EFFECT OF SALICYLIC ACID ON GROWTH, YIELD AND DISEASE REACTION AGAINST LEAF BLIGHT OF ONION

S. BEHERA¹*, A.K. RAI^2
1Department of Plant Pathology, College of Agriculture, Bhawanipatna, 766001, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, Odisha, India
²Scientist, ICAR-Krishi Vigyan Kendra, Malkangiri, 764045, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, Odisha, India
* Corresponding Author : srujani.lucy@gmail.com

Received : 20-12-2019     Accepted : 12-01-2019     Published : 15-01-2019
Volume : 11     Issue : 1       Pages : 7701 - 7703
Int J Agr Sci 11.1 (2019):7701-7703

Keywords : Onion, Alternaria, Salicylic acid and Systemic Acquired Resistance
Conflict of Interest : None declared
Acknowledgements/Funding : The authors are thankful to “All India Network Project on Onion & Garlic” for support and funding during this research activity. Authors are also thankful to College of Agriculture, Bhawanipatna, 766001, Orissa University of Agriculture and Technology, Bhubaneswar, 751003, Odisha
Author Contribution : All authors equally contributed

The study was conducted Kalyani, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal on Onion cultivar Sukhsagar during Rabi season. The field experiment was consisted of six treatments of foliar spray of Salicylic acid (SA) at 30 days after sowing (DAS) in nursery and subsequent spray at 30, 45 or 60 days after transplanting (DAT) either alone or in combination along with one control. Salicylic acid; in their subsequent spray have been used to induce resistance against leaf blight disease. From the present investigation, it may be concluded that foliar application of SA is essential for onion crop. Foliar application of salicylic acid at 30 days after sowing and second spray at 30 days after transplanting and third spray at 45 days after transplanting during crop growth stage not only increased the growth, yield and quality bulbs but also to minimized the loss occurred due to disease pests in field.

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