Exploring Genetic Diversity in Maturity Duration among Pigeonpea Genotypes Grown under Off-season (Rabi) Conditions

Yaksha, K and Shivani, D and Gangashetty, P I and Yogendra, K and Jaba, J and Choudhary, S (2025) Exploring Genetic Diversity in Maturity Duration among Pigeonpea Genotypes Grown under Off-season (Rabi) Conditions. Journal of Advances in Biology & Biotechnology, 28 (7). pp. 807-813. ISSN 2394-1081

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Abstract

Pigeonpea (Cajanus cajan L. Millspaugh) is an important legume crop cultivated in rainfed areas due to its adaptability and soil-enriching properties. This study evaluated 250 genotypes from the PI-GAP (Pigeonpea International Genome-Wide Association Panel) for days to maturity under rabi season at ICRISAT, Patancheru. Maturity ranged from 92 to 209 days, with a mean of 141 days. Genotypes were grouped into five maturity classes, with most falling in the early category. Analysis of variance showed significant genetic effects (p < 0.001), supported by moderate GCV and PCV, high heritability (97.63%), and high genetic advance. A strong positive correlation (r = 0.78) was observed between plant height and days to maturity. Principal Component Analysis revealed that PC1 explained 88.64% of the total variance. These results highlight the potential of early and late maturing lines for target-specific pigeonpea breeding under diverse cropping systems.

Item Type:	Article
Divisions:	Global Research Program - Accelerated Crop Improvement
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Days to maturity, PCA, stability, selection, variability
Subjects:	Mandate crops > Pigeonpea Others > Genetics and Genomics Others > Entomology
Depositing User:	Mr Nagaraju T
Date Deposited:	05 Dec 2025 03:50
Last Modified:	05 Dec 2025 03:50
URI:	http://oar.icrisat.org/id/eprint/13401
Official URL:	https://hal.science/hal-05160664/
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	We sincerely thank International Crops Research Institute for Semi-Arid Tropics and ACI-Pigeonpea Breeding for providing an opportunity for carrying out the research. We also extend our gratitude to Dr. Shruthi Venna Belliappa, Mr. Naresh Bomma and technical staff of Pigeonpea Breeding, ICRISAT.
Links:	Google Scholar

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