Pathotypes of Puccinia triticina Eriks in Central and Peninsular India during 2001 to 2006
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Authors
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S.R. LOHATE*, S.N. HASABNIS, V.S. SHINDE, G.G. KHOT and B.P. KURUNDKAR
Abstract
Present study was conducted for six years during 2001 to 2006 to find out frequency of distribution leaf rust pathotypes prevailing in central and peninsular India and based on this data status of efficacy of Lr genes against the pathogen have been worked out. In Central and Peninsular India, Leaf rust (Puccinia triticina Eriks) pathotype 77-5 (121R63-1) was widely prevalent on wheat from 2001 to 2006 and pathotype,77-7(121R127) and 77-8 (253R31) have emerged out to be important pathotypes recently. Lr 24 gene is effective against all the pathotypes in this region followed by Lr9 and Lr19 genes. The other promising resistant genes include Lr23, Lr 20 and Lr15. It can be concluded that incorporation of Lr genes mentioned above in wheat breeding programme will help in evaluation of varieties having desirable resistance to this pathogen in central and peninsular India.
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