Author(s):

Kumari Nirupa and Kudada N

Abstract: An experiment was carried out during the summer season, 2012 to study the thickness of casing soil layer affected not only initiation of fruiting bodies, number of pinhead and their development but also duration of mushroom, size and weight of sporophore and yield of fruiting body and biological efficiency. Among different thickness of casing soil viz., 1 cm, 1.5 cm, 2.0 cm, 2.5 cm, 3.0 cm, 3.5 cm, 4.0 cm and 4.5 cm, casing soil having 2.0 cm thickness observed maximum number of pinhead, sporophore, size and weight of sporophore, yield and biological efficiency. 2 cm thickness of casing layer was found to be the best as compared to other casing soil thickness. Thickness of casing layer beyond 2.0 cm gradually decreased the mushroom yield and delayed the appearance of sporophores. Biological efficiency in different treatments varied from 51.45% to 100.76%.

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