نتایج جستجو برای: syringa vulgaris
تعداد نتایج: 27004 فیلتر نتایج به سال:
Mating induces profound physiological changes in a wide range of insects, leading to behavioural adjustments to match the internal state of the animal. Here, we show for the first time, to our knowledge, that a noctuid moth switches its olfactory response from food to egg-laying cues following mating. Unmated females of the cotton leafworm (Spodoptera littoralis) are strongly attracted to lilac...
Invasive Alien Plants occur in numbers differing by orders of magnitude at subsequent invasion stages. Effective sampling and quantifying niches of rare invasive plants are quite problematic. The aim of this paper is an estimation of the influence of invasive plants frequency on the explanation of their local abundance. We attempted to achieve it through: (1) assessment of occurrence of self-re...
The foliar pathogen Pseudomonas syringae pv. syringae exhibits an exceptional ability to survive on asymptomatic plants as an epiphyte. Intermittent wetting events on plants lead to osmotic and matric stresses which must be tolerated for survival as an epiphyte. In this study, we have applied bioinformatic, genetic, and biochemical approaches to address water stress tolerance in P. syringae pv....
Field populations of Xiphinerna americanum around roots of Syringa vulgaris 'President Lincoln' were larger in Marshall silty clay loam, a medially developed loess soil, than in Monona silt loam, a minimally developed loess soil. Most X. amerieanum occurred in the top 15 cm of soil, with few below 30 cm. Maximum numbers occurred in August of both years in the Marshall soil, and in August 1969 a...
Non-native species are presumed to be pervasive across the urban landscape. Yet, we actually know very little about their actual distribution. For this study, vegetation plot data from Syracuse, NY and Baltimore, MD were used to examine non-native tree species distribution in urban landscapes. Data were collected from remnant and emergent forest patches on upland sites and riparian habitats. No...
αSyringa سردهای با 30-25 گونه از آسیا و جنوب شرقی اروپاست و به دلیل گلهای زیبایش در بهار و اوایل تابستان کاشته می شود. یاس بنفش .Syringa vulgaris L یکی از گونه های این سرده به شمار می رود که در این تحقیق ترکیبهای شیمیایی آن مورد بررسی قرار گرفت. گلهای یاس بنفش اسانسی با بوی بسیار مطبوع دارند و در عطر سازی از آن استفاده بعمل می آید. گلهای تازه در اواخر فروردین از باغ گیاه شناسی ملی ایران چیده شد...
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