نتایج جستجو برای: 1 varied from 559

تعداد نتایج: 7160884  

Some criteria of density in beech saplings were studied in various forest associations (mainly Galio odorati-Fagetum typicum) growing in the submontane region near Zurich (Swiss Central Plateau). The sample plots were established in regeneration gaps resulting from Swiss irregular shelter wood system (Femelschlag). Five sample plots, each 2x2m in 3 transects (a total of 15 plots in each gap, x...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1969
D B Knaff D I Arnon

The b-type cytochromes of chloroplasts have heretofore been viewed as photosynthetic electron carriers that probably occupy an intermediate position in a light-induced electron flow. The oxidation-reduction of such intermediate electron carriers, being removed from the primary photochemical reaction linked to photon capture by chlorophyll, would be expected to show a temperature dependence. Evi...

ژورنال: علوم آب و خاک 2019

To study the behaviour of phosphorus (P) sorption in the agricultural soils of Khoy region and the effect of long-term cultural management with the application of poultry manure on the P sorption parameters, bath experiments were carried out with 16 soil samples (8 cultivated and 8 virgin soils) and 9 initial P concentrations from 0 to 30 mg L-1 in 0.01M CaCl2 as a background solution. After eq...

Journal: :American Journal of Clinical Pathology 2018

M Azar MA Anbari Z Ezzatzadeh

Our research indicates that in Kerman and Fars provinces the phenomenal growth of seeds dietary supplements have received considerable interest, because of their presumed safety and potential, nutritional and functional effects. This interest can be attributed to several social and economic factors, including consumer beliefs. The amount of 7 minerals Zn, Cu, Fe, Mg, Mn, K and Na, were determin...

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