Genetic Studies of Yield and its Component in Castor Ricinus Communis - Patel, Priyank D.
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Estimates of gene effects based on analysis of generation mean were obtained for nine traits in three crosses in castor (Ricinus communis L.): SKP-84 x DCS-94, VP-1 x DCS-94 and GEETA x GC-3. The study material includes P1, P2, F1, F2, BC1 and BC2 generations of these crosses.The individual scaling test and joint scaling test indicated that an additive-dominance model was adequate in three traits viz., length of main raceme, number of effective branches per plant and seed index in the cross VP-1 x DCS-94. The analysis showed the presence of additive, dominance and epistasis gene effects for…mehr

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Produktbeschreibung
Estimates of gene effects based on analysis of generation mean were obtained for nine traits in three crosses in castor (Ricinus communis L.): SKP-84 x DCS-94, VP-1 x DCS-94 and GEETA x GC-3. The study material includes P1, P2, F1, F2, BC1 and BC2 generations of these crosses.The individual scaling test and joint scaling test indicated that an additive-dominance model was adequate in three traits viz., length of main raceme, number of effective branches per plant and seed index in the cross VP-1 x DCS-94. The analysis showed the presence of additive, dominance and epistasis gene effects for the traits.However, to exploit both additive and non-additive gene action reciprocal recurrent or biparental mating procedure may be adopted for improvement of traits. Duplicate epistasis played a greater role than complementary epistasis. Key words:- Castor, Gene action, Generation mean, Polygenic traits, Scaling test
Autorenporträt
Priyank D. Patel, M.Sc(Agriculture):Genetics and Plant Breeding at Navsari Agricultural University. Gujarat, India.