Abnormal mushroom is a common physiological disease in the production of Pleurotus ostreatus, which seriously affects the yield and quality of Pleurotus ostreatus. This disease is mainly caused by improper management, and a few are caused by strain degradation, mutation, and virus infection. The main types of Pleurotus ostreatus are:
1. Stiletto mushrooms. Caps are small, differentiation is poor, and mushroom handles are long. The reason is the formation of primordium and differentiation of mushroom house oxygen deficiency, lack of light, while the temperature is high, affecting the normal differentiation and development of the cap. Prevention and control methods: Strengthen ventilation, adjust light and temperature.
2. Tumor mushroom. There are many granular protrusions on the edge of the cap, light color, mushroom cap stiffness, growth retardation, severe mushroom cover differentiation is poor, irregular shape, because the mushroom body development temperature is too low, long duration, resulting in the growth of the inner and outer layers of cells Disorder. Prevention and control methods: Adjust the mushroom house temperature above the minimum temperature limit for the growth of the selected oyster mushroom strain, and there must be a certain temperature difference to promote the growth, development and differentiation of the mushroom body.
3. Cauliflower mushroom. Mushroom shaped like cauliflower, much branched, the initial primordium was egg-shaped, inflated, uplifted, and not differentiated. There are more branches in the later period. The reason is that the mushroom bed or mushroom house was sprayed with a high concentration of pesticide before or during the mushrooming period, especially dichlorvos, and the young mushroom was extremely sensitive to it, and this disease was most easily caused. It may also be that the mushroom house contains other harmful gases, such as carbon dioxide, sulfur dioxide concentration is too high. Prevention and control methods: mushroom pesticides should be used with caution, concentration should not be too high when used. In particular, the use of dichlorvos is absolutely not allowed during the fruiting period, and ventilation, air ventilation, and harmful gases are eliminated.
4. Shrinking mushroom. The body of the mushroom is normal at the beginning, yellowing in the swelling period, showing edema or shrinkage, stopping growth, and finally becoming soft and rot. The cause of edema is that the humidity is too large or there is more water directly sprayed on the young mushroom body, making the mushroom tissue absorb water, affecting the respiration and metabolism and stopping the growth and death. Shrinkage is due to the relative humidity of the air is relatively small, ventilation is too strong, the wind blows directly on the mushroom body, so that the mushroom loses water and die. Or the nutrient of the culture medium is imbalanced, after forming a large number of primordia, some of them grow rapidly, and the rest are stagnated due to insufficient nutrition supply. Prevention and control methods: control the humidity in the 80% to 85%, do not spray water on the young mushroom body, do not let the wind blow directly on the mushroom body. Reasonable ratio culture ingredients. A small number of shriveled mushrooms are due to the degradation of strains. The symptom is that the strained cap has not yet grown large enough to be recoiling, yellowing, and shrinking. In this regard, good strains should be reselected.
5. Coral Mushrooms. The primordium is abnormally differentiated, loose, and has many small branches that resemble corals. The reason is that when the primordium was severely ventilated, the light was very weak and the nitrogen source was lacking. Prevention and control methods: Strengthen ventilation and light, adjust carbon and nitrogen ratio, and add nitrogen source.
Light Color Quarters Walnuts Kernels
1/4 Walnut Kernels , light color, broken while hand shelling .size is equal to or bigger than 1/4 walnut kernels,
Light Color Quarters Walnuts Kernels,Light Color Walnuts Kernels,Hot Walnut Kernels Light,Walnut Kernels Light Quarters
Weishan Yuanxing Walnuts Co.,Ltd. , https://www.walnutsxxy.com