Browsing by Author "Ghosh, S."

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Open Access
Cultivation and yield of Pleurotus sajor-caju on various lignocellulosic substrates
(University of North Bengal, 2013-03) Ray, K.; Basistha, B.; Ghosh, S.
Oyster mushrooms have ability to grow utilizing various lignocellulose substrates (Khan and Garcha, 1984). In our present work a comparative study on the cultivation and yield of Pleurotus sajor-caju using different compost composition were carried out. Six different lignocellulose materials like paddy straw, saw dust, shredded wood, rice husk, paper waste and sugarcane bagasse were used to prepare ten types of compost combinations for the cultivation of oyster mushroom. The shortest period for pinhead formation was determined to be 9 days on sugarcane bagasse compost, whereas the longest period for the same was determined to be 18 days on paddy straw and saw dust combination. The total harvest period of oyster mushroom was noted to be 41 days for sugarcane bagasse and the longest harvest period noted was 55 days on paddy straw and saw dust mixture. The highest yield was 154.8 gm on paddy straw and sugarcane bagasse mixture (1:1).
Open Access
Management of grey blight disease of Som plants using value added vermicompost with Glomus constrictum and Bacillus altitudinis
(University of North Bengal, 2015-03) Acharya, A.; Chakraborty, U.; Ghosh, S.; Chakraborty, B.N.
Grey blight disease caused by Pestalotiopsis disseminata, is one of the major foliar fungal diseases that constantly affects Persea bombycina Kost, a primary host plant of muga silkworm. Under nursery condition, grey blight disease was recorded mostly in SS and S6 morphotypes of som plants. Vermicompost, PGPR and AMF, alone and in combination were applied for the improvement of the growth of eight morphotypes of som plant as well as to reduce incidence. Growth in terms of height (cm), no. of leaves and no. of branches were studied. Analysis of some major defence related enzymes such as POX, PAL, CHT and GLU was also carried out to check induction of resistance after treatment. Artificial inoculation of som plants under nursery condition with spore suspension of P. disseminata was performed and disease progression noted for 7, 14, 21 and 28 days. It was clearly seen that disease progression was slow and less in treated inoculated plants. The results emphasize the fact that application of bioinoculants can be studied in larger scale for the upliftment of the health status of muga host plants.