In Vitro Screening of Plant Extracts, Nutrients and Organic Amendments for Management of Mulberry Root ROT (Macrophomina phaseolina (Tassi.) Goid)

Ten plant species were screened under in vitro conditions for the management of mulberry root rot (Macrophomina phaseolina (Tassi. ) Goid. ) Among them, two plants extracts viz. , curry leaf (Murraya koenigii L. ) and Marunthu koorkan (Coleus forskohlii) showed the 67.77 percent and 61.10 per cent inhibition of mycelial growth over control respectively. Six nutrients were screened against the M. phaseolina. The experimental results showed that Zinc sulphate (0.1 %) inhibited the mycelial growth and sclerotial production to a tune of 68.81 per cent and 70.19 per cent respectively over control. Five organic amendments were screened against M. phaseolina under in vitro condition. The results showed that Jatropha cake (5 %) was found best with 84.72 and 84.20 per cent inhibition of mycelial growth and sclerotial production over control respectively, over control