บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Epiphytic fungi on apple leaves and their value for control of the postharvest pathogens Botrytis cinerea, Monilinia fructigena and Penicillium expansum.

Falconi, C. J.; Mendgen, K.;

Zeitschrift fur Pflanzenkrankheiten und Pflanzenschutz Year: 1994 Vol: 101 Issue: 1 Pages: 38-47 Ref: 35 ref.

1994

บทคัดย่อ

Epiphytic fungi on apple leaves and their value for control of the postharvest pathogens Botrytis cinerea, Monilinia fructigena and Penicillium expansum.

ABSTRACT :

 

Fungal populations were examined each month from Jun. to Oct. 1989 on apple cv. Golden Delicious leaves. Out of 32 different fungal species present, 21 occurred throughout the season in large numbers. Of these, 368 isolates were tested in vitro and in vivo for antagonistic activity towards B. cinerea, M. fructigena and P. expansum. When applied to wounded apples, isolates of Aureobasidium pullulans, Epicoccum purpurascens [E. nigrum], Sordaria fimicola and Trichoderma polysporum [Tolypocladium niveum] gave good protection at an antagonist to pathogen ratio of 100 : 1. Better control with smaller ratios (1 : 1 to 10 : 1) of antagonists to pathogens was obtained with mixtures, e.g. E. nigrum + A. pullulans, S. fimicola or T. niveum.