Author: Ajit Singh*, Rakesh Punia, Vinod Malik, Pavitra Kumari, Neeraj Kumar, Abhishek Kumar and Vipul
Sunflower (Helianthus annuus L.) is one of the most widely grown oilseed crops in the world. Sunflower mostly grown as zaid crop which requires cool climate during germination, warm weather from seedling to flowering and sunny and non-cloudy during maturity. It performs well in sandy loam and black soil with a good well-drained facility. Diseases caused by fungus, bacteria, viruses, and phytoplasma are the most common biotic factor. Among these, S. rolfsii is the most destructive fungal pathogen that causes collar rot of sunflower. It attacks the basal portion of the stem which causes rotting and leads to wilting of the plant. Due to wilting translocation of solutes to upper portion of the plant stopped and the plant ultimately dies. If this pathogen is not managed properly it results in yield loss of sunflower. To avoid yield loss and economic benefits of the farmer control of pathogen is a very necessary and challenging task. So, for efficient and sustainable crop production there is
Sunflower, S. rolfsii, Collar rot, Management
Collar rot of sunflower caused by fungus S. rolfsii is one of the most devastating diseases all over the world. Great economic losses are associated with this disease which provides great emphasis to the plant pathologist on the management of collar rot. Chemical control is the most commonly used method , but to reduce environmental hazards, bio-rational approaches like uses of botanical and bioagents are more helpful. Integrated disease management strategies like the combination of biocontrol agents and fungicides are effective in the suppression of the pathogen.
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Ajit Singh, Rakesh Punia, Vinod Malik, Pavitra Kumari, Neeraj Kumar, Abhishek Kumar and Vipul (2022). Sclerotium Rot is a Chronic Disease of Sunflower- Comprehensive Review. Biological Forum – An International Journal, 14(1): 982-989.