نتایج جستجو برای: salix spp
تعداد نتایج: 52470 فیلتر نتایج به سال:
سنک بید و صنوبر،monosteira unicostata ، از آفات مهم گونهﻫﺎی مختلف بید و صنوبر در بسیاری از نقاط کشور به شمار میﺭود که به طور مستقیم به برگﻫﺎ و غیرمستقیم روی کیفیت و کمیت چوب این درختان خسارت وارد میﺳﺎزد. بهمنظور بررسی میزان مقاومت گونهﻫﺎی مختلف بید به این آفت، سازوکار مقاومت آنتیﺯنوزی 11 گونه بید در شرایط آزمایشگاهی در سال 1387در ﻣﺆسسه تحقیقات جنگلﻫﺎ و مراتع تهران بررسی گردید. قلمهﻫﺎیی سه تا ش...
Shrub willow, Salix spp. and hybrids, is an important bioenergy crop. Here we report the whole-genome sequences and annotation of 13 endophytic bacteria from stem tissues of Salix purpurea grown in nature and from commercial cultivars and Salix viminalis × Salix miyabeana grown in bioenergy fields in Geneva, New York.
The success of the short-rotation coppice system in biomass willow (Salix spp.) relies on the activity of the shoot-producing meristems found on the coppice stool. However, the regulation of the activity of these meristems is poorly understood. In contrast, our knowledge of the mechanisms behind axillary meristem regulation in Arabidopsis (Arabidopsis thaliana) has grown rapidly in the past few...
This paper reviews the potential for using trees for the phytoremediation of heavy metal-contaminated land. It considers the following aspects: metal tolerance in trees, heavy metal uptake by trees grown on contaminated substrates, heavy metal compartmentalisation within trees, phytoremediation using trees and the phytoremediation potential of willow (Salix spp.).
The main goal of this review was to provide an assessment the potential fast-growing tree species for suitable transformation agroforestry areas biomass production in Baltic Sea region. Our interest highlight research on management process zones by establishing short rotation plantations with Salix spp., Populus spp. and Alnus explore prospects planning these as producers. Short forestry (SRF) ...
While working in his garden in the spring of 1763, English clergyman Edward Stone was positive he had found a cure for malaria. Tasting the bark of a willow (Salix alba), Stone noticed a bitter flavor similar to that of fever tree (Cinchona spp.), the Peruvian plant used to make quinine. He reported his discovery to the Royal Society in London, recommending that willow be tested as an inexpensi...
Over the last decade, there has been a growing interest in use of wide range phytoadditives to counteract harmful effects heat stress poultry. Willow (Salix spp.) is tree with long history. Among various forms, willow bark an important natural source salicin, β-O-glucoside saligenin, but also polyphenols (flavonoids and condensed tannins) antioxidant, antimicrobial, anti-inflammatory activity. ...
Fast-growing willows (Salix spp.) provide alternative sources of renewable energy generation, but need an adequate nutrient availability in the soil for high biomass production. In general, species mixtures can be more nutrient-efficient than pure cultures, this is scarcely known Salix spp. Therefore, study evaluates and P mobilization under two willow species, Salixdasyclados var. ‘Loden’ S. s...
Orange hawkweed is a perennial European plant that has colonized roadsides and grasslands in south-central and southeast Alaska. This plant is forming near-monotypic stands, reducing plant diversity, and decreasing pasture productivity. A replicated greenhouse study was conducted in 2006 and repeated in 2007 to determine the efficacy of six herbicides (aminopyralid, clopyralid, picloram, piclor...
In semiarid western North American riparian ecosystems, increased drought and lower streamflows under climate change may reduce plant growth and recruitment, and favor drought-tolerant exotic species over mesic native species. We tested whether elevated atmospheric CO₂ might ameliorate these effects by improving plant water-use efficiency. We examined the effects of CO₂ and water availability o...
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