Determination of Yield and Quality of Oyster Mushroom (Pleurotus florida) Using Different Substrates in Halabja, Kurdistan Reign-Iraq

Abstract

This research was conducted in Agricultural Technical College of Halabja, Sulaimani Polytechnic University. The aim of this study was to evaluate the numbers of days taken for mycelium developing, initiation of primordia, pinheads, harvesting stages, yield, the biological efficiency (%), and percent quality (protein, carbohydrates, fiber, fat and moisture) contents of oyster mushroom (Pleurotus florida) on five different substrates: Wheat stalk alone and in combination with wheat bran, gypsum and soil. The highest rate of spawn run (21.50 day) discovered from control E and the lowest (14.75 days) was found in treatment C. The longest period of days taken for initiation of primordia from treatment E 100% wheat was (33.50 days), and the shortest (15.75 days) was found in treatments C and D. The highest yield (333.2±2 g) was obtained from tereatment A 88% wheat, which was not singnificantly higher than the other treatments. The total yield was collected from three flushes of harvested mushroom. The lowest yield (295.9±2 g) was observed from treatment D 52% wheat. Protein content in treatment D 52% wheat gave the highest value (24.28%), and the lowest protin content (17.35%) was shown by treatment E 100% wheat. Total fiber content in treatment E 100% wheat was significantly higher than other substrates, and the highest level of fiber (23.83%) was taken from treatment B 76% wheat, and the lowest (16.53%) was taken from treatment D 52% wheat.