บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Postharvest control of blue mold and gray mold on apples using isolates of Pseudomonas syringae.

Zhou T., Chu C.L., Liu, W. T. and Schaneider, K. E.

Canadian Journal of Plant Pathology. Volume 23, Number 3, 2001. Pages 246–252.

2001

บทคัดย่อ

Postharvest control of blue mold and gray mold on apples using isolates of Pseudomonas syringae.

Four isolates of Pseudomonas syringae, MA-4, MB-4, MD-3b and NSA-6, from the phyllospere of apple trees, were evaluated as biocontrol agents for controlling blue mould (Penicillium expansum) and gray mould (Botrytis cinerea) of apples (Malus domestica [Malus pumila]) in storage. When separately co-inoculated with the two pathogens, the four isolates at a concentration of 1 x 107 CFU/ml controlled blue mould by 78-94% after incubation at 20 deg C for 5 days and by 64-70% at 4 deg C for 28 days. The incidence of gray mould was also significantly reduced by Pseudomonas syringae isolates MD-3b, NSA-6, and MA-4 under these conditions. However, a higher concentration of Pseudomonas syringae MA-4 and NSA-6 was required to control gray mould compared with blue mould. Spray treatment with Pseudomonas syringae MA-4 significantly controlled blue mould on 'Empire' and 'Delicious' apples at 18 and 4 deg C. Under conditions similar to those of controlled atmosphere in commercial storage, a dip treatment with Pseudomonas syringae MA-4 significantly controlled blue mould on 'Empire' and 'Delicious' apples and was more effective than the treatment with BioSave, a commercially available biofungicide. Pseudomonas syringae MA-4 at a concentration of 1 x 108 CFU/ml controlled blue mould as efficiently as the chemical treatment with a combination of thiabendazole and diphenylamine.