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Genetic variability, association and diversity analysis of yield and its component traits in rice (Oryza sativa) germplasm

Indian Agricultural Research Journals

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Title Genetic variability, association and diversity analysis of yield and its component traits in rice (Oryza sativa) germplasm
 
Creator PATHAK, VAIBHAV
PRASUNA, C H
UMAKANTH, B
SUREKHA, K
SUBBARAO, L V
PADMAVATHI, G
 
Subject Correlation, Genetic divergence, Genetic variability, Heritability, Rice
 
Description An experiment was conducted during winter (rabi) season of 2022 at ICAR-Indian Institute of Rice Research, Hyderabad, Telangana to evaluate extent of genetic variability, heritability, diversity and the relationship between yield and its component traits in a collection of 60 rice germplasm accessions. Results showed that germplasm accessions exhibited ample genetic variability and diversity for yield traits. Based on per se performance, inter crosses between the genotypes IC458483 with high grain yield, IC210775 with more panicle length, IC75919 with high 100-grain weight, IC75980 with more productive tillers and IC75965 with high protein content could produce positive transgressive segregants for improving respective traits. Plant height, total and effective tillers, grain yield and 100-grain weight traits which exhibited the highest heritability and genetic advance could be vital for selection in hybridization programmes. Crossing among genotypes of diverse clusters specifically VI, VII and VIII is suggested as this could create a broad variation useful for selecting genotypes with both high yield and long panicles.
 
Publisher Indian Council of Agricultural Research
 
Date 2024-07-03
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJAgS/article/view/146835
10.56093/ijas.v94i7.146835
 
Source The Indian Journal of Agricultural Sciences; Vol. 94 No. 7 (2024); 786–790
2394-3319
0019-5022
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJAgS/article/view/146835/55026
https://epubs.icar.org.in/index.php/IJAgS/article/view/146835/55028
 
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https://creativecommons.org/licenses/by-nc-sa/4.0