نتایج جستجو برای: 200 and 300 mgkg l
تعداد نتایج: 16971726 فیلتر نتایج به سال:
reduction of deleterious effects of salt stress using some plant bioregulators has been reported in different plant species. salicylic acid (sa) has been considered as a signaling molecule and it is known to ameliorate the oxidative damage caused by environmental stresses such as salt stress. the present study was conducted to investigate the effects of sa on different growth characteristics, p...
peach (prunus persica l. batsch.) is produced in most areas of iran, where flowering is hindered by temperature. using plant growth regulators to delay bloom is a suggestive measure to avoid frost damage. the objective of this study was to determine the effects of methyl jasmonate (mj) and salicylic acid (sa) on peach bloom delay and yield. this study evaluated the applications of mj 0 (contro...
1. Ascorbic acid deficiency results in a reduction in the activity of the hepatic mixed function oxidase systems in the guinea-pig. In this study, male Dunkin-Hartley guinea-pigs were given 0, 50, 100, 200 or 300 mg ascorbic acid/d in two equal doses in buffered sucrose solution (200 g/l) for 4 d. Controls received an equal volume of sucrose solution. 2. A dose of 50 mg ascorbic acid/d resulted...
امروزه آلودگی فلزات سنگین در خاک به مشکل بزرگی تبدیل شده که تجمع آن در گیاهان می تواند به طور مستقیم یا غیر مستقیم بر زندگی حیوانات و انسان اثر گذار باشد. کادمیوم فلز سمی است که با افزایش آلودگی های زیست محیطی، ورود آن به زنجیره غذایی به طور معنی داری افزایش می یابد. این پژوهش به بررسی تاثیر کلرید و سولفات پتاسیم بر جذب کادمیوم و ارتقای گیاه پالایی آن توسط کلزا (brassica napus l.)، در سال زراعی...
gladiolus is one of the flowers that used on cut flower and garden plants. an experiment was conducted to study the effects of chemical treatments on the vase life of gladiolus cut flower cv. ‘rose supreme’ with ten chemical treatment using complete randomize design with 3 replications. gladiolus cut flower was harvested when the 2-3 lowest bud had start showing color then cut flower were treat...
the objective of this research was to evaluate the effect of different concentration of salicylic acid on enhancement germination characteristics of sanguisorba minor l. under salt and drought stress. the experimental design was factorial arranged in a completely randomized block design with four replications. treatment were combination of 5 levels of salt and drought stress, separately (0, -0....
The effectiveness of 1,2-dimethyl-3-hydroxypyrid-4-one (Ll) in increasing iron excretion in iron-loaded patients improved the propsects for replacing desferrioxamine (DF) with an oral chelating drug.’,’ L1 belongs to a new group of iron chelators, the a-ketohydroxypyridines (KHP); which are cheap to p ~ e p a r e ~ . ~ and orally active. Recently, a detailed article by Porter et al.’ on in vivo...
OBJECTIVE To evaluate the dose-response relationship between arsenic (As) exposure and markers of oxidative damage in Bangladeshi adults. METHODS We recruited 378 participants drinking water from wells assigned to five water As exposure categories; the distribution of subjects was as follows: (1) less than 10 μg/L (n=76); (2) 10 to 100 μg/L (n=104); (3) 101 to 200 μg/L (n=86); (4) 201 to 300 ...
Owing to the importance of clean and fertile agricultural soil for the continued existence of man, this study investigated the concentrations of total petroleum hydrocarbons (TPHs), polycyclic aromatic hydrocarbons (PAHs) and some heavy metals in soils and selected commonly consumed vegetables and tubers from oil-polluted active agricultural farmland in Gokana of Ogoniland, Rivers State, Nigeri...
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