不同林下栽培方式对灵芝生长和培养料碳素转化的影响

Effects of Different Cultivation Patterns Under Forest on Growth in Ganoderma lucidum and Carbon Transformation in Culture Medium

通过设置露天(T1)和遮阴(T2)两种林下栽培灵芝试验,研究分析不同林下栽培方式对灵芝子实体产量、绝对生物学效率、主要活性成分以及培养料碳素转化的影响,并监测子实体发育阶段CO_2排放通量的变化。结果表明:与T1栽培方式相比,T2栽培方式灵芝的子实体产量和绝对生物学效率平均高出36.76%,总三萜酸含量平均高出17.67%,而多糖含量平均低25.30%,并且其间的差异达显著性水平。同时,T2处理的灵芝子实体碳素转化率平均高出48.56%,碳素损失率平均高出28.96%,菌渣残留率平均低25.62%。在子实体发育阶段T2栽培方式下CO_2平均排放通量平均高出46.23%,与环境空气湿度呈显著负相关,其相关系数为0.24。

The effects of different cultivation patterns on yield, absolute biological efficiency, major bioactive components of Ganoderma lucidum and carbon transformation of culture medium were studied and analyzed by setting outdoor(T1) and undergrowth shade(T2) treatment, meanwhile, CO2 emission flux during fruit body growth stage was monitored. The average yield, absolute biological efficiency and triterpene acids content in T2 treatment was 36.76%, 36.76% and 17.67% higher, and the average polysaccharide content was 25.30% lower than that in T1 treatment, respectively. The solid carbon transformation rate, the carbon loss rate was 48.56%, 28.96% higher, and the residue rate was 25.62% lower than that in T1 treatment, respectively. The average CO2 emission flux in T2 treatment was 46.23% higher than that in T1 treatment during fruit body growth stage. There was a significant negative correlation between CO2 emission flux and air humidity, with a correlation coefficient 0.24.