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Research Article Open access CC BY 4.0

Study about Identification of Purple Blotch and Thrips Resistant Lines of Onion (Allium cepa L.)

Kamal Mahala, D.K.Yadav, Deepak Gupta, M. R. Choudhary, Pushpa Ujjainiya, Manika Goswami

Journal of Experimental Agriculture International · pp. 304–310 · Published 8 Oct 2024

10.9734/jeai/2024/v46i102951

Abstract

Thirty six elite genotypes were evaluated during the winter season (rabi) 2022-23 at three different environments in 3 replications. RO-1, RO-59, RO-1 × RO-59, RO-1 × Pusa Madhavi, RO-59 × Pusa Madhavi, RO-59 × Kashi No. 1 genotypes had showed thrips population less than 22.90 and highly resistant to thrips infestation. Purple blotch disease, caused by Alternaria porri is the most common devastating disease of onion under field conditions throughout the globe. RO-1, Pusa Shobha, RO-1 × RO-59 and Bhima Kiran × Bhima Shakti were found resistant with a grade scale of 1. The per cent leaf area infection ranged from 1-10 per cent.

Onion Allium cepa L germplasm purple blotch disease thrips

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