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Heterosis and Combining Ability Studies and Relationship Among Fruit and Seed Characters in Peanut

OAR@ICRISAT

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Relation http://oar.icrisat.org/1343/
http://dx.doi.org/10.3146/i0095-3679-16-1-4
 
Title Heterosis and Combining Ability Studies and Relationship Among Fruit and Seed Characters in Peanut
 
Creator Dwivedi, S L
Thendapani, K
Nigam, S N
 
Subject Agriculture-Farming, Production, Technology, Economics
 
Description F,.progenies from an 8 x 8 full diallel cross were studied for
the inheritance of h i t yield and fruit and seed characters
which are important in peanut (Arachis hypogaea L.) quality
breeding. Substantial genetic variaton was observed for most
characters among parents and crosses. Presence of significant
heterotic crosses for several characters was an indication of
genetic diversity present among the parental lines. Whereas
fruit and seed traits were controlled largely by additive genetic
effects and fruitdplant and fruit weighdplant by nonadditive
genetic effects, for shelling percentage both were equally important.
Estimates of general combining ability (gca) for ICGV
86564 was best for various fruit and seed traits. Other
genotypes with good gca were ICG 2379 and ICG 3043 for h i t
weight/plant and ICGV 87123 for shelling percentage. ICG
4906, ICG 7360, and ICGV 86564 showed significant maternal
effects for various traits. Significant maternal interaction effect
was evident for more than six traits in six crosses. A positive association
among fruit and seed traits, and of fruit weighdplant
with h i t number and with fruitheed lengfh and width should
result in progenies with larger fruidseed size coupled with increased
yields.
 
Date 1989
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/1343/1/PS_16%281%2914-20_1989.pdf
Dwivedi, S L and Thendapani, K and Nigam, S N (1989) Heterosis and Combining Ability Studies and Relationship Among Fruit and Seed Characters in Peanut. Peanut Science, 16 (1). pp. 14-20.