Asian Journal of Bio Science

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Variability Studies in Castor Germplasm Accessions (Ricinus communis L.)


Affiliations
1 Department of Plant Breeding and Genetics, Tamil Nadu Agricultural University,agricultural College and Research Institute, Madurai, M.S., India
     

   Subscribe/Renew Journal


A total of 45 castor germplasm were studied for the variability for nine biometrical traits and four physiological traits. The study was conducted during Kharif season of 2011-12 at Agricultural College and Research Institute, Madurai. The data were subjected to analysis of variance and it was found that the germplasm differed significantly for all the characters studied. The estimates of genotypic and phenotypic variances were worked out for all the characters. While considering the biometrical traits high GCV estimates were observed for number of capsules in primary spike, single plant yield, plant height, primary spike length. In the present investigation both biometrical and physiological characters showed high heritability indicating low environmental effect and high capacity of the characters for the transmission to subsequent generation.

Keywords

Castor, Variability, GCV, PCV, Germplasm Accessions
Subscription Login to verify subscription
User
Notifications
Font Size


  • Falconer, D.S. (1967). Introduction to quantitative genetics 4 th Ed. Longman, NEWYORK (U.S.A.).

  • Lush, J.L. (1940). Intra-sire correlation and regression of offspring on dams as a method of estimating heritability of characters. Proc. Amer. Soc. Animal Prodn., 33: 293-301.

  • Omkarappa,T., Hanumanthappa, D.C., Kumar Ajaj, J. and Ajay (2010). Correlation and path analysis of yield attributing traits in hybrids of castor, Ricinus communis L. J. Oilseeds Res., 27:72-74.

  • Panse, V.G. and Sukhatme, P.V. (1961). Statistical methods for agricultural workers, 2nd Ed., ICAR, NEW DELHI (INDIA) 227 pp.

  • Patel, J.R., Saiyed, M.P., Patel, C.G., Bhatt, R.K. and Bhatt, V.K. (2010). Genetic divergence in castor (Ricinus communis L.). Internat. J. agric. Sci., 6(1): 113-115.

  • Rajesh,V., Rao, P. Venkata Ramana, Gouri Shankar, V., Reddy, A.Vishnuvardhan and Pavani, J.V.P. (2010). Variability, heritability and genetic advance in castor, Ricinus communis L. J. Oilseeds Res., 27:90-91.

  • Sarwar, G. and Botta Choudhry, M. (2008). Evaluation of castor (Ricinus Communis L.) induced mutants for possible selection in the improvement of seed yield. Spanish J. agric. Res., 6(4):629-634

  • Sunderavelpandian, K. (2003). Genetic variability studies and in vitro response in castor (Ricinus communis L.). M.Sc. Thesis, Tamil Nadu Agricultural University, Madurai, T.N. (INDIA).


Abstract Views: 441

PDF Views: 0




  • Variability Studies in Castor Germplasm Accessions (Ricinus communis L.)

Abstract Views: 441  |  PDF Views: 0

Authors

T. Radhamani
Department of Plant Breeding and Genetics, Tamil Nadu Agricultural University,agricultural College and Research Institute, Madurai, M.S., India
R. Ushakumari
Department of Plant Breeding and Genetics, Tamil Nadu Agricultural University,agricultural College and Research Institute, Madurai, M.S., India

Abstract


A total of 45 castor germplasm were studied for the variability for nine biometrical traits and four physiological traits. The study was conducted during Kharif season of 2011-12 at Agricultural College and Research Institute, Madurai. The data were subjected to analysis of variance and it was found that the germplasm differed significantly for all the characters studied. The estimates of genotypic and phenotypic variances were worked out for all the characters. While considering the biometrical traits high GCV estimates were observed for number of capsules in primary spike, single plant yield, plant height, primary spike length. In the present investigation both biometrical and physiological characters showed high heritability indicating low environmental effect and high capacity of the characters for the transmission to subsequent generation.

Keywords


Castor, Variability, GCV, PCV, Germplasm Accessions

References