Articles
FRUIT ROT CONTROL IN LONGKONG (AGLAIA DOOKKOO GRIFF.) WITH CHEMICAL AND HOT WATER TREATMENT
Article number
943_28
Pages
219 – 222
Language
English
Abstract
Preharvest spray with 1,500 ppm carbendazim, 1, 500 ppm mancozeb, 200 ppm citric acid, and 5,000 ppm sodium hypochlorite at 40 days after fruit set for 3 times at 2 weeks interval reduced fruit rot by 96.4, 56.3, 45.4 and 44.7% and fruit drop by 80.7, 63.6, 65.1 and 9.5% after harvest, respectively compared with unsprayed control.
Among postharvest hot water treatment (HWT), dipping in 47ºC water for 3 min was the most promising, reducing fruit rot by 57.8%. Good postharvest fruit rot control was also provided by 3 min-dipping in 750 ppm prochloraz solution compared to imazalil, prochloraz, hydrogen peroxide or sodium hypochlorite treatment.
Prochloraz also gave the highest fruit drop reduction of about 83.9%. Combined hot water and prochloraz treatment further reduced fruit rot by more than 90%.
Among postharvest hot water treatment (HWT), dipping in 47ºC water for 3 min was the most promising, reducing fruit rot by 57.8%. Good postharvest fruit rot control was also provided by 3 min-dipping in 750 ppm prochloraz solution compared to imazalil, prochloraz, hydrogen peroxide or sodium hypochlorite treatment.
Prochloraz also gave the highest fruit drop reduction of about 83.9%. Combined hot water and prochloraz treatment further reduced fruit rot by more than 90%.
Authors
S. Sangchote, N. Khewkhom , T. Sungsiri
Keywords
carbendazim, hot water treatment, imazalil, prochloraz, Phomopsis sp.
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