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تعداد نتایج: 13431894 فیلتر نتایج به سال:
به منظور بررسی اثر محلول پاشی عناصر کم مصرف آهن و روی بر عملکرد، اسانس و مواد موثر گیاه دارویی بابونه دو آزمایش در سال های 1387 و 1388 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه تبریز اجرا گردید. آزمایش ها به صورت طرح بلوک های کامل تصادفی با چهار تکرار پیاده گردید. تیمارها شامل محلول پاشی آهن، روی و آهن و روی (با غلظت 5/3 درهزار سولفات آهن و سولفات روی) در زمان های متفاوت (مرحله ساقه روی، مرحله ...
Several plant species defend themselves indirectly from herbivores by producing herbivore-induced volatile compounds that attract the natural enemies of herbivores. Here we tested the effects of elevated atmospheric CO(2) (720 micromol mol(-1)) concentration on this indirect defense, physiological properties, and constitutive and induced emissions of white cabbage (Brassica oleracea ssp. capita...
Volatile organic compounds (VOCs) are expected to have an important role in plant adaptation to high temperatures. The impacts of increasing night-time temperature on daytime terpenoid emissions and related gene expression in silver birch (Betula pendula) and European aspen (Populus tremula) clones were studied. The plants were grown under five different night-time temperatures (6, 10, 14, 18, ...
Pheromone binding proteins (PBPs) play an important role in olfaction of insects by transporting sex pheromones across the sensillum lymph to odorant receptors. To obtain a better understanding of the molecular basis between PBPs and semiochemicals, we have cloned, expressed, and purified two PBPs (CpunPBP2 and CpunPBP5) from the antennae of Conogethes punctiferalis. Fluorescence competitive bi...
ABSTRACT Rice blast caused by the Magnaporthe oryzae pathogen is a major disease in this crop, and may cause devastating losses. This study aimed to investigate profile of Waitea circinata mycorrhiza volatile compounds antagonism M. oryzae, under different growth periods temperatures, using completely randomized design. Volatile organic were extracted headspace solid phase microextraction analy...
Abstract. Biogenic volatile organic compounds (BVOCs) emitted by the forests are known to have strong impacts in atmosphere. However, lots of missing reactivity is found, especially forest air. Therefore better characterization sources and identification/quantification unknown reactive needed. While isoprene monoterpene (MT) emissions boreal needle trees been studied quite intensively, there mu...
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