Estimation of genetic variability, heritability and genetic advance in twenty-one released varieties of oat (Avena sativa L.) for grain and fodder yield
DOI:
https://doi.org/10.5958/2582-2683.2022.00053.3Keywords:
Oat, genetic variability, heritability, genetic advance, variationAbstract
Present investigation was carried out at Instructional Dairy Farm in G. B. Pant University of Agriculture and Technology, Pantnagar on twenty one released varieties of oat (Avena sativa L.) during rabi 2010-11 and 2011-12. Heritability estimates varied from 28.79 per cent for crude protein content to 94.30 per cent for plant height. Grain yield per plant showed highest GCV estimates of 43.91 per cent. High to moderately high variability for GCV coupled with high estimates of heritability were observed for all the characters. As per pooled two years analysis results revealed maximum genotypic coefficient of variation for grain yield per plant, harvest index, leaf : stem ratio, dry matter yield, green fodder yield and straw yield per plant. While high heritability and moderate to high genetic advance was observed for plant height, leaf length, leaf : stem ratio, spikelet per panicle, dry matter yield, green fodder yield, straw yield per plant, grain yield per plant and harvest index indicating the preponderance of additive genetic effects for these traits. The genetic advancement as per cent mean was found to be highest for harvest index (66.09) followed by green fodder yield (51.74), dry matter yield (49.07), leaf : stem ratio (47.63), grain yield plant–1 (41.87) and straw yield plant–1 (41.87).
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References
Allard, R.W. 1960. Principles of Plant Breeding. John Wiley and Sons Inc., New York. 485 p.
Arora, R.N., Bisht, S.S., Joshi, U.N. and Jhorar, B.S. 2008. Evaluation and characterization of oat germplasm. Forage Research, 34: 29-32.
Arora, R.N., Bisht, S.S., Joshi, U.N. and Jhorar, B.S. 2009.Evaluation and characterization of oat germplasm for fodder yield and quality under different cutting regimes. Forage Research, 34: 230-234.
Bahadur, R. and Choubey, R.N. 2007. Genetic diversity and stability in forage oat (Avena sativa L.). Forage Research, 33: 139-144.
Burton, G.W. 1952. Quantitative inheritance in grasses. Proceedings of Sixth Grassland Congress, 1: 277-283.
Burton, G.W. and De Vane, E.W. 1953. Estimating heritability in fall fescue (Festuca arundinacea) from replicated clonal material. Agronomy Journal, 4: 78-81.
Gautam, S.K., Verma, A.K. and Vishwakarma, S.R. 2006. Genetic variability and accession of morphological characters in oat (A. sativa). Farm Science, 15: 82-83.
Haydar A., Ahmed, M.B., Hannan, M.M., Razvy, M.A., Mondal, M.A., Salahin, M., Karim, R. and Hossain, M. 2007. Analysis of genetic diversity in some potato varieties grown in Bangladesh. Middle-East Journal Scientific Research, 2: 143- 145.
Hornokova, O., Zavodna, M., Zakova, M., Kraic, J. and Debre, F. 2003. Diversity of common bean landraces collected in the western and eastern Carpatien. Chech Journal Genetics and Plant Breeding, 39: 73-83.
Johnson, H.W., Robinson, H.F. and Comstock, R.C. 1955. Estimates of genetic and environmental variability in soybeans. Agronomy Journal, 47: 314-318.
Krishna, A., Ahmed, S., Pandey, H.C. and Bahukhandi, D. 2013. Estimates of genetic variability, heritability and genetic advance of oat (Avena sativa L.) genotypes for grain and fodder yield. Agriculture Science Research Journal, 3: 56-61.
Kumar, Y., Jhorar, B.S. and Sangwan, O. 2004. Genetic variability and correlation studies in fodder oat (Avena sativa L.). Haryana Journal of Agronomy, 20: 112-115.
Mall, A.K., Vishwakarma, D.N. and Sayeed, A. 2005. Studies on genetic variability, heritability and genetic advance in oat (A. sativa L.). Journal of Livin World, 12: 18-21.
Nehvi, F.A., Wani, S.A. and Dar, Z.A. 2007. Triple test cross analysis of forage yield components in oats. Indian Journal of Genetics, 67: 211-212.
Pundhir, S.R., Singh, V.P. and Phogat, D.S. 2008. Genetic variability and interrelationship for various grain and seedling characters in oats. Forage Research, 33: 236-240.
Roy, C., Verma, J.S. and Yadav, A. 2013. Genetic analysis for forage and grain yield and their quality parameters in oat (Avena sativa L.). Pantnagar Journal of Research, 11: 225-228.
Sangwan, O., Avtar, R., Arora, R.N. and Singh, A. 2012. Variability and character association studies in fodder oat (Avena. Sativa L.). Forage Research, 38: 56-58.
Shankar, S., Jha, P.B., Ghosh, J. and Nirala, R.B.P. 2002. Variation and association studies in oat (A. sativa). Forage Research, 28: 110-112.
Sharma, M. and Gupta, S.P. 2007. Genotypic X Environment interactions for forage yield in oats (Avena sativa L.). Forage Research, 33: 149-151.
Shekawat, S.S., Garg, D.K. and Verma, J.S. 2006. Character association and variability study in oats for green fodder yield and related traits. Forage Research, 32: 163-168.
Shekhawat, S.S., Garg, D.K. and Verma, J.S. 2007. Genetic divergence in oats (Avena sativa) for green fodder yield and related traits. Range Management and Agroforestry, 28: 35-37.
Singh, S.B. and Singh, A.K. 2009. Genetic variability, character association and path analysis for green fodder yield and its component characters in oat (Avena sativa). Progressive Research, 4: 159-162.
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