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Who discovered first time Heterodera avenae in India?

Question: Who discovered first time Heterodera avenae in India?

Options:

Vasudeva
Milne
Sethi & Swarup
Koshy

✅Explanation:
Heterodera avenae, the cereal cyst nematode, was first reported in India by R.S. Vasudeva in 1952. He identified the nematode as the causal agent of "molya" disease in wheat and barley crops in Rajasthan. This discovery was a significant contribution to Indian agriculture, as it helped to understand and manage this important pest.

• Why Other Options Are Incorrect:
(b) Milne: D.L. Milne was a South African nematologist known for his work on citrus nematodes.
(d) Koshy: P.K. Koshy was an Indian nematologist who focused on nematodes in banana plantations.

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