Different temperature seasons should be used in different cultivation seasons. If the temperature type of the varieties does not match the cultivation season, the yield and quality of Pleurotus ostreatus will be seriously affected and even lead to an unacceptable harvest. When selecting strains, not only varieties with fast mycelial growth, strong stress resistance, early fruiting, high yield, and strong flavor should be selected, but also the temperature, nutrition, oxygen, humidity, pH, etc. of the strain should be known. As a reference for cultivation management. The quality of strains of Pleurotus ostreatus is the key to its yield. Excellent Pleurotus ostreatus strains, thick and resistant mycelium, can be widely adapted to a variety of alternative culture materials, early mushrooming, good mushroom shape, and high yield. Now we introduce the external characteristics of the superior and inferior mushroom species as follows: (1) Characteristics of the excellent strains 1 From the outside, the mycelium in the bag is all white and thick, dense and dense, with no variegated hyphae, and the front end is neat. , fan-shaped development. 2 The cottonseed hull culture material that has been decomposed by the hyphae turns yellow-brown, and the sawdust culture material turns white to light yellow. 3 strains have the special aroma of Pleurotus ostreatus, which is elastic when pressed by the culture medium by hand; Just formed a small amount of mulberry-like buds, bacteria age 25 to 40 days, is a good strain. (2) Characteristics of inferior bacteria species 1 Mycelial growth is slow and inefficient, uneven, does not spread downward, or the mycelium full of bags, but the mycelium in the upper part of the bag is removed, leaving only the brown culture material. 2 The mycelium is yellow, and a layer of pellicles (bacterial bacilli) is produced on the surface. The growth is slow, indicating that the strain has been degraded. After the mycelium covered the bag, sparse or bundled growth was not uniform, and a thick linear mycelial cord appeared on the upper part. 4 brown liquid appears in the bag, which is the performance of aging, although sometimes it can mushroom, but the output is very low and difficult to manage. Any variegated spots in the bacteria species, dark white, light yellow round or irregular shaped particles, or inhibition lines of different mycelium, are all infected with the bacteria, and they should be discarded immediately and absolutely cannot be used.
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