tailieunhanh - Studies on blight of tomato incited by Rhizoctonia solani

Tomato is one of the most important vegetable crops cultivated for its fleshy fruits. Rhizoctonia solani is the most important soilborne pathogen of tomato crop and in recent past it is known to cause blight symptoms on stems of tomato plants which has become a serious threat to tomato cultivation in Ranga Reddy district of Andhra Pradesh. The pathogen was isolated on PDA from blight affected tomato plants collected from farmers’ fields and was identified as Rhizoctonia solani based on its cultural and morphological characteristics. The culture of the fungus was greyish white in the beginning which later turned to black in color with cottony aerial mycelial growth. The hyphae produced branches mostly at right angles with constriction at the origin of branch and often formed a septum near the branch origin. | Studies on blight of tomato incited by Rhizoctonia solani

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