Infection and colonization of pigeonpea genotypes with different degrees of susceptibility to wilt by Fusarium udum
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Authors
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M.V. REDDY and T.N. RAJU
Crop Protection Division, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Asia Center, Patancheru, Andhra Pradesh 502 324
Keywords:
Pigeonpea wilt, Fusarium udum, epidemiology, resistanceAbstract
The role of infection and colonization of 4 pigeon pea cultivars by F. udum was determined in Patancheru, Andhra Pradesh, India. Significant differences were recorded in Fusarium wilt incidence on the 4 cultivars at maturity but not at the seedling stage. At maturity, 7% wilt was recorded in the resistant cv. ICP 8863 compared with 83% in the susceptible variety ICP 2376. The results showed that although the cultivars differed in the extent of wilting, they did not differ in the extent of infectionor colonization.
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