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Genetic variability and trait association for grain yield in barley(Hordeum vulgare L.): Barley variability, correlation, and path coefficient analysis

Indian Agricultural Research Journals

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Title Genetic variability and trait association for grain yield in barley(Hordeum vulgare L.): Barley variability, correlation, and path coefficient analysis
 
Creator Patial, Madhu
Kumar, Manoj
Bishnoi, Santosh Kumar
Pal, Dharam
Pramanick, Kallol Kumar
Shukla, Arun Kumar
Gandhi, Silky
 
Subject Barley
Heritability
Correlation
Path analysis
Variability
 
Description For yield enhancement, it is primarily important to know and predict the nature of variability available for the inter-related traits. Therefore, study was conducted to know the variability available and to comprehend the correlation among different traits for grain yield in barley accessions. Thirty-two barley accessions including two checks were sown in randomized block design with three replications at ICAR-IARI, Regional Station, Shimla, and data on seven traits viz., days to maturity, plant height, spike length, grains/spike, tillers/meter, 1000-grain weight and grain yield were recorded. Sufficient genetic variability was observed among the barley lines used for the studied traits except for tillers/m. High heritability was observed for 1000 grain weight, days to maturity and plant height suggesting possible improvement of these three agronomic traits. The value of genetic advance as percent of mean was high coupled with high broad sense heritability for 1000 grain weight highlighting that the character is governed by additive genes and selection may be beneficial for such trait. Based on the correlation results at genotypic level, tillers/m (0.93) and 1000 grain weight (0.23) had higher correlation with seed yield which could be considered important traits for yield enhancement in barley. At genotypic level, 1000 grains weight showed direct positive effect on grain yield (0.22) with significant positive genotypic correlation coefficient of 0.24. The traits, spike length (4.05) followed by plant height (2.87) and days to maturity (2.14) also showed high positive direct effects but values of genotypic correlations were negative.
 
Publisher Society for Advancement of Wheat and Barley Research
 
Date 2024-01-08
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/JWR/article/view/133530
 
Source Journal of Cereal Research; Vol. 15 No. 2 (2023)
2582-2675
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/JWR/article/view/133530/54170
 
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