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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2019, Volume : 7, Issue : 6
First page : (378) Last page : (385)
Article doi: : http://dx.doi.org/10.18782/2582-2845.7941

Genetic Variability for Yield, Physiological and Quality Traits in Novel Super-Early Pigeonpea (Cajanus cajan (L.) Millsp.)

H.B. Shruthi^1,2, A.J. Hingane^1*, M. Reddi Sekhar², C.V. Sameer Kumar³, J. Srivarsha¹, T.M. Bhosle¹, L. Prashanthi², B .V. Bhaskar Reddy², P. Sudhakar², Rathore A.¹ and Anil Kumar, V.^1
1Pigeonpea Breeding, International Crops Research Institute for
Semi-arid Tropics Patancheru, Telangana, 502324, India
²Department of Genetics and Plant Breeding, S.V. Agricultural College,
ANGRAU, Tirupati, Andhra Pradesh, 517501, India
³Pulses Breeding Division, Regional Agricultural Research Station,
Palem, PJTSAU, Hyderabad, Telangana
*Corresponding Author E-mail: h.anupama@cgiar.org
Received: 2.11.2019  |  Revised: 4.12.2019   |  Accepted: 17.12.2019  

 ABSTRACT

Super-early pigeonpea are novel genotypes that are reported to be photoperiod insensitive making it possible to grow it in non-traditional regions. Estimation of genetic parameters would be useful in developing appropriate selection and breeding strategies.  A study was conducted to evaluate 37 super-early pigeonpea genotypes to access the magnitude of variability and to  study heritable component of variation present in the   yield, physiological and quality traits.   The results revealed that traits leaf area duration between 60 DAS & maturity followed by leaf area & leaf area index at maturity, net assimilation between 60 DAS & maturity, leaf area index & leaf area at 60 DAS, leaf area duration between 60 DAS & maturity and plant height had high had higher  PCV and GCV values. In general, phenotypic coefficients of variation (PCV) estimates were higher than genotypic coefficients of variation (GCV) estimates for all the characters under study, but the difference was relatively small indicating that these characters were less influenced by the environment and selection to improve those traits might be effective.  High heritability combined with high genetic advance as a percent of mean was noted for  all the traits  except protein content conveying the governance of additive gene on trait expression. Anticipating these traits as selection index reaps competent  improvement in yield, physiological and quality traits in early maturing pigeonpea.

Keywords: Super-early pigeonpea, Variability, Heritability, Genetic advance

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Shruthi, H.B., Hingane, A.J., Sekhar, M.R., C.V. Sameer Kumar, C.V., Srivarsha, J., Bhosle, T.M., Prashanthi, L., Bhaskar Reddy, B.V., Sudhakar, P., Rathore, A., & Anil Kumar, V. (2019). Genetic Variability for Yield, Physiological and Quality Traits in Novel Super-Early Pigeonpea (Cajanus cajan (L.) Millsp.), Ind. J. Pure App. Biosci. 7(6), 378-385. doi: http://dx.doi.org/10.18782/2582-2845.7941