نتایج جستجو برای: phenological stages
تعداد نتایج: 187784 فیلتر نتایج به سال:
ABSTRACT Scarcity of good quality water is a limiting factor for irrigated agriculture, especially in semi-arid regions, which induces the use waters with high salt concentration crop irrigation. In view above, objective this study was to evaluate phytomass accumulation and production components colored cotton genotypes during different development stages, under conditions salinity, plants grow...
Myrtle (Myrtus communis L.) is an important medicinal plant, of which all parts have pharmaceutical and nutritional applications distributed throughout the southwest regions Iran. The aerial myrtle were collected at different phenological stages (vegetative, flowering, unripe fruit ripening stages, after fully mature dispersal stage) from Fars Province Iran analyzed with GC–FID GC–MS. All data ...
in order to determine probable effects of sowing dates on partitioning coefficient of dry matter to different organs (leaf, stem and reproductive organs) in different wheat varieties (koohdasht, zagros and tajan) an experiment with crbd design and four replications was conducted. 5 sowing dates were included (29 december, 2007, 30 january, 2 march, 27 march, 1may, 2008). in order to quantify pa...
Climate change-induced shifts in phenology have important demographic consequences, and are frequently used to assess species' sensitivity to climate change. Therefore, developing accurate phenological predictions is an important step in modeling species' responses to climate change. The ability of such phenological models to predict effects at larger spatial and temporal scales has rarely been...
This research was conducted to study the role of phenology in wheat cultivars’ reaction to salinity stress. The experiment was carried out as factorial, based on a randomized complete block design with three replications, in Bu-Ali Sina University, Hamadan, Iran. Treatments included four wheat cultivars (Alvand, Toos, Navid and Sayson) and five levels of water salinity (0, 4, 8, 12 and 16 dS/m)...
Backround: The Pycnocycla bashgardiana Mozaffarian is one of the endemic medicinal species in Hormozgan province. Because of the valuable compound myristicin in the organs of this plant, it is used intravenously in the treatment of some diseases. Objective: Evaluation of essential oil content and constituents of aerial parts during different phenological stages including before flowering, flowe...
ecological studies based on field data have shown that vegetation phenology follows a relatively well-defined temporal pattern. this pattern, that is reflecting the cumulative temperature from the date of the beginning of the growth, can be represented by the use of a suitable model. due to the spatial, temporal, and ecological complexity of these processes a simple method to monitor phenologic...
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