บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Low-temperature biology and pathogenicity of Penicillium hirsutum on garlic in storage

P. Bertolini and S. P. Tian

Postharvest Biology and Technology Vol: 7 Issue: 1-2 Pages: 83-89.

1996

บทคัดย่อ

Low-temperature biology and pathogenicity of Penicillium hirsutum on garlic in storage

Penicillium hirsutum grown on potato dextrose agar and kept at 20, 10, 4, 2, 0, -2 and -4°C for 25 weeks revealed a longer lag phase at 0°C and below, and its growth was reduced as the temperature was lowered. At -4°C, the fungus showed slight lengthening of the hyphae only after 19 weeks. Sporulation and germination of conidia were also delayed by low temperatures, and at -4°C there was no production or germination. All of the wounded and inoculated cloves of `Bianco Piacentino' garlic showed symptoms of blue mould disease after four weeks of storage at temperatures between 0 and 20°C. At -2°C, P. hirsutum colonised all of the cloves after seven weeks, while at -4°C they were all still healthy after 16 weeks. No freezing injury was encountered at negative temperatures. A storage temperature of -4°C is advisable for the prevention of blue mould disease.