Induction and Assessment of Genetic Variability for Yield and Yield Contributing Traits of Chickpea [Cicer Arietinum L.]

Wani, M.R. and Lone, M.A. and Sheikh, S.A. and et al, . (2012) Induction and Assessment of Genetic Variability for Yield and Yield Contributing Traits of Chickpea [Cicer Arietinum L.]. Journal of Plant Genomics, 2 (1). pp. 28-33.

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Genetic improvement for higher production and better quality has remained pivotal to agriculture. Lack of sufficient genetic variability for economically important traits is one of the reasons attributed for slow advancement in chickpea. Improvement in either single or few economic traits and quality characters can be achieved with the help of induced mutations within the shortest possible time. An experiment was conducted to evaluate the extent of biological damage in M1 and M2 generations along with genetic variability for yield and yield contributing traits in M3 and M4 generations of chickpea following mutagenesis with EMS and SA. The breeding behavior of the mutants was studied through M1-M4 generations. All the mutagenic treatments brought about dose dependent diminution in seed germination, pollen fertility and seedling growth in M1 and M2 generations. The reduction was more prominent in M1 than in M2 generation, indicating that some sort of recovery mechanism must be operating in the superseding period. A significant increase in mean values for pod bearing branches per plant, pods per plant, 100-seed weight (g) and total plant yield (g) was noticed in both M3 and M4 generations. Moreover, the magnitude of genotypic coefficient of variation, heritability and genetic advance for yield and its contributing components were recorded to be higher in the mutagenized population. Increase in mean values in conjunction with an augment in genetic variability advocate further possibilities of selecting more promising lines with high yield and genetic potential. The mutants isolated can be utilized in future as suitable genetic source material in breeding, genetic and functional genomics research.

Item Type: Article
Additional Information: The authors are indebted to the Chairman, Department of Botany, Aligarh Muslim University, Aligarh, India for providing necessary infrastructural support for carrying out hasslefree research experiments.
Uncontrolled Keywords: Chickpea, chemical mutagens, biological damage, genetic variability, yield components
Author Affiliation: Government Degree College (Boys), Anantnag- 192 102, J&K, India,Aligarh Muslim University, Aligarh- 202 002, UP, India,
Subjects: Crop Improvement
Divisions: Chickpea
Depositing User: Mr. SanatKumar Behera
Date Deposited: 06 Oct 2012 07:09
Last Modified: 06 Oct 2012 07:09
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