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Triple test cross analysis for yield and yield components in rice (Oryza sativa)*

Indian Agricultural Research Journals

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Title Triple test cross analysis for yield and yield components in rice (Oryza sativa)*
 
Creator RAM, T
DEEN, RAM
MISHRA, B
PADMAVATHI, G
RAMA PRASAD, A S
VIRAKTAMATH, B C
 
Subject Rice; Triple test cross; Yield; Yield components
 
Description The additive, dominance and epistatic components of genetic variations for yield and yield traits were analyzed using 39 triple test cross progenies derived by crossing 'IR 50', 'C 14-8' and the F, ('IR 50' x 'C 14-8') with 13 diverse varieties, resistant1 tolerant to different biotic and abiotic stresses. The estimate of total epistasis was non-significant for all the traits while partitioning of epistasis indicated the involvement of i type (additive x additive) of epistasis for plant height, number of grainslpanicle and kernel length. The magnitude of additive variance was higher than dominance for plant height, number of grains/panicle, 100- grain weight, grain yield and kernel length. While higher value of dominance variance was observed for rest of the traits. The predominance of additive and dominance type of gene action for yield and some of the important yield traits observed in the present findings can be exploited effectively following random intermating in segregating generations and selection in later generation.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2011-01-12
 
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/3424
 
Source The Indian Journal of Agricultural Sciences; Vol 77, No 6 (2007)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/3424/1441
 
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