Management of Color conversion period of Lentinus edodes planted in blocks

Semi-clinker block cultivation of Lentinus edodes; the color change of mushroom is directly related to the yield and quality. The color conversion layer of Lentinus edodes plays a role similar to bark, which can be divided into four types, namely, reddish brown, dark brown, light brown and grayish white. Brown-red color is the most ideal, which represents moderate density, neat consistency, high yield and good quality. Dark brown indicates that the skin is thicker, the mushroom is late, the single mushroom is larger, and the yield is low. Light brown indicates that the fungus skin is thin, the mushroom is early, concentrated, there are many abnormal mushrooms, the mushroom is small, the umbrella is easy to open, and the yield is low. The gray-white clot can report several mushrooms, which will be loosely broken when immersed in water, and there is basically no yield. The block cultivation of Lentinus edodes in Northeast China generally entered the color conversion stage in the first ten days of May. The general principle of the color conversion period is that the hyphae should grow healthily, and the skin formed by the mushroom should be thin and thick, and finally turn into an ideal brown-red outer layer.

1. Temperature management about 25 days after Lentinus edodes was pressed, the mycelium reached physiological maturity, and the first ventilation was carried out. After ventilation, the hyphae grew rapidly and became stout. When the mycelium on the surface of the fungus is thick white and the particles of the culture material are not visible, and when there are sporadic brown spots on the fungus in the bag, the plastic bag should be opened in time, and the plastic should be laid flat on the culture rack, and then the fungus should be placed on the plastic, and finally covered with a layer of plastic. At this time, the space temperature of the mushroom room should be raised in time, and the temperature should be controlled at 18: 22 ℃ during the day, combined with window ventilation at night, it is best to lower the temperature to less than 10 ℃, so as to cause a large temperature difference. At this time, the fungus will appear the phenomenon of spitting water, first spitting white water, later spitting water color gradually deepened into dark brown, at this time to wipe the water in time.

two。 The management of humidity increases the difference between dry and wet on the surface of bacteria in time to promote the lodging of hyphae at the right time. To lift, wobble and cover the film many times. Ventilate once every morning and evening, 20: 3 minutes each time.

3. At this time, the light should increase the scattered light in the mushroom room, forcing the mycelium on the fungus to lodge gradually. If the mycelium lodging is slow after adopting the above measures, it can be combined with prolonging the ventilation time and ventilation should be carried out at noon every day when the air is dry and the light intensity is high. After the humidity on the surface of the mushroom decreased and the mycelium lodged, the film was not lifted for 3-4 days, and the mushroom room was ventilated normally. After such management, the clot can be transformed into a glossy brownish red in about 20 days. Only the fungus with this brown-red color conversion layer can produce mushrooms neatly and uniformly, with large body, obvious tide and high yield, so as to achieve the goal of high yield and high yield. Lentinus edodes is a typical variable temperature fruiting fungus, the greater the temperature difference after changing color, the more mushroom, the higher the yield, the better the benefit.