نتایج جستجو برای: تبادل k ca
تعداد نتایج: 484794 فیلتر نتایج به سال:
Despite of increasing request for greenhouse vegetables, there is quite limited information on their nutritional quality. This study was carried out to investigate nutritional status of macronutrients (Ca, Mg, P and K) and micronutrients (Fe, Mn, Cu and Zn) in greenhouse cucumber and bell pepper in Isfahan province. After selecting 25 greenhouses, the concentration of macronutrients and micronu...
L-type, voltage-dependent calcium (Ca(2+)) channels, ryanodine-sensitive Ca(2+) release (RyR) channels, and large-conductance Ca(2+)-activated potassium (K(Ca)) channels comprise a functional unit that regulates smooth muscle contractility. Here, we investigated whether genetic ablation of caveolin-1 (cav-1), a caveolae protein, alters Ca(2+) spark to K(Ca) channel coupling and Ca(2+) spark reg...
برای تعیین شاخصهای انحراف از درصد بهینه (DOP) و روش تلفیقی تشخیص و توصیه (DRIS) ارزیابی وضعیت تغذیهای پیاز (Allium cepa L.) و مقایسه دو روش مذکور، نمونههای برگ از 50 مزرعه جمعآوری و غلظتهای عناصر غذایی N، P،K ، Ca،Mg ،Fe ،Mn ، Zn ،Cu و B تعیین شدند. با توجه به مقدار عملکرد، مزارع به دو گروه، مزارع با عملکرد بالا و پایین تقسیم شدند. نرمهای DRIS برای نسبتهای مختلف عناصر غذایی تعیین شدند. ...
A bstract. Increasing concentrations of K (20, 200, 2000 ,uM) in the nutrient solution depressed Ca content and concentration in barley plants growing in nutrient solutions of low Ca concentrations (250 and 2500 Mm). Increasing K from 20 to 200 AM depressed Ca absorption more than increasing K from 200 to 2000 FM K. The strong depression of Ca absorption by low concentraltions of K must involve...
solution potassium (so-k) and exchangeable k (ex-k) extracted by nh4oac are the major sources of potassium used by plants, but initially non-exchangeable k (nex-k) can also contribute significantly to plant uptake. perennial ryegrass (lolium perenne, cv. roper) was successively planted in ten surface soil samples with different clay mineralogical composition belonging to five soil types to dete...
An experiment was designed to investigate the effect of grafting Cucumis sativus var. Super daminos on Cucurbita moschata (Rs) and Lagenaria siceraria (Lg)which is comparing with non-grafting of Cucumis sativus var. Super daminos (Rn) and self-grafting (Rc). The experiment carried out as a factorial experiment based on complete randomized design (CRD) with 4 replicates in two temperature treatm...
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