Talc formulation of Metarhizium anisopliae (Metsch.) Sorokin and its viability on storage
Navdeep Kaur and Neelam Joshi
Four Metarhizium anisopliae isolates viz. NBAIR (Ma-12), NBAII- 11, MTCC-3872 and PDBC (Ma-13) were evaluated for their growth parameters on different cereal substrates viz. maize, rice, sorghum and wheat. Maximum spore count (60.75 X105 CFUg-1) and biomass (3.79g 100ml-1) was obtained on rice. Among all four M. anisopliae isolates, NBAII- 11 was significantly better than MTCC-3872, NBAIR (Ma-12) and PDBC (Ma-13). Optimum temperature and relative humidity for production of M. anisopliae formulation was 25±2 ℃ and 90% RH, respectively. M. anisopliae formulation viability on storage at two different temperatures indicated that refrigeration temperature (4±2 ℃) was better as compared to room temperature (25±2 ℃) till six months. The present studies were conducted during 2017 at Punjab Agricultural University, Ludhiana