Country’s first sporeless mutant of Pleurotus was produced through UV radiation mutation. This mutant was produced to counter the respiratory allergy caused due to inhalation of spores in the commercial farms. The sporeless mutant does not produce any spore as compared to the parent P. florida which produced 9478444 spores/ml This character has been stable since the past 15 years. The yield of this mutant had increased by 38%.
Mushrooms brown in color, gills and stalks white. It can be grown on sterilized sawdust and wood chips mixture of hard wood trees. Optimum temperature requirement for spawn running 25-28°C. Spawn running period 80-90 days. Cold water shock treatment essential to induce fructification. Cropping requires an optimum temperature of 22-26°C, humidity of 80-85%, diffused light and ventilation. Mushrooms can be harvested in 3-4 flushes after which the entire cycle is repeated. Total cultivation cycle of 110-120 days. Biological efficiency potential 50-100%.
Mushrooms brown in color with shining cap. The lower pore surface creamy to white changing color on bruising. Spores brown. It can be grown on sterilized sawdust or paddy straw. Optimum temperature requirement for spawn running 30-32°C. Spawn running period 25-30 days. Cropping requires an optimum temperature of 30-32°C, humidity of 80-85%, light and ventilation. Mushrooms can be harvested in 2-3 flushes after which the entire cycle is repeated. Total cultivation cycle of 120-150 days. Biological efficiency potential 25-30%.
It was introduced for commercial production for the first time in India by IIHR. Mushrooms initially gray in color, fading on maturity. Gills and stalks white. Mushrooms large and fleshy with excellent taste. Mushrooms occuring in clusters. Shelf life 36-48 hours at 25-30°C and 4-5 days at 4°C. Commercial cultivation has been standardized on pasteurized (80-85°C for 2 hours)/ sterilized (121 °C, 15 lb pressure for 15 minutes) paddy straw. It completes spawn run in 25-30 days in a temperature range of 25-30°C.
This is the first indigenous mushroom to be commercialized in the country. Mushrooms white in color, gills and stalks white. Mushrooms large with long, thick fibrous stalk. It can be grown on pasteurized or sterilized wheat or paddy straw. Optimum temperature requirement for spawn running 30-35°C. Spawn running period 24-28 days. Casing essential for fructification. Cropping requires an optimum temperature of 35-38°C, humidity of 85-90%, diffused light and ventilation. Mushrooms can be harvested in 2 flushes after which the entire cycle is repeated.
