Preparation for preventing and treating post-harvest mycosis of fruits

[0029] Embodiment 1: The influence of preparations of different proportions on the growth of mold mycelium and the germination of conidia

[0030] Biological material: silk mold, purchased from Suzhou Beina Chuanglian Biotechnology Co., Ltd. Both Penicillium extensa and Penicillium citrinum were isolated and screened in the laboratory (for related literature, see: He Yingrong, Lin Haiyan, Cao Zongwei, et al. Effects of different treatments on postharvest pathogenic bacteria in peach-shaped plums[J]. Tropical Crops, 2017, 38(4):734-739 and Zhao Ning, Song Yuhui, Chen Li, et al. Isolation, identification and indoor antibacterial test of Penicillium citrinum in peach-shaped plums in Shengzhou[J].Journal of Fujian Agricultural Sciences, 2018,33( 4): 407-412).

[0031]Determination method of mycelial growth inhibition rate: plate culture method (see He Yingrong, 2017) was used to measure the growth inhibition rate of Mycelia spp. 5 cells / mL bacterial liquid; then placed in an inc...

[0040] On June 31, 2017, 80% of the mature peach-shaped plums recovered from the planting base were treated with 0.08% boric acid and 1.2% chitosan oligosaccharide compound, and the coated fruits were packed in containers with In the small-hole polyethylene fresh-keeping bag, each bag contains 5kg of fruit, and a total of 200Kg of fruit is processed and divided into 40 bags for storage. Store in an artificial climate box at 26°C and a relative humidity of 85%-90%. At the same time, the fruit washed and soaked with distilled water was used as the control treatment. It was found that the control treatment soaked in distilled water had a disease incidence rate of up to 40.5% when stored for 8 days, while it was treated with 0.08% boric acid and 1.2% chitosan oligosaccharide compound coating, and the incidence rate was only 10% on the 10th day of storage. 9.78%, reaching a significant difference. It shows that the combined treatment can significantly reduce the rot rate of posth...

[0042] On July 8, 2017, 90% of the mature peach-shaped plums collected from the planting base were compounded with 0.08% boric acid and 1.0% chitosan oligosaccharides, and the coated fruits were packed in containers with In the small-hole polyethylene fresh-keeping bags, each bag contains 5kg of fruit, and a total of 100Kg of fruit is processed, which is divided into 20 bags for storage. Store in an artificial climate box at 26°C and a relative humidity of 85%-90%. At the same time, the fruit washed and soaked with distilled water was used as the control treatment. It was found that the control treatment soaked in distilled water had a disease incidence rate of 48.75% when stored for 8 days, and was treated with a compound coating of 0.08% boric acid and 1.0% chitosan oligosaccharide, and the incidence rate was only 10% on the 10th day of storage. was 10.72%. It shows that the combined treatment can significantly reduce the rot rate of postharvest fruit, and the effect of pr...