Genetic Diversity among Advanced Breeding Lines for Yield and Yield Contributing Traits Along with Grain Micronutrients in Pearl Millet


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Genetic diversity among advance breeding lines

Authors

  • Rachana M UAS, Dharwad
  • B K Athoni
  • C D Soregaon
  • G. M. Sajjanar
  • A. H. Biradar

https://doi.org/10.59512/aaz.2023.62.2.4

Abstract

Studying about genetic diversity permits the classification of germplasm into heterotic groups, which is particularly important in development of varities and for hybrid breeding. The study was conducted to determine the magnitude of genetic diversity among 184 advanced breeding lines and four checks viz., ICMV-221 (NC), ICTP-8203 (NC), VPMV-9 (LC) and Dhanashakti (NC), were assessed using Augmented Block Design during kharif 2021-22 at two locations viz., Regional Agricultural Research Station, Vijayapur and Agricultural Research Station, Mudhol.

Genetic diversity study indicated that among various characters studied, iron content contributed the most to the total divergence. Based on D2 values, the advanced breeding lines were grouped into nine clusters. Among nine clusters, cluster I was the largest, with 78 lines, followed by cluster Ⅳ (36) and cluster II (31). Fe & Zn 115-2-1 (cluster VII) and WSBLT 59-2 (cluster V) had the greatest D2 distance, measured at 1091.086, HTRLT 2-2 (cluster VII) and WSBLT 59-2 (cluster V) placed second at 1051.169 and Fe & Zn 115-2-1 (cluster VII) and WSBLT 51-2 (cluster V) were third at 1043.287 D2 distance. The highly divergent pairs which were identified in the present study can be crossed for creating variability and isolating better ‘R’ lines as well as ‘B’ lines.

Key words: Diversity, Augumented design, iron content, grain yield, D2 distance and clusters

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References

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Submitted

2023-04-04

Published

2023-06-29

How to Cite

Genetic Diversity among Advanced Breeding Lines for Yield and Yield Contributing Traits Along with Grain Micronutrients in Pearl Millet: Genetic diversity among advance breeding lines. (2023). Annals of Arid Zone, 62(2), 121-126. https://doi.org/10.59512/aaz.2023.62.2.4
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