And whether the short-age and high-yield Lentinus edodes variety "Qingke 212" can replace "808"?

Short-age and High-yield Lentinus edodes Variety "Qingke 212"

Wu Yingmiao

Science and Technology Research Center of Edible Fungi in Qingyuan County, Zhejiang Province

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Qingke 212

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Qingke 212 [Zhejiang (non) examination 2015001] is a new variety of Lentinus edodes with short bacterial age and high yield bred by the Science and Technology Research Center of Edible Fungi in Qingyuan County, Zhejiang Province. it was examined and approved by the non-major crop Variety approval Committee of Zhejiang Province in 2015. the mushroom shape is larger, the mushroom stalk is short, the commodity is good, the mushroom quality is excellent, and the yield is high. In the comparison of multi-site regional trials in Zhejiang Province from 2013 to 2014, the average yield of Qingke 212 ranked first, and the yield was higher than that of Lentinus edodes varieties such as L808. In the early promotion, this variety is favored and recognized by the majority of growers, and has promoted a total of 13.2 million bags from 2013 to 2015.

01

1 morphological characteristics

The mycelial growth temperature is 5: 30 ℃, the optimum temperature is 23: 25 ℃, and the optimum temperature for mushroom production is 16-22 ℃. The fruiting body is solitary, mushroom-shaped, the average diameter is 6.3 cm, the weight of single mushroom is 30.6 grams, and the rate of large mushroom is high; the cover is round, not easy to open umbrella, the surface is grayish brown, the middle scale is small, the periphery is large; the cover is thick, the flesh tissue is dense, it is 1.5-3 cm thick, the texture is hard, the crimping is large, it is flat hemispherical and slightly spreading or umbrella-shaped; the stalk is short, inverted conical, and the ratio of cover diameter is large. Good commodity, good taste, fresh mushrooms taste tender and fragrant, dried mushrooms taste soft and fragrant.

02

2 main points of cultivation

2.1 strain breeding: the production of strain 212 in Qingke can reasonably arrange the breeding time according to the inoculation period of bacteria rods. The original strain is generally full in 50-55 days, and the producing species is generally full in 45-50 days. The strains inoculated prematurely are easy to grow nodules and aging.

2.2 cultivation season: the suitable inoculation period is from May to July, the mushroom emergence period is from October to April of the following year, the early inoculation period before April is advanced to August to September, and the initial period of late inoculation after August is also postponed.

2.3 medium formula: miscellaneous sawdust 78%, wheat bran 20%, brown sugar 1%, gypsum powder 1%, water content 50% 55%.

2.4 cultivation mode: adapt to many modes, such as flower mushroom in high greenhouse, bagging in low greenhouse, mushroom in high greenhouse and so on.

2.5 piercing to increase oxygen: in the process of bacterial culture management, attention should be paid to maintaining good ventilation conditions and timely stacking. Qingke 212 mycelium needs sufficient oxygen and needs to be pierced for 2 or 3 times. Bacterial rods should be scattered and moved to avoid high temperature weather, and should be handled gently to avoid vibrating bacterial rods.

2.6 Color conversion management: Qingke 212 bacteria stick sends bacteria quickly but changes color slowly, so it is necessary to strengthen color conversion management, timely piercing and oxygenation is beneficial to color conversion, and proper enhancement of scattered light during culture period can promote color conversion. The bacterial sticks inoculated after July need to pierce holes and increase oxygen in time to promote the color conversion of the sticks, otherwise it is easy to produce mushrooms without completely changing color, and the sticks will change color at the end of the harvest of the first tide mushrooms.

2.7 stick ostentation: after the mycelium of Qingke 212 is physiologically mature, stimulation such as moving and slapping at the right temperature will induce a large number of fruiting bodies, and the sticks should be put on stage earlier and 15-20 days before the emergence period at the latest, so as to reduce mechanical vibration and avoid a large number of concentrated mushrooms.

2.8Management of mushroom production: the temperature difference between day and night is 6-8 ℃ for fruiting body formation, and the appropriate enhancement of scattered light during the fruiting period is beneficial to the improvement of mushroom quality. The dry and wet alternating management, the wet management during the fruiting body growth period, the moisture needed for the fruiting body growth, the "dry" management was carried out for 7 to 10 days after the end of each tide mushroom, and the ventilation was strengthened to promote the recovery of the bacteria stick. According to the condition of bacteria stick and weather, the amount of water replenished should be reduced in turn in the later stage. Mechanical vibration, temperature difference stimulation, humidity difference stimulation and so on have a better effect on bud induction. There are certain tides of mushroom emergence, which are mainly concentrated in the first two tides, and the later the inoculation period is, the more obvious the tide is.