نتایج جستجو برای: xanthium
تعداد نتایج: 436 فیلتر نتایج به سال:
BACKGROUND An outbreak characterized by vomiting and rapid progression to unconsciousness and death was reported in Sylhet Distrct in northeastern Bangladesh following destructive monsoon floods in November 2007. METHODS AND FINDINGS We identified cases presenting to local hospitals and described their clinical signs and symptoms. We interviewed patients and their families to collect illness ...
Xanthium spinosum is a cosmopolitan annual herb used in traditional medicine worldwide. Although known from ethnobotanical studies, the species scarcely investigated aspects of phytochemistry and biological activity. Therefore, phenolic composition activity X. were examined. Plant specialised metabolites (phenolics) extracted roots, leaves fruits with dichloromethane:methanol (1:1) analysed by ...
vinelanidii. The related compounds tested, phenoxyacetic acid, phenylpropionic acid, orthoand parachlorophenoxyacetic acids, inhibited the test organism to lesser degrees. Protection from the inhibition produced by 2 x 10-2 MI phenoxyacetic acid and phenylpropionic acid was afforded by molar ratios of 1: 1 and 2: 1 respectively', magnesium to the agents. Considerable protection, though not comp...
به منظور ارزیابی برهمکنش عوامل محیطی نظیر دما (سرما و گرما)، شرایط نگهداری و نیز مواد تنظیم کننده رشد گیاهی بر شکست خواب بذر توق که در پاییز سال 1384 از مزارع کرج جمع آوری شده بود، آزمایشاتی انجام شد. بر اساس نتایج بدست آمده، بذرهای تازه برداشت شده از گیاه مادری دارای خواب بودند. تلفیقی از پسرسی، سرما و نوسانات دمایی منجر به افزایش معنی دار در تعداد بذرهای جوانه زده شد. به طوری که از مجموع تیم...
The reproductive success of sibling cocklebur plants (Compositae: Xunthium strumarium) was monitored after growth at different levels of availability of water and nutrient resources. Variation in reproductive success among individual plants was related to physiological, structural, and phenological characteristics. Reproductive success increased with increased availability of resources, but the...
Proc. Amer. Soc. Hort. Sci. 55: 247-253. 1950. 27. SCHAEFER, V. J. The formation of ice crystals in the laboratory and the atmosphere. Chem. Rev. 44: 291-320. 1949. 28. SCHOONOVER, W. R., BROOKS, F. A., and WALKER, H. B. Protection of orchards against frost. California Agr. Ext. Circ. No. 111. 1939. 29. SEEMANN, J. tJber die Bedeutung der Unterkiihlung fur die Selektion frostresistenter Bohnenp...
The amino acid antimetabolite, DL-p-fluorophenylalanine (FPA), inhibited induction of flowering in the short-day cocklebur plant, Xanthium pensylvanicum Wall., primarily by interfering with processes occurring during the inductive dark period. At the concentrations used the inhibitor had little effect on subsequent vegetative development of the plant.The inhibition was largely reversed (interna...
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