Differential analysis of mycelial growth age,effective cumulative temper-ature and temperature type among Lentinula edodes varieties

KONG Weili; LIU Jinling; WU Jie; WANG Yufeng; LIU Qin; CUI Xiao; SUN Wenhua; ZHANG Yuting

doi:10.16861/j.cnki.zggc.2024.0499

Abstract：To investigate the relationship between the mycelial growth age,temperature type,and effective accumulated temperature across different growth stages of Lentinula edodes,nine L.edodes varieties were selected as materials.The process involved two growing seasons,including industrialized production of culture sticks,mycelium cultivation,and fruiting.The temperature types,mycelial growth age,and effective cumulative temperature at each stage of different L.edodes varieties were calculated and evaluated,and the correlation and difference between them were analyzed.The re-sults showed that the actual mycelial growth age would be affected by the external temperature in different seasons,and the theoretical mushroom age had a highly significant positive correlation with the time of brown film formation if the temperature was always maintained in the appropriate range of mycelium(r=0.761).The theoretical mycelial growth age and effective cumulative temperature during mycelium raising of nine L.edodes varieties were calculated comprehensively,among which the effective temperature of short mycelial growth age(＜80 d),medium mycelial growth age(80-90 d)and long mycelial growth age(＞90 d)were 1200-1400 ℃,1600-1700 ℃,and greater than 1800 ℃,respectively.There was a highly significant positive correlation between the theoretical mycelial growth age and the effective cumulative temperature during the mushrooming period(r=0.867),and a significant positive correlation between the effective cumulative tempera-ture during the mushrooming period and the temperature type(r=0.796).The mycelial growth age and effective accumu-lated temperature of different L.edodes varieties should take into account the environmental factors.By combining the size of the effective cumulative temperature with the local climate,the adaptability of L.edodes to a certain region and the time of planting can be judged,so as to optimize the planting plan.