نتایج جستجو برای: orobanche
تعداد نتایج: 563 فیلتر نتایج به سال:
به منظور بررسی تأثیر دمای محیط و غلظت GR60 بر جوانهزنی بذر دو گونه گلجالیز و رشد آنها در حضور میزبانهای گوجهفرنگی و توتون، دو آزمایش مجزا در شرایط کنترلشده در بخش تحقیقات علف های هرز موسسه گیاهپزشکی کشور در سال 1387 انجام شد. در آزمایش اول سه عاملی غلظت GR60 در چهار سطح صفر، یک، دو و پنج قسمت در میلیون، گونه دو گلجالیز Orobanche aegyptiaca و Orobanche cernua و سه دمای مختلف محیط 10، 20 و ...
Objective: Importance of management of gardens weeds is an issue that unfortunately has less been investigated by weeds researchers of country. One of the most important restrictive agents of cultivated surface and producing crops of Citrus orchards are weeds. Methods: In this investigation, isolates of Fusarium solani were recovered from diseased broomrape collected from toma...
The germination stimulants for root parasitic plants Striga and Orobanche produced by cotton (Gossypium hirsutum L.) were examined in detail. Seeds of cotton were germinated and grown on glass wool wetted with sterile distilled water in sterile filter units. The root exudate was collected daily and extracted with ethyl acetate. Each of these ethyl acetate extracts was analyzed directly by high-...
Parasitic weeds cause severe damage to important agricultural crops. Although some promising control methods against these parasitic plants have been developed, new strategies continue to be relevant in integrated approaches. The life cycle for root parasitic weeds is intimately associated with their host and is a suitable target for such new control strategies, particularly when directed at th...
The holoparasitic broomrapes, Orobanche spp. and Phelipanche spp. (Orobanchaceae), are root parasites that completely depend on a host plant for survival and reproduction. There is considerable controversy on the taxonomy of this biologically and agronomically important family. Flowers of over 25 parasitic Orobanchaceae and a number of close, parasitic and non-parasitic, relatives emitted a com...
Witchweeds (Striga spp.) and broomrapes (Orobanche and Phelipanche spp.) are the two most devastating root parasitic plants belonging to the family Orobanchaceae and are causing enormous crop losses throughout the world. Seeds of these root parasites will not germinate unless they are exposed to chemical stimuli, 'germination stimulants' produced by and released from plant roots. Most of the ge...
In analyzing complicated data, we are often unwilling or not confident to impose a parametric model for the data-generating structure. One important example is data analysis for proportional or count data with overdispersion. The obvious advantage of assuming full parametric models is that one can resort to likelihood analyses, for instance, to use AIC or BIC to choose the most appropriate regr...
in order to study the effect of environment temperature and gr60 concentration on seed germination and growth of orobanche aegyptiaca and orobanche cernua, two experiments were conducted under controlled conditions in weed research department of iranian research institute of plant protection in 2008. the first experiment was established as a completely randomized design with factorial arrangeme...
objective: importance of management of gardens weeds is an issue that unfortunately has less been investigated by weeds researchers of country. one of the most important restrictive agents of cultivated surface and producing crops of citrus orchards are weeds. methods: in this investigation, isolates of fusarium solani were recovered from diseased broomrape collected from tomato, eggplant, melo...
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