Abstract:

Common natural conditions were simulated in this experiment. Scattered light to day, night, dark, 10/5℃, 15/10℃, 20/15℃, 25/20℃, 30 d, 60 d and 90 d preservation time for the different experimental groups were used as experiment teams. 4℃ temperature, day and night dark and 30 d, 60 d, 90 d for the control group were used as control team, the bacteria in the plate medium speed germination, hyphal growth conditions, colony morphology and angular variability, turn expanded liquid strain, cultivated the grass, were observe. The results showed that strains the quality of the conditions were better preserved 10/5℃ 30 d>15/10 ℃ 30 d>4 ℃ (dark) 30 d>20/15 ℃ 30 d> 4 ℃ (dark) 60 d> 10/5 ℃ 60 d > 25/20 ℃ 30 d. That under certain conditions, the scattered light by day, day and night 10/5℃ and 15/10℃, 30 d preservation than traditional preservation refrigerator.