บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Use of gamma irradiation for control of postharvest Botrytis cinerea bunch rot of table grapes in cold storage.

Kock, P. J. de; Holz, G.;

South African Journal of Enology and Viticulture Year: 1991 Vol: 12 Issue: 2 Pages: 82-86 Ref: 25 ref.

1991

บทคัดย่อ

Use of gamma irradiation for control of postharvest Botrytis cinerea bunch rot of table grapes in cold storage.

Gamma radiation (at 0, 1.5, 2.0 or 3.0 kGy) was used to treat symptomless grapes packaged in vented corrugated cartons with polyethylene bags as lining. After irradiation, grapes were kept for 4 weeks at -0.5 deg C, followed by another week at 10 deg C. Less decay was observed when grapes were irradiated soon after packing than after a storage period. Irradiation at 1.5, 2.0 and 3.0 kGy reduced the effect of inoculated B. cinerea on Barlinka grapes stored without SO2. Irradiation of Waltham Cross and Barlinka grapes at a dose of 2.0 kGy, combined with reduced SO2 treatments, resulted in similar control as achieved with the standard practice of enclosing an SO2 generator. Browning of Waltham Cross berries and bacterial and yeast growth occurred on the surface of grapes irradiated at 3.0 kGy. Irradiation had no adverse effect on other aspects of quality. It is concluded that irradiation, combined with a sulfur dioxide treatment has potential for the control of postharvest decay of grapes caused by B. cinerea.