CO_2对金针菇子实体发育的影响及在冷库生产中的控制

Effect of CO2 on Flammulina velutipes Fruit Body Development, and Control of CO2 Levels During Mushroom Cultivation in Refrigerated Warehouses

CO2对金针菇子实体发育不同阶段的影响不同，0．03—0.134％CO2浓度适宜原基发生，0．134～0．448%CO2浓度适宜菌柄伸长。采用贮梨冷库进行金针菇生产时，原有设施通风能力与金针菇生长时产生CO2量不协调，容易造成CO2的过度积累，影响原基发育、降低商品性状；经实验提出了对冷库的简单改建方法，以提高CO2排除效率，结合Ca（OH）2对CO2的化学吸收，能把库内CO2浓度控制在金针菇子实体生长发育要求的水平上。

High CO2 concentrations strongly inhibited the formation of Flammulina velutipes primordia and were also harmful for mushroom development, resulting in smaller fruit body caps and thinner stipes. Our data suggest that CO2 concentrations should be maintained between 0.03-0. 134 % at the time of primordia development, and between 0. 134-0. 448% during fruit body elongation. Cultivation of F. velutipes in pear refrigerated warehouses （PRWs） with limited ventilation resulted in CO2 accumulation to levels that adversely affected fruit body formation and growth, and ultimately mushroom quality. Relatively minor modifications to improve the ventilation capacity of the PRWs, combined with spraying with Ca（OH）2 solution, allowed CO2 concentrations to be controlled at levels suitable for commercial mushroom production.