Journal of Environmental Biology

Ethyl methane sulphonate induced genetic variability and heritability in macrosperma and microsperma lentils

Aman Rana and I.S. Solanki*

Department of Plant Breeding and Genetics, College of Agriculture, Chaudhary Charan Singh Haryana Agricultural University, Hisar-125 004, India

*Corresponding Authour E-mail : solanki255@rediffmail.com

Publication Data

Paper received:

11 September 2014

Revised received:

15 February 2015

Accepted:

20 March 2015

Abstract

Dry and healthy seeds of two lentil cultivars, LH90-54 (macrosperma) and LH89-48 (microsperma) were treated with three doses of ethyl methane sulphonate (0.1, 0.2 and 0.4 %). In both the cultivars, all the M₁ plants with sufficient seed from each treatment and control were taken to raise independent M₂ plant progenies. Wider range of means in both positive and negative directions along with overall positive shift in mean for all the polygenic traits, except pod-initiation height and 100-seed weight, were observed in different treatments in M₂ generation. In both the cultivars, medium dose induced highest amount of variation. The estimates of variance, GCV and PCV for different polygenic traits increased significantly over control values in all the treatments of both the cultivars. Higher estimates of heritability and genetic advance in M₂ population indicated tremendous scope for the improvement of seed yield and its component traits through selection in the mutagenized material.    

 Key words

Ethyl methane sulphonate, Genetic advance, Heritability, Lentil

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