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Assessment of correlation and path analysis of hybrid rice parental lines in a multi-environment study (Oryza sativa L.)

Indian Agricultural Research Journals

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Title Assessment of correlation and path analysis of hybrid rice parental lines in a multi-environment study (Oryza sativa L.)
 
Creator Anuhya, Valluri
Sruthi, Kanneboina
Divyamani, Vasamsetti
Vasanthi, R P
Sundaram, R M
Dhandapani, Appavoo
Senguttuvel, P
Revathi, P
Kemparaju, K B
Hari Prasad, A S
 
Subject Correlation
path analysis
hybrid rice
multi environment
 
Description Correlation and path analysis are useful selection aids for the plant breeder to understand the complex interactions among various factors that influence crop growth and yield. The data were collected from a diverse set of 150 genotypes, consisting of 129 restorers, 15 maintainers and 6 checks in three different environments (Kharif 2021@ICAR-IIRR, Hyderabad, Kharif, 2021@ Agricultural College, Tirupati and Rabi 21-22@ICAR-IIRR, Hyderabad) on 10 different component traits. The analysis included three data sets along with their pooled values. All of the component traits demonstrated a positive correlation with single plant yield, either significant or non-significantly in environment wise analysis as well as in the pooled analysis.  The analysis revealed that certain traits, namely plant height, total number of tillers per plant, productive tillers per plant and spikelet fertility showed a significant positive correlation with single plant yield while the rest of the traits exhibited a positive non-significant correlation. Based on the results, plant height, biomass, and harvest index play a key role in determining final yield, as they have a strong positive correlation with single plant yield and exert positive direct effects on it. Therefore, prioritizing these traits during selection could be an effective approach for the indirect selection of increased grain yield.
 
Publisher Association of Rice Research Workers
 
Date 2024-03-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/OIJR/article/view/146606
 
Source ORYZA-An International Journal of Rice; Vol. 61 No. 1 (2024): March-2024
2249-5266
0474-7615
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/OIJR/article/view/146606/54232
 
Rights Copyright (c) 2024 Association of Rice Research Workers
http://creativecommons.org/licenses/by/4.0