Evaluating the Growth and Yield of King Oyster Mushroom (Pleurotus eryngii (DC.:Fr.) Quél) on Different Substrates

Abstract

     King Oyster Mushroom (Pleurotus eryngii (DC.:Fr.Quél) is a delicious, edible fungus, high nutritional and medicinal values. King oyster mushroom’s fruiting bodies are of large size, pretty shape, so for these advantages, this mushroom is called "King Oyster mushroom” From the assessment results on indicators of growth and development of 6 spawns of King Oyster mushrooms (P. eryngii) in cutivating period, King oyster mushroom strain E1 have been selected. With these results, some agricultural wastes abundant such as: rice straw, sawdust, corn cob, rice bran… were comparatively evaluated as substrate ingredient for the cultivation of King oyster mushroom strain E1. Formula for substrate mixture: 40% rice straw + 20% corn cob + 19% sawdust + 20% rice bran + 1% CaCO3 was the best formula giving the highest mycelium growth rate and the fruit body yield as well. The farming of E1 King oyster mushroom achieve the highest efficiency on the formula 5 (59,4%).