不同光质LED光照对草菇菌丝生长速度、菌丝分支与生物量的影响

通过探索LED光源在草菇栽培上的精准化应用,为工厂化草菇栽培提供理论依据。以草菇V23为材料,设置LED光质6个处理:对照白光(CK)、红/蓝=1∶1、红/蓝=1∶2、红/蓝=2∶1、单红光、单蓝光,研究不同光质对草菇菌丝生长的影响。结果发现,红光与蓝光的比为1∶1 菌丝长势表现为较强,对其他指标影响不明显。不同LED光源的光质对菌丝生长速度影响很大,从结果可以看出,红蓝光比例为1∶2对菌丝的生长有显著(P<0.05)的作用,并且持续保持领先有促进作用,其次是红蓝光比例为1∶1,并且LED光源的光质对菌丝的影响主要集中在前期,到菌丝后期作用不大。对草菇菌丝生物量的影响最大的是红/蓝光的比例分别为1∶2和1∶1,其分别比CK提高了28.29%和19.97%,呈极显著(P<0.01)差异;同时菌丝分支距离相对较小,分别比CK的菌丝分支距离减少了16.03%和15.13%,整体表现菌丝浓密,且长势相对较强。

Effects of different light quality of LED light source on growth rate,mycelium branch and biomass of straw mushroom mycelium

To explore the precise application of LED light source in the cultivation of straw mushroom and provide a theoretical basis for the cultivation of factory straw mushrooms, straw mushroom V23 was used as the material, six different treatments of LED light quality were set as: control white light (CK), red/blue=1∶1, red/blue=1∶2, red/blue=2∶1, single red light, single red light. The results showed that when the ratio of red light to blue light was 1∶1, the mycelial growth was strong, and the effect on other indexes was not obvious. The results showed that the red and blue light ratio of 1∶2 had a significant (P<0.05) effect on the growth of mycelia, and it had a promoting effect on the growth of mycelia, followed by the red and blue light ratio of 1∶1, and the effect of LED light quality on the growth of mycelia was mainly concentrated in the early stage, but not in the late stage. The ratio of red light to blue light was 1∶2 and 1∶1 showed the most effect on the mycelial biomass, which was significantly (P<0.01) higher than that of CK by 28.29% and 19.97%, respectively. At the same time, the mycelial branching distance in the treatments of red and blue light ratio of 1∶2 and 1∶1 was relatively small, and the mycelial branching distance was reduced by 16.03% and 15.13%, respectively. The mycelial growth was relatively strong and dense.