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Analysis of genetic variability and genotype × year interactions on kernel zinc concentration in selected Indian and exotic maize (Zea mays) genotypes

Indian Agricultural Research Journals

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Title Analysis of genetic variability and genotype × year interactions on kernel zinc concentration in selected Indian and exotic maize (Zea mays) genotypes
 
Creator GULERIA, S K
CHAHOTA, R K
KUMAR, P
KUMAR, A
PRASANNA, B M
HOSSAIN, F
AGRAWAL, P K
GUPTA, H S
 
Subject Genotype × year, Maize, Stability, Variability, Zinc
 
Description Analysis of genetic variability for kernel zinc (Zn) concentration was undertaken on 81 maize (Zea mays L.) genotypes, including 13 inbreds from CIMMYT-HarvestPlus, in this study. Kernel Zn concentration varied significantly with a range of 3.81 to 35.83 mg/kg across three years of evaluation (2006-2008). Among the genotypes evaluated during 2006, IML 289 showed highest kernel Zn concentration (35.83 mg/kg), followed by HP 12 (31.69 mg/kg), HP 35-6 (29.02 mg/kg), HP 1 (27.24 mg/kg) and IML 119 (25.77 mg/kg). During kharif 2007, nine genotypes recorded kernel Zn more than 25 mg/kg. Among the landrace accessions, IML 312 (30.30 mg/kg), IML 185 (28.56 mg/kg), IML 288 (26.34 mg/kg), IML 119 (25.88 mg/kg) and IML 390 (25.75 mg/kg) were found promising, while the inbreds BAJIM 06-5 (28.72 mg/kg), CM 145 (25.89 mg/kg), CM 127 (25.45 mg/kg) and BAJIM 06-12 (25.44 mg/kg) recorded kernel Zn concentration. Among the inbreds evaluated during 2008, BAJIM 06-1 (24.74 mg/kg) was identified as the best genotype, followed by V 336(23.36 mg/kg), CM 145 (22.18 mg/kg), CM 140 (21.09 mg/kg), V 340 (20.56 mg/kg), V 348 (20.17 mg/kg) and BAJIM06-6 (20.02 mg/kg). The study revealed significant genotype × year interaction for kernel Zn concentration. Stability analysis revealed that variances due to genotype, year + genotype × year, year (linear) and pooled deviation were significant. Taking into consideration of regression coefficient and deviation from linearity, V 336, VQL 1, V 334 and CM 139 could be identified as stable genotypes for kernel Zn concentration across the years.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-08-08
 
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/31987
 
Source The Indian Journal of Agricultural Sciences; Vol 83, No 8 (2013)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/31987/14335
 
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