A Study on Mycelial Growth Pattern of Amanita chepangiana, a Wild Edible Mushroom, on Different Nutrient Sources

Abstract

Vegetative growth requirement of Amanita chepangiana Tullose and Bhandari, an indigenous wild edible mushroom were studied. Malt extract was the best carbon source. This was followed by carbon control and lactose in that order. The least growth was observed in fructose. Sodium nitrate proved to be best nitrogen source while ammonium nitrate to beleast. Ascorbic Acidwas the best vitamin among the tested while Nicotinic Acid was the lowest. Arginine was the best amino acid source and least stimulating amino acid was valine.Carbon to Nitrogen ratio of 4:1 and 1:4 stimulated good mycelial growth.while the lowest mycelial growth was recorded in 1:1. Key words: studies, vegetative growth, Amanita chepangiana, wild edible mushroom,chepang, nutrient source.