אסיף מאגר המחקר החקלאי

Postharvest chlorine treatments for the control of the persimmon black spot disease caused by Alternaria alternata

Year:

2001

Source of publication :

Authors :

Volume :

22

Co-Authors:

Prusky, D., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
Eshel, D., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
Kobiler, I., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
Yakoby, N., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
Beno-Moualem, D., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
Ackerman, M., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
Zuthji, Y., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
Ben Arie, R., Department of Postharvest Science of Fresh Produce, Institute for Technology and Storage of Agricultural Products, Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel

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Abstract:

Black-spot symptoms, caused by Alternaria alternata, develop in 'Triumph' persimmon fruit during prolonged storage at - 1°C. Preharvest dip treatment in the organic chlorine compound Troclosene sodium extended the storage life of the fruit by delaying development of black-spot disease (BSD). Troclosene sodium was more stable and efficient for the control of A. alternata than calcium hypochlorite. At 500 μg ml-1 Troclosene sodium significantly reduced the development of BSD in persimmon fruit sampled in 15 orchards in different growing regions of Israel. Following commercial dipping and storage at - 1°C, the percentage of marketable fruit after 4 months of storage was 15-40% higher than in untreated fruit. Present results suggest that the BSD can be controlled by a simple dip treatment with chlorine disinfectant. © 2001 Elsevier Science B.V.

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