In the cultivation of edible fungi, good females are the preconditions for the cultivation of edible fungus. However, in the actual cultivation process, due to the low quality of the introduced mother plants, some farmers have low yields of mushrooms and even cause plant failure. The following describes the quality identification methods of several common mother species. 1, Pleurotus ostreatus. The hyphae are white, dense, thick, and well-growth. They do not produce pigments. The mycelium grows rapidly. They grow on PDA medium for 5 to 7 days. The aerial hyphae are prosperous, and the wall climbing force is strong. Some are cultured at 28°C or higher. The top of the aerial hyphae will become orange or light yellow liquid, which will not affect the production of the original species, but it will not be able to switch to the mother species. Excessive aerial hyphae, forming a very thick bacteria, the wall of the tube is full of aging bacteria, should not be used. The good mother of Agaricus bisporus requires hyacinth white blue, fine and sparse; aerial hyphae grow vigorously, tip upright, density is uniform; mycelium grows slowly on PDA medium, generally 15 days long with bevel; aerial bacteria The silk grows neatly, vigorously, and without sectoral variations, and the mycelium is deeply rooted. The mycelium is lodging and yellowing, and the formation of yellow-white bacteria and fruit bodies cannot be used. 2, mushrooms. The hyphae are white, thick, tidy and flocculent, do not produce pigments, and have moderate mycelial growth. They are slanted on the PDA medium for 12 to 14 days. Soy sauce-colored droplets secrete good quality females at later stages. 3, fungus. The mycelium is white, dense and thick, and the color is deepened in the later period. It can secrete brown pigments. The pigments of different species are different in color, and the medium is discolored with soluble pigments. The mycelium grows moderately, does not climb the wall, and grows on PDA medium for about 10 days. Ear buds can be formed on the late slope. 4, mushroom. The mycelium is white, dense, and slow to climb. It can secrete pigments to make the medium light yellow. On PDA medium, it can usually be filled for about 10 days, and the culture medium is easy to form fruit bodies. If the appearance of the mycelium is finely powdery, off-white or slightly yellow, the differentiated fruit body will be atrophic, and it will be an aging strain. The wall of the mushroom will easily appear as a powdery substance, ie, powdery spores. Quality is generally not ideal. 5, straw mushroom. The hyphae powder is white to silver-gray, slender, sparse and shiny, and has strong ability to climb the wall. The chlamydospores produced in a few days after cultivation are chain-like, with early pale yellow color and mature dark red lumps. The PDA medium slanted over 5-7 days at the appropriate temperature. If the mycelium is dense and white, it may be mixed with bacteria. The bacteria that do not produce chlamydospores have problems with their ability to produce mushrooms. However, premature emergence of excessive amounts of chlamydospores is a sign of decline in viability. 6, Ganoderma lucidum. Mycelium is white, slender, neat and tidy. It grows fast, does not climb walls, and has a fast growth speed. Generally, it can be overgrown with a medium slope for about 10 days. At this time, the colony's performance gradually forms a layer of pellicles, resembling gypsum, and has toughness. Secrete pigments. When the mycelium ages, the colony appears pale yellow or light yellowish brown in the middle.
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Quality Assessing Methods of Several Common Edible Parents
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