Survival, perpetuation and life cycle of Claviceps oryzae-sativae, causal agent of false smut of rice in Karnataka
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Authors
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YASHODA HEGDE1 and K.H. ANAHOSUR2
1 Agricultural Research Station, Mugad, University of Agricultural Sciences, Dharwad 580 005
2 Department of Plant Pathology, University of Agricultural Sciences, Dharwad 580 005
Keywords:
Survival, perpetuation, life cycle, Claviceps oryzae-sativae, false smut, riceAbstract
Chlamydospores of Claviceps oryzae-sativae, collected from an infected rice inflorescence, remained viable for upto four months when stored at room temperature (25-35℃) and in paddy straw at 25-44?while those stored in the refrigerator (4-6? retained their viability for upto seven months. Pseudosclerotia retained their viability upto seven months at room temperature (25-35? and in paddy straw at 25-40?and for nine months in the refrigerator (4-6℃). The presence of true sclerotia and their germination through stromatic head bearing ascospores were observed for the first time in Karnataka, India.
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