What question did this study set out to answer?

To assess genetic divergence and quantify the direct and indirect contributions of yield-related traits to grain yield in elite rice genotypes.

May 10, 2023Journal of Cereal ResearchOpen Access

Genetic diversity studies in selected elite genotypes and released varieties of Rice

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KBKD BhoiteZoological Survey of India

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Implication

Genetic divergence analysis reveals high variation and yield-determining traits across fifty elite rice genotypes, suggesting optimal parental combinations for breeding programs.

Key Points

To assess genetic divergence and quantify the direct and indirect contributions of yield-related traits to grain yield in elite rice genotypes.
Evaluated 50 selected elite genotypes and released varieties of rice (N=50) for 10 yield and yield-contributing characters during the kharif-2020 season in Igatpuri, India.
Conducted path coefficient analysis, trait correlation assessments, and Mahalanobis D² cluster analysis to classify genetic divergence.
Test weight, spikelet fertility, number of panicles per plant, and number of spikelets per panicle showed significant positive direct effects and significant positive correlations with single-plant grain yield.
The 50 genotypes separated into eight distinct clusters, with Cluster II comprising the most genotypes (n=19) and Cluster V demonstrating the greatest intra-cluster distance (13.15).
Inter-cluster divergence peaked between clusters VII and VIII, followed by clusters I and VI, identifying these pairings as optimal targets for generating wide genetic recombination.

Cite This Study

KD Bhoite (2023) studied this question.

synapsesocial.com/papers/6a6fcfd7f44fa9f079dd4e73 https://doi.org/10.25174/2582-2675/2023/126967

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Implication

Genetic divergence analysis reveals high variation and yield-determining traits across fifty elite rice genotypes, suggesting optimal parental combinations for breeding programs.

Genetic diversity studies in selected elite genotypes and released varieties of Rice

Discussion

Member takes

Implication

Key Points

Cite This Study

Genetic diversity studies in selected elite genotypes and released varieties of Rice

Discussion

Member takes

Implication

Key Points

Cite This Study

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