Ecology, Environment and Conservation Paper

Vol 21, Issue 2, 2015; Page No.(877-879)

BREEDING POLE TYPE FRENCH BEAN (PHASEOLUS VULGARIS L.) FOR RUST DISEASE (UROMYCES PHASEOLI REBEN WINT) RESISTANCE USING SCAR MARKERS

B. Divya, T. S. Aghora, N. Mohan, C. Aswath and H.P. Sudeep

Abstract

French bean (Phaseolus vulgaris L.) 2n=14 is an important legume vegetable grown for its tender green pods which are rich in proteins, minerals and dietary fibre. Though it is a short duration crop, it is prone to several biotic and abiotic stresses. Among the biotic stresses, rust incited by Uromyces phaseoli (Reben Wint) is a serious disease in bean growing areas and the yield loss to the tune of 80 per cent is reported. Rust fungi have wide variability in pathogenicity and also has more than 150 physiological races of the pathogen are reported. Hence, the induction of genetic resistance is always preferred because it is least expensive and has no adverse environmental effects. Inheritance of rust resistance was studied in F2 generation using SCAR markers and resistance was confirmed in parent genotype Arka Anoop by using SA 14 and SBC 6. In Arka Anoop, resistance to rust is controlled by two dominant genes.

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