培养料及菌种用量对华北地区大球盖菇产量和品质的影响OA

Taking Stropharia rugosoannulata(S.rugosoannulata)as the experimental material,the effects in yield and quality of mechanisms by which substrate application rates(5 000,7 500,10 000 kg·(667m2)-1)and inoculum rates(100,200,and 300 kg·(667m2)-1)were studied,and the influencing mechanisms were also investigated,in order to provide reference for enhancing the yield and quality of S.rugosoannulata in North China.The results showed that compared to other treatments,both the strain application rates of 200 and 300 kg·(667m2)-1 under a culture medium application rate of 7 500 kg·(667m2)-1 significantly enhanced the yield and biological efficiency of S.rugosoannulata.Specifically,the yield increased by 39.4％to 185.7％and 43.3％to 193.8％,while the biological efficiency improved by 1.39 to 3.57 times and 1.43 to 3.68 times,respectively.The two treatments exhibited significantly higher contents of crude protein and crude fiber in the fruit bodies compared to other treatments,except for the treatment with the culture medium rate of 10 000 kg·(667m2)-1 and the strain rate of 300 kg·(667m2)-1.Specifically,the crude protein content increased by 20.9％to 44.6％and 16.8％to 39.7％,while the crude fiber content rose by 15.3％to 36.5％and 12.8％to 33.6％,respectively.The findings from the analyses of two-way ANOVA and structural equation modeling indicate that both the quantities of culture medium and strain significantly influence yield.Additionally,the quantity of strain exerts a notable impact on the crude protein and crude fiber content of the fruit bodies.This effect was primarily mediated through direct or indirect regulation of substrate moisture content,C/N ratio,and lignocellulose composition.