Legume Research

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Legume Research, volume 35 issue 1 (march 2012) : 59 - 63

INDUCED POLYGENIC VARIABILITY AND SELECTION STRATEGY FOR SEED YIELD IN GRASSPEA (Lathyrus sativus L.)

Swapan K. Tripathy, D. Lenka, Rajesh Ranjan, K. Pradhan
1College of Agricultural, Orissa Univ. of Agril. and Technology, Bhubaneswar-751003, India.

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Cite article:- Tripathy K. Swapan, Lenka D., Ranjan Rajesh, Pradhan K. (2024). INDUCED POLYGENIC VARIABILITY AND SELECTION STRATEGY FOR SEED YIELD IN GRASSPEA (Lathyrus sativus L.). Legume Research. 35(1): 59 - 63. doi: .

ABSTRACT

Genetic variation induced in grasspea cv. Dhenkanal local following mutagenesis varied with mutagens, generations and characters studied. Number of seeds, pods and seed yield/ plant were found to be docile for induced genetic variation. Treatments e.g., 40kR - g -ray + 0.01% NG and
40kR g -ray + 0.2% EMS + 0.01% NG induced appreciable genetic variation for seed yield with widest range, comparable mean value, high GCV, h2(bs) and GA compared to control in M2 and M3. Whereas, 0.02-0.03% NG with similar consideration had higher genetic variability in M3 than M2 indicating release of additional variability and further scope for selection of high yielding mutants. In contrast, 0.01% NG might be amenable for direct selection as it had the highest mean seed yield per plant along with low GCV, h2(bs) and GA.

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