نتایج جستجو برای: water stress

تعداد نتایج: 964068  

جهانسوز , محمد رضا, رحیمی, اصغر, رحیمیان مشهدی, حمید,

In order to investigate yield, yield components and quality traits of P. ovata and P. psyllium under water stress and plant density, two experiments were conducted at the Agriculture Research Field, University of Tehran, Karaj, in April 2005 and 2006. Two Factorial experiments based on randomized complete block design with three replications were used. The treatments were three levels of water ...

Journal: :journal of agricultural science and technology 2010
r. mohammadian f. r. khoyi h. rahimian m. moghadam k. ghassemi-golezani

limited water for irrigation and the coincidence of early growth of sugar beet (beta vulgaris l.) with the late growth of winter cereals in the northeast (ne) of iran, force farmers, to allocate their limited irrigation water to the cereal crops and thus their sugar beet crop is subjected to an early water stress. finding cultivars which are able to withstand early water stress without a si...

Journal: :Tree physiology 1996
Jo Sasse Roger Sands

We compared responses of cuttings and seedlings of Eucalyptus globulus Labill. subsp. globulus to water stress in a 9-week greenhouse experiment. Optimal water availability was achieved by watering pots daily to field capacity, and two water stress treatments were imposed by reducing watering frequency to every 6 or 14 days. Within each treatment, height growth rates of cuttings and seedlings w...

Nitrogen has an important role for supplying carbon skeletons which needs for producing compatible solutes and stress tolerance enzymes. Water deficit affects nitrogen fixation in legums. So we studied the effect of various nitrogen sources on physiological, and biochemical features of bean under water stress. This experiment was conducted as factorial based on completely randomized design with...

Journal: :علوم گیاهان زراعی ایران 0
اعظم کدخدایی دانشکده کشاورزی، دانشگاه صنعتی اصفهان پرویز احسان زاده دانشکده کشاورزی، دانشگاه صنعتی اصفهان

studying the physiological responses of linseed genotypes to water deficit stress may be helpful in recognizing the linseed resistance mechanisms to the latter stress factors. therefore, a split plot rcbd field experiment was conducted with three replications to explain interrelations of leaf chlorophyll, proline and soluble carbohydrates content and grain yield of six linseed genotypes under t...

Journal: :basic and clinical neuroscience 0
mina ranjbaran neuroscience research center, baqiyatallah (a.s.) university of medical sciences, tehran, iran. hassan aghaei neuroscience research center, baqiyatallah (a.s.) university of medical sciences, tehran, iran. vahdat hajihoseinlou neuroscience research center, baqiyatallah (a.s.) university of medical sciences, tehran, iran. hedayat sahraei neuroscience research center, baqiyatallah university of medical sciences, tehran, iran. katayoon ranjbaran farhangian university, branch shahid bahonar, hamedan, iran

introduction: the role of different parts of the extended amygdala in metabolic signs of stress is not well understood. in the present study, we decided to evaluate the impact of the shell part of nucleus accumbens (nac) on metabolic disturbance induced by electro foot shock stress using transient inactivation method in the rat.  methods: male wistar rats (w: 230-250 g) were canuulated unilater...

ژورنال: علوم آب و خاک 2003
حسین غدیری, , مجید مجیدیان, ,

In order to investigate the effects of different nitrogen fertilizer levels and water stress during milky and dough stages on grain yield, yield components and water use efficiency of corn hybrid SC 704 (late maturing, non prolific and dent type), a field study was conducted. The factorial design of the study comprised of a randomized complete block with four replications. Four levels of nitro...

Journal: :چغندرقند 0
محسن بذرافشان مربی پژوهشی بخش تحقیقات چغندرقند مرکز تحقیقات کشاورزی و منابع طبیعی فارس

for evaluation of drought tolerance of sugar beet genotypes by assessment of the drought tolerance indices under mild and severe stresses, furrow irrigated field experiments were carried out at zarghan research station in 2002 and 2004, and at motahari research station (located inkaraj) in 2002, 2003, and 2004. the experimental design was split plot, with a randomized complete block arrangement...

Journal: :Plant physiology 1985
R J Newton S Bhaskaran J D Puryear R H Smith

Eight cultivars Sorghum bicolor (L.) Moench were grown as callus cultures under induced, prolonged water stress (8 weeks), with polyethylene glycol in the medium. Concentrations of soluble carbohydrates and organic acids in callus were measured at the end of the growth period to determine differences in response to prolonged water stress. Sucrose, glucose, fructose, and malate were the predomin...

Journal: :پژوهش های حبوبات ایران 0
راهله احمدپور نظام آرمند سعید رضا حسین زاده مهدی رژه

introduction lentil (lens culinaris medik.) is a good source of protein, carbohydrates as well as minerals, vitamins and unsaturated fatty acids as such it plays an important role in the human diet and cultivated worldwide. water shortage is one of the most important abiotic factors that can limit morphological, physiological, yield, and plant distribution. legumes such as lentil are highly sen...

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