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Genotype × Environment Interactions for Oil Content in Peanut and Stable High-Oil-Yielding Sources

OAR@ICRISAT

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Relation http://oar.icrisat.org/9776/
http://dx.doi.org/10.2135/cropsci2016.01.0005
10.2135/cropsci2016.01.0005
 
Title Genotype × Environment Interactions for Oil Content in Peanut and Stable High-Oil-Yielding Sources
 
Creator Janila, P
Manohar, S S
Patne, N
Variath, M T
Nigam, S N
 
Subject Groundnut
Oil seeds
Genetics and Genomics
 
Description Peanut (Arachis hypogaea L.) genotypes with
superior and stable agronomic performance
and high oil content were identified from testing
of 160 advanced breeding lines over six seasons.
The study revealed significant genotype
and genotype  environment (G  E) interaction
determining oil and protein content; shelling
outturn; and pod, kernel, and oil yield in peanut.
The variability among genotypes was high
across the environments for pod yield (546–
7382 kg ha−1), oil yield (301–2742 kg ha−1), oil
content (37–60%), 100-seed weight (21–127 g),
and protein content (19–31%). The GGE biplot
technique revealed that ICGV 05155 is a stable
genotype for oil yield with an average oil yield
of 1886 kg ha−1. ICGV 05155 recorded highest
average pod yield of 4928 kg ha−1, kernel yield
of 3420 kg ha−1, and oil content of 55.1%. ICGV
06049, ICGV 06041, ICGV 06420, and ICGV
03043 were other genotypes with stable oil yield.
Simple regression showed significant contributions
of oil content (18–54%), and kernel yield
(92–99%) to oil yield across the environments.
Simultaneous improvement of kernel yield and
oil content is feasible in breeding programs, as
kernel yield had no negative association with oil
content. The high oil content genotypes, ICGV
05155, ICGV 06049, ICGV 06041, ICGV 06420,
and ICGV 03043, with stable oil yield were promoted
to multilocation adaptive trials required
for their release for cultivation and used as parents
in breeding programs and development of
mapping population to identify quantitative trait
loci (QTL) governing oil content.
 
Publisher Crop Science Society of America
 
Date 2016
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/9776/1/crop%20science%20paper%20high%20oil%20in%20groundnut.pdf
Janila, P and Manohar, S S and Patne, N and Variath, M T and Nigam, S N (2016) Genotype × Environment Interactions for Oil Content in Peanut and Stable High-Oil-Yielding Sources. Crop Science, 56. 01-10. ISSN 0011-183X