Inheritance of reducing sugars in relation to white rust resistance in Indian mustard
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Authors
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O.P. YADAV*, T.P. YADAVA, P. KUMAR and S.K. GUPTA
Department of Plant Breeding, Haryana Agricultural University, Hisar 125 004
Keywords:
Indian mustard, white rust, Albugo candida, reducing sugars, inheritanceAbstract
Studies on the role of reducing sugars in relation to white rust of Indian mustard (Brassica juncea) revealed that resistant genotypes exhibited more reducing sugars content at vegetative and reproductive stages in comparison to susceptible ones. Significant negative correlation existed between white rust severity and reducing sugars. Inheritance studies revealed the predominant role of dominance variance in the genetic control of reducing sugars. Domo-4 was identified as best general combiner. Lines for further breeding programme can be selected on the basis of their per se performance. Crosses have been identified based on their high per se performance and specific combining ability effects. Intermating of selects in early segregating generations has been suggested to exploit both additive and dominance components of genetic variance.
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