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GENETIC ARCHITECTURE OF RADIATION INDUCED VARIABILITY FOR QUANTITATIVE TRAITS IN CHICKPEA (CICER ARIETINUM L.)

Article Id: ARCC862 | Page : 155 - 165
Citation :- GENETIC ARCHITECTURE OF RADIATION INDUCED VARIABILITY FOR QUANTITATIVE TRAITS IN CHICKPEA (CICER ARIETINUM L.).Legume Research.2011.(34):155 - 165
Anju Pathania*, B.C. Sood and S. Bhateria anju_pathania@rediffmail.com
Address : Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishwadhyalya, Palampur – 176 062, India

Abstract

Seed samples of two varieties of chickpea namely HPG-17and Himachal chana-1 were irradiated with 30kR, 40kR, 50kR doses of gamma – rays to induce variability for yield and related traits. Significant shift in mean values for quantitative traits was observed in M2 and M3 generations. Genetic parameters were higher for seed yield and related traits in M3 generation of HPG-17 and M2 generation of Himachal chana-1. The magnitude of parameters of variability was more in 30kR treated population of HPG-17 and 40kR treated population of Himachal chana-1. High heritability coupled with high genetic advance observed for plant height, biological yield and seed yield per plant in HPG-17 and for pod bearing branches per plant in Himachal chana-1, indicate that these traits are likely to respond effectively to phenotypic selection. Significant positive additive and dominance effects were observed for majority of traits studied in 40kR and 50kR treated populations of HPG-17 and for 30kR and 40kR treated populations of Himachal chana-1.

Keywords

Cicer arietinum L; Gamma-rays; Induced additive effect Induced dominance effects; Mutation;
Quantitative traits
Induced variations.

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