نتایج جستجو برای: plant species selection
تعداد نتایج: 1157485 فیلتر نتایج به سال:
Structure and composition of vegetation and abundance of breeding birds in grasslands seeded to Old World bluestem (Bothriochloa ischmaeum) were compared to native mixed prairie in the southern Great Plains of North America. Abundance of birds was determined using fixed-radius point counts. Detrended correspondence analysis was used to compare plant community composition and canonical correspon...
Mangrove forests encompass a group of trees species that inhabit the intertidal zones, where soil is characterized by the high salinity and low availability of oxygen. The phyllosphere of these trees represent the habitat provided on the aboveground parts of plants, supporting in a global scale, a large and complex microbial community. The structure of phyllosphere communities reflects immigrat...
AIMS The current study was designed to document medicinal plant species that are traditionally used to treat tuberculosis (TB) by Ghanaian communities. METHODS The medicinal plants used against TB or its signs and symptoms were selected using library and online published data searches. A guided questionnaire interview was also conducted with a botanist involved in plant collection at the Cent...
behaviour of the dilution characteristics of the coastal waters off tuticorin is presented in thebackground of setting up of a desalination plant. simulations of dispersion and spreading of the proposeddischarges has been carried out. scenarios of dilutions were assessed based on the results of a 2d model using the advection-dispersion theory. it is observed that under prevailing currents in th...
The text is intended for biologists and ecologists working with wild plant species. article draws attention to possible methodological inaccuracies in determining seed germination various attempts manipulate the seeds of difference between laboratory (in field), basic principles collection or selection, selection test sample, parameters related (seed germination, rate, mean time, index), initia...
in order to determine the diet of dalagh sheep, winter rangeland of gomishan plain was selected. after delineating of the grazingland territory, rangeland condition and plant combination was determined by range value method and range trend was obtained by trend balance method. time of bite-count record was done in morning and afternoon in a five-day period; first week of november (1389) and las...
information on quality characteristics of forage species help the range managers to select a suitable grazing program that minimizes the damages to vegetation. water soluble carbohydrates (wsc) -the main photosynthetic products- are stored in various plant parts and are more likely to be consumed when plants require them. in order to investigate the changes of wsc in distinguishable organs in t...
the present survey deals with the floristic study of dalab woodlands, located in manesht and ghelarang protected area, western iran. it covers an area of 4335 ha. in total, 224 vascular plant species belonging to 46 families and 156 genera were identified. the largest families are asteraceae (29 species), fabaceae (23 species), poaceae (22 species), and apiaceae (18 species). astragalus (13 spe...
in vitro propagation of rose has played a very important role in rapid multiplication of species with desirable traits and production of healthy and disease-free plants. micropropagation using nodal segments of rosa canina under different combinations of bap, ga3 and naa on ms and vs, medium was investigated. the results showed that the highest shoot proliferation was obtained on vs medium cont...
trifolium spp. are native plants in iran exhibiting good ground cover po-tential. salinity is a major environmental stress and today, 20% of the world cultivated areas and nearly half of all irrigated lands are affected by salinity. the main aim of this research was to study morphological and physiological adaptations of these native species under different salinity levels for urban landscape u...
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