บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Incidence of postharvest pathogens of stored apples in British Columbia.

Sholberg, P.L. and Haag, P. D.

Canadian journal of plant pathology Vol: 18 Issue: 1 Pages: 81-85.

1996

บทคัดย่อ

Incidence of postharvest pathogens of stored apples in British Columbia.

The incidence of postharvest pathogens of stored apples was surveyed in three packinghouses at Oliver, Kelowna, and Winfield, British Columbia (B.C.) from 1991 to 1993. The most common pathogens were Penicillium spp. and Botrytis cinerea, isolated from 29.0% and 25.0%, respectively of the diseased apples. Two other important pathogens were Mucor spp. and Cryptosporiopsis spp. associated with 22.0% and 10.5% respectively of diseased apples. Benomyl-resistant isolates of B. cinerea were found on 20% of the apples from Oliver in 1991 and an average of 22.1% of the apples from Winfield from 1991 to 1993. Penicillium spp. resistant to benomyl were found on infected apples at all three packinghouses and averaged 22.9% over three years. Defrost cooling water, considered as a possible source of inoculum, contained fungal propagules at all nine packinghouse locations sampled; the fungi included Cladosporium spp., Penicillium spp., and Phialophora fastigiata. Most propagules were of Phialophora spp. which occurred at eight of the nine locations and ranged from 4 to 1674 colony-forming units/mL.