 3 parents (i e K 7903, K 9465 and HUW 234) and 14 cross combinations (i.e. 5 top crosses namely HD 2733 × K 7903, HUW 234 × K 9423, HD 2285 × K 2021, HUW 234 × K 2021 and K 9423 × K 2021) were found good general and specific combiners for higher grain yield and also for various yield contributing traits, respectively.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-11-08
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/24960
 
Source The Indian Journal of Agricultural Sciences; Vol 82, No 11 (2012)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/24960/11616
 
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