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Satnam Singh Nagar Pradeep Kumar S.R. Vishwakarma Gyanendra Singh B. S. Tyagi

Abstract

A study was conducted for estimating genetic variability and characters association for eleven yield components using 169 genotypes (13 parents, 78 F1 and 78 F2) of bread wheat through half-diallel mating design during rabi season 2012-13 and 2013-14. The genetic variability, heritability in broad sense, genetic advance, correlation coefficients and path analysis were carried out for the assessment of genotypes through eleven yield component traits namely; days to 50% flowering, days to maturity, plant height, spike length, number of effective tillers per plant, number of grains per spikelet, number of grains per spike, 1000-grain weight, biological yield per plant, harvest index and grain yield per plant. Analysis of variance showed significant differences (at1% level of significance) for all the traits under study in both the generations (F1 and F2). The phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) were high for plant height followed by number of effective tillers per plant, biological yield per plant, grain yield per plant, while high heritability coupled with high genetic advance were recorded for plant height and spike length in both F1 and F2 generations, respectively. Grain yield per plant was positively and significantly associated with a number of effective tillers per plant, spike length, number of grains per spike, 1000-grain weight, biological yield per plant and harvest index while significantly but negatively associated with plant height. Path analysis revealed that the traits namely biological yield per plant, number of effective tillers per plant, number of grains per spike, plant height and harvest index exhibited positive direct effects on grain yield at both phenotypic and genotypic level in both generation (F1 and F2). These results, thereby suggests that yield improvement in breads wheats could be possible by emphasizing these traits while making selections in early generations.

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Keywords

Correlation, Heritability, Genetic variability, Path analysis and Yield components

References
Al-Jibouri, H.A., Miller, P.A. and Robinson, H.F. (1958). Genotypic environment variances in an upland cotton cross of inter-specific origin. Agronomy Journal, 50: 633-637.
Anonymous (2016). Progress Report of all India Coordinated Wheat and Barley Improvement Project, 1-5 pp G. P. Singh (Ed). Directorate of Wheat Research, Karnal.
Anonymous (2017). Annual Report 2016-17, ICAR-Indian Institute of Wheat & Barley Research, Karnal-132001, Haryana, India.
Banerjee, J., Rawat, R.S. and Verma, J.S. (2006). Stability analysis in bread wheat (Triticum aestivum L. em. Thell) and duram wheat (T. durum L.) genotypes. Indian Journal of Genetics and Plant Breeding 66 (2): 145–6.
Burton, G.W. and De Vane, E.W. (1953). Estimating heritability in tall fescue (Festucaarundinacea) from replicated clonal material. Agronomy Journal, (45): 478-481.
Crumpacker, D.W. and Allard, R.W. (1962). A diallel cross analysis of heading date in wheat. Hilgardia, 32: 275-318.
Hristov, N., Mladenov, N., Kondic, S.A., Marijanovic, J.A., Jockovic, B. and Jacimovic, G. (2011). Effect of environmental and genetic factors on the correlation and stability of grain yield components in wheat. Genetika, 43(1): 141–52.
Khan, M.H. and Dar, A.N. (2010). Correlation and path coefficient analysis of some quantitative traits in wheat. African Crop Science Journal, 18(1): 9–14.
Kumar Pradeep, Singh Gyanendra, Kumar Sarvan, Kumar Anuj and Ojha Ashish (2016). Genetic analysis of grain yield and its contributing traits for their implications in improvement of bread wheat cultivars. Journal of Applied and Natural Science, 8(1): 350–357.
Kumar Sandeep, Kumar Pradeep and Kerkhi S.A. (2017). Genetic analysis for various yield components and gluten content in bread wheat (Triticum aestivum L). Journal of Applied and Natural Science, 9(2): 879-882.
Meena, H.S., Kumar, D. and Prasad, S.R. (2014). Genetic variability and character association in bread wheat (Triticum aestivum). Indian Journal of Agricultural Sciences, 84 (4): 487–91.
Narwal, N. K., Verma, P. K. and Narwal, M. S. (1999). Genetic variability, correlation and path coefficient analysis in bread wheat in two climatic zones of Haryana. Agriculture Science Digest, 19(2): 73–6.
Panse, V.G. and Sukhatme, P.V. (1967). Statistical Methods of Agricultural Workers. 2nd Endorsement, ICAR Publication, New Delhi, India, pp: 381.
Robinson, H.F., Comstock, R.E. and Harvey, P.H. (1949). Estimates of heritability and degree of dominance in corn. Agronomy Journal, 41: 353-359.
Singh Girnam, Kumar Pradeep, Kumar Ravi and Gangwar, L.K. (2018). Genetic diversity analysis for various morphological and quality traits in bread wheat (Triticum aestivum L.). Journal of Applied and Natural Science, 10 (1): 24-29.
Singh Gyanendra, Kulshreshtha, N., Singh, B.N., Setter, T.L., Singh, M.K., Saharan, M.S, Tyagi, B.S., Verma Ajay and Sharma, I. (2014). Germplasm characterization, association and clustering for salinity andwaterlogging tolerance in bread wheat (Triticum aestivum). Indian Journal of Agricultural Sciences, 84: 1102-10.
Singh, G.P., Chaudhary, H.B. and Rajbir, Y. (2008). Genetics of flag leaf angle, width, length and area in bread wheat (Triticum aestivum). Indian Journal of Agricultural Sciences 78(5): 436–8.
Singh, M.K., Sharma, P.K., Tyagi, B.S. and Singh, G. (2013). Genetic analysis for morphological traits and protein content in bread wheat (Triticum aestivum L.) under normal and heat stress environments. Indian Journal of Genetics and plant breeding, 73 (3): 320-324.
Singh, R.K. and Chaudhary, B.D. (1985). Biometrical Methods in Quantitative Genetic Analysis.(3rd Ed.), Kalyani Publishers, New Delhi, India.
Singh, V., Krishna, R., Singh, L. and Singh, S. (2012). Analysis of yield traits regarding variability, selection parameters and their implication for genetic improvement in wheat (Triticum aestivum L.). SABRAO Journal of Breeding and Genetics, 44 (2): 370-381.
Yadav, D.K., Giri, S.C., Vignesh, M., Vasudev, S., Yadav, A.K., Dass, B., Singh, R., Singh, N., Mohapatra, T. and Prabhu, K.V. (2011). Genetic variability and trait association studies in Indian mustard (Brassica juncea). Indian Journal of Agricultural Sciences, 81 (8): 712–6.
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Nagar, S., Kumar, P., Vishwakarma, S., Singh, G., & Tyagi, B. S. (2018). Assessment of genetic variability and character association for grain yield and its component traits in bread wheat (Triticum aestivum L.). Journal of Applied and Natural Science, 10(2), 797-804. https://doi.org/10.31018/jans.v10i2.1688
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