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A robust non-parametric stability measure to select stable genotypes

Indian Agricultural Research Journals

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Title A robust non-parametric stability measure to select stable genotypes
 
Creator KUMAR, PRAKASH
PAUL, A K
PAUL, RANJIT KUMAR
RAJU, BMK
RATHOD, SANTOSHA
RAY, MRINMOY
RANJAN, RAJEEV
ROY, HIMADRI SHEKHAR
YEASIN, MD
 
Subject Environmental variations, Genotype × Environment, Interaction, Non-parametric stability analysis, Static and dynamic stability concepts
 
Description Climate change has a considerable influence on agricultural output, raising farmers’ production risk. Nevertheless, the risk can be mitigated by selecting stable genotypes. In countries such as India, where significant proportions of farmers are smallholders or operate on marginal land, the minimization of risk is of paramount importance. Existing methods of stability measures often result in low-yielding varieties. Consequently, there is a need to develop more effective stability strategy to solve this problem without reducing yield. In light of the preceding, the Rank Based Stability Index (RSI) has been proposed for choosing genotypes based on the rank of interaction residuals to mitigate the influence of climatic changes without compromising yield. Through statistical analyses, the RSI approach demonstrates its ability to discern stable genotypes resilient to environmental fluctuations. By evaluating genotype performance across multiple environments and seasons, RSI identifies cultivars with consistent yield performance, thus offering a valuable tool for enhancing crop resilience and ensuring food security. The effectiveness of the proposed RSI approach for selecting stable genotypes from groundnut (Arachis hypogaea L.) data has been notably demonstrated in comparison to other methods. RSI emerges as a promising methodology for genotype selection in groundnut, offering a robust framework for mitigating the influence of climatic changes on crop yields.
 
Publisher Indian Council of Agricultural Research
 
Date 2024-09-11
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJAgS/article/view/138170
10.56093/ijas.v94i9.138170
 
Source The Indian Journal of Agricultural Sciences; Vol. 94 No. 9 (2024); 1007–1012
2394-3319
0019-5022
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJAgS/article/view/138170/55817
 
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