GENETIC ARCHITECTURE OF YIELD, HARVEST INDEX AND RELATED TRAITS IN WHEAT

The present investigation was carried out using 16 diverse lines and three promizing testers to find out the genetic architecture of harvest index and other related traits. Additive gene effects were found to be more important for grain yield per plant, biological yield, harvest index, grains per sp...

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Bibliographic Details
Published in:Cereal research communications 1981-01, Vol.9 (1), p.31-37
Main Authors: SRIVASTAVA, R. B., LUTHRA, O.P., SINGH, D., GOYAL, K. C.
Format: Article
Language:English
Subjects:
Combining ability
Crop harvesting
Flag leaf
Genes
Grains
Leaf area index
Phenotypic traits
Spikelets
Tillers
Wheat
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Summary:The present investigation was carried out using 16 diverse lines and three promizing testers to find out the genetic architecture of harvest index and other related traits. Additive gene effects were found to be more important for grain yield per plant, biological yield, harvest index, grains per spike, tillers per plant and flag leaf area whereas spike length, spikelets per spike, grain weight per spike and 1000-grain weight were under control of non-additive gene effects. Heritability and genetic advance were observed high for yield, biological yield and harvest index. WH 147 and HD 2009 were the good general combining males and among females S 331 Nor 67 followed by Papaju were the best general combiners for most of the important traits under study. Cross Papaju × WH 147 for yield and its components while S 331 Nor 67 × HD 2009 for tiller per plant and 1000-grain weight were found best on the basis of s.c.a. effects and per se performance. The implementation of results has been discussed.
ISSN:0133-3720
1788-9170