Nature of perennating structures of Peronospora destructor
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Authors
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S.K. SUGHA, R.K. DEVELASH, B.M. SINGH B.R. THAKUR and P.D. TYAGI
Himachal Pradesh Krishi Vishvavidyalaya, Palampur 176 062
Keywords:
Downy mildew, Peronospora destructor, Allium cepa, initial inoculumAbstract
P. destructor, the incitant of downy mildew of onion, survives as mycelium and oospores in seeds and other parts of onion plants. Mycelium in volunteer plants on garbage heaps and infected onion bulbs constituted the potential source of inoculum tothe subsequent onion crop in Himachal Pradesh, India.
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