Flammulina velutipes is one of the varieties of edible fungi with a large amount of planting in China. Both industrialized cultivation and field cultivation show a vibrant situation. Here, the author only talks about several years of experience in terms of bactericidal species for reference.

The quality of the female parent is related to the quality of the parent species. Hyphae of normal mothers should grow neatly, appear light white or thick white, mycelium should appear white after fullness, hyphae are more slender. When storing the mother species, it should be put in the refrigerator when the hyphae is almost full, and do not store it at low temperature until the parent species mycelium is fully grown. If the mother-species hyphae are fully preserved and then stored at low temperature, it is easy for the mother species to sprout quickly in a low-temperature environment, causing the parent species to lose its use value. When breeding mothers, mothers who have not buds should be selected. If mothers are budding, small buds that do not have an umbrella should be used. Parents that fully open their umbrellas should be resolutely discarded. Otherwise, they may cause large yields of mushroom. Reduced in magnitude.

The original species of sterilized and sterilized mushroom can be produced by autoclaving and normal pressure sterilization. Autoclaves generally use pressure cookers, and many mushroom farmers have misunderstandings in autoclaving. The higher the pressure, the longer the sterilization time. In fact, the key to autoclaving is whether the cold air in the pan is exhausted. The right way is to open the pressure cooker's air release valve at the beginning of heating, and start the timing when the water inside the boiler is boiling hot air exhausted from the air release valve. The small pot is maintained for 10-15 minutes, and the larger pot is maintained for 20-30 minutes. Close the bleed valve and wait for it to reach the 1.5 pressure for 90 minutes to meet the requirement. Atmospheric pressure sterilization is a common method used by mushroom farmers. If glass bottles are used to make strains, sterilization time can be slightly shorter. If plastic bags are used to make strains and there are no compartments in the atmospheric pressure cooker, then sterilization is needed. Time should be appropriately extended. The general principle is that time is rather long and not short.

Identify the quality of the original species The quality of the original species is generally judged from the mycelium, the good quality of the original species of mycelium is thick white, the airborne mycelium is obvious, and there is a clear mushroom fragrance after opening. If there is odor after opening, the mycelium shrinks yellow and white, and it should be resolutely abandoned. In the lower temperature seasons, some of the original species may have mushroom buds. The quality of these species is no problem and can continue to be used. If corn kernels are used as the original species, popping may occur on the top and sides of the original species. Experience has shown that this kind of original species is generally a good seed with high yield and stability and can be used with confidence.

It is advocated that inoculation of common strains with secondary stocks can be classified as follows: the mother plant is a first-class seed, the strain that reproduces with the mother plant is a second-order seed, and the strain that reproduces with the second-order seed is called a third-grade plant. Production species. Experience has shown that the production of Flammulina velutipes is directly inoculated with a second-grade seed breeding from the first-mother species, the mycelium develops well, the success rate is high, the pollution rate is low, and the yield of the mushroom at the later stage is obviously higher and the quality is obviously better. The production of golden needle mushroom by inoculation of three-level production species is obviously inferior to the former in all aspects. The reasons are as follows. First, the degree of purification of the first-class mother species is very high, and the bacterial age is very short. Generally, it can be grown in about 10 days. There is no hidden pollution, there is no aging condition, and the secondary seedlings are inoculated with it. Consistent, inoculation production of mushroom, the effect is naturally very good; Second, when the secondary seed is used to re-inoculate three production species, if the selection is not strict, it is very likely to select bacteria with hidden contamination such as bacteria, very It may cause the expansion of bacterial contamination and seriously affect the yield of mushroom. Therefore, it is recommended here that the majority of mushroom farmers adopt the method of inoculation of secondary seed production.

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In 2019, the New Coronary Pneumonia virus raged all over the world. Our company produced many anti-epidemic materials, including nucleic acid detection reagents, antibody detection reagents, colloidal gold, disposable civilian masks, KN95 masks, gloves, surgical clothes, ventilator, N95 medical masks, Sexual medical masks, frontal temperature guns, face masks, KN95 masks with breathing valves, disposable medical surgical masks, etc., protective clothing, isolation clothing, nucleic acid detection reagents, exported all over the world, help people around the world resist the epidemic, hope to overcome the epidemic as soon as possible Back to normal.

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