Kanhaiya Lal Patel, G.L. Sharma and Nandan Mehta
Department of Horticulture, Indira Gandhi Krishi Viswavidyalaya,
Krishak Nagar, Raipur (C.G.) – 492012, India
Email:Lal.kanhaiya48@yahoo.in
Abstract: An experiment was carried out to identify suitable genotypes for commercial cultivation in Chhattisgarh. Sixty three genotypes of Dolichos bean were evaluated during kharif and Rabi season of 2009-10. Wide range of variability was observed for all the characters viz., leaf length, leaf width, inflorescence length, number of flower per inflorescence, number of pod per inflorescence, pod length, pod width, number of pod per plant, hundred seed weight and pod yield.The analysis of variance revealed that the high genotypic and phenotypic coefficient of variation were recorded for leaf length (cm), leaf width (cm), inflorescence length (cm), number of flower per inflorescence, pod length (cm), pod width (cm), number of pod per plant, hundred seed weight (g) and pod yield per plant (kg). It was also revealed that relative magnitude of phenotypic coefficient of variation was higher than the genotypic coefficient of variation under the study. Higher heritability coupled with high genetic advance as percent of mean were observed for pod length followed by pod width, length of inflorescence, hundred seed weight, number of flower per inflorescence and number of pods per inflorescence. Correlation and path analysis revealed that number of pod per plant influenced the green pod yield per plant (kg) with high direct effect and significant positive correlation. Through D2 analysis, all the genotype could be grouped into six clusters and inflorescence length, number of pod per inflorescence, number of pod per plant and green pod yield per plant were found to be major characters
Keywords: Genetic divergence, Correlation, Path analysis, D2 analysis, Dolichos bean
REFERENCES
Baswana, K.S., Pandita, M.L., Partap, P.S. and Dhankhar, B.S. (1980). Genetic divergence for yield and its components in Indian bean (Dolichos lablab var. lignosus L.). Haryana J. Hort. Sci., 9 (3/4):, 184-187.
Borah, H.K. and Khan, A.K.F. (2001). Genetic divergence in fodder cowpea (Vigna unguiculata (L.) Walp.). Madras Agri. J., 88(10/12): 625-628.
Golani, I.J., Mehta, D.R., Naliyandhara, Patel, R.K.and Kanzariya, M.V. (2007). Genetic variability, correlation and path analysis for green pod yield and its characters in Hyacinth bean. Orissa journal of Horticulture. 35(1):71-75.
Gupta, P.N., Kochhar, S. (1995). Significance of vegetable crops germplasm in relation to cropping pattern and climatic changes. In R.S. Rana, P.N. Gupta, M. Rai and S. Kochhar (eds.). Genetic Resources of Vegetable Crops: Management, Conservation and Utilization. NBPGR, New Delhi, p: 40 – 49.
Joshi, S.N. (1971). Studies on genetic variability for yield and its components in Indian beans, Dolichos lablab var. lignosus. Madras Agric. J., 58:367-371.
Nath, P. (1976). Vegetable for the Tropical Region, ICAR, New Delhi.
Pandey, R.P., Assawa, B.M. and Assawa R.K. (1980). Correlation and path-coefficient analysis in Dolichos lablab L. Indian J. Agri. Sci., 50(6):481-484.
Rai, N., Singh, P. K., Verma, A., Lal, H., Yadav, D. S. and Rai, M (2008). Multivariate characterization of Indian bean [Lablab purpureus (L.) Sweet] genotypes. Ind. J. Pl. Gen. Res. 21 (1): 42-45.
Rao, C.R. (1952). Advance statistical method in Biometrics Research. John Willey & Sons, New York.