Induced Genetic Variability through Physical and Chemical Mutagens in M2 Generation of Greengram.

Autor: Sarma, Akashi, Dhole, V. J., Bhattacharjee, A., Das, P., Sarma, D., Bordoloi, D.
Předmět:
Zdroj: Legume Research: An International Journal; Nov2022, Vol. 45 Issue 11, p1357-1361, 5p
Abstrakt: Uniform and healthy seeds of green gram cv. Pratap (SG-1) were treated with two mutagens, gamma rays (physical mutagen) and EMS (chemical mutagen) alone and in combination. The two hundred forty M1 progenies were laid in randomized block design with three replications during Kharif, 2017 to raise M2 generation. Analysis of variance discloses significant differences among the treatments for all the eight characters studied. It was observed that in general, the combination dose, i.e., 200 Gy+0.2% EMS gave superior results in almost all the yield attributing characteristics. High heritability coupled with high genetic advance was recorded for seed yield per plant, which indicates the predominance of additive gene action. Number of pods per plant followed by pod length showed high significant positive correlation with seed yield per plant. The character number of pods per cluster had shown positive correlation with seed yield per plant, but path analysis revealed its negative direct effect on seed yield. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index