نتایج جستجو برای: phytophthora drechsleri
تعداد نتایج: 8495 فیلتر نتایج به سال:
Several species of Phytophthora cause crown and root rot diseases of herbaceous and woody plants. Crown and root rot of pistachio trees cause significant damages in infected orchards. The effect of foliar application with Elite (fosetyl-Al) in 2 and 2.5 g/l was evaluated in greenhouse experiments. The frequency of mortality, fresh and dry weight of roots and shoots, height, intensity of crown r...
The dissemination of Phytophthora spp. in the surface irrigation water was studied during 1993-94 in Marvdasht area and certain other parts of Fars province. Monthly the water samples were taken along 100Km of the Kor river 22Km up stream from the Doroudzan Dam to about 80Km down stream to Mardvdasht where Sivand and Kor rivers joined. The other sampling locations includede the Maeen river adje...
in order to find the plant extracts with antifungal activity, 18 plant species were screened. in this study, distilled water, methanol, chloroform, aceton and ethanol were employed to obtain crude extract from plant samples. the extracts were tested against sugar beet root rot agents, rhizoctonia solani and phytophthora drechsleri. the inhibitory effect of different extracts was investigated by...
Agathosma species, which are indigenous to South Africa, are also cultivated for commercial use. Recently growers experienced severe plant loss, and symptoms shown by affected plants suggested that a soilborne disease could be the cause of death. A number of Phytophthora taxa were isolated from diseased plants, and this paper reports their identity, mating type, and pathogenicity to young Agath...
phytophthora drechsleri که قبلاً در بسیاری از کشورها از جمله ایران به عنوان عامل بوتهمیری کدوییان گزارش شده بود، از لحاظ ریختشناسی و نیاز دمایی با p. melonis ، عامل دیگر بوتهمیری کدوییان، تفاوتی ندارد. هدف اصلی این پژوهش بررسی بیماریزایی دو گونهی p. drechsleri و p. melonis نسبت به ارقام مختلف جالیز در شرایط گلخانه بود. 87 رقم مختلف کدوییان شامل: خیار، طالبی، خربزه، کدو و هندوانه از مناطق ...
First Report of Phytophthora drechsleri Causing Black Stem Rot and Crown Decay of Sunflower in China
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