نتایج جستجو برای: leaf weight ratio and peroxidase activity were significantly decreased in salinity treatment other traits as well leaf water content

تعداد نتایج: 22359031  

ریحانی‌تبار, عادل, محمودی, شهاب, نجفی, نصرت‌اله,

Due to low organic matter content in most of the cultivated soils of Iran and occurrence of drought stress in plants because of low precipitation, application of sewage sludge compost has been recommended for increasing soil organic matter content and improving soil fertility, increasing crop tolerance to water deficit and improving crop yield. So, in this study, the effects of soil moisture an...

Journal: :علوم باغبانی 0
معصومه عباسی عبدالرسول ذاکرین مختار حیدری

abstract mango is one of the most important tropical fruits in iran and salinity is an important problem to mango production in ‘hormozgan’ province and other mango growing areas in iran. at present experiment the effects of saline irrigation water of different sodium chloride concentration on vegetative growth and ion content of mango was evaluated. treatments comprised two type of cultivars (...

Journal: :بوم شناسی کشاورزی 0
بهروز اسماعیل پور پریسا جلیل وند جواد هادیان

water deficit stress permanent or temporary limits the growth and distribution of natural vegetation and performance of plants more than other environmental factors. in order to investigate the effect of drought stress and mycorrhizal-arbuscular fungi inoculation on the growth and yield of savory (satureja hortensis l.) a factorial experiment based on completely randomized design were conducted...

Journal: :علوم باغبانی 0
رحمت اله غلامی کاظم ارزانی عیسی ارجی

an experiment was conducted to determine the effect of paclobutrazol (pbz) and different irrigation amount on growth of aerial parts, leaf minerals and root performance in young olive plants cv. ‘manzanillo’ in the department of horticulture, faculty of agriculture, tarbiat modarres university in 2000. a split plot experiment in time was used based on a completely randomized block design with f...

Chilling stress usually can be seen in tropical and subtropical crops or in crops which are grown in afore mentioned areas. Generally, the crops are very sensitive to chilling stress during their active growth and early stages of their development. In this research, a study on the effects of chilling stress and salicylic acid on physiological and biochemical traits of corn hybrid single-cross 4...

Journal: :تولید گیاهان زراعی 0
زهرا جوادی پور دانشجوی کارشناسی ارشد گروه زراعت و اصلاح نباتات، دانشگاه یاسوج محسن موحدی دهنوی استادیار گروه زراعت و اصلاح نباتات، دانشگاه یاسوج حمیدرضا بلوچی استادیار گروه زراعت و اصلاح نباتات، دانشگاه یاسوج

to comparison the photosynthetic parameters and leaf chlorophyll content and fluorescence of safflower (carthamus tinctorios l.) cultivars under salinity stress, a pot experiment was carried out as factorial based on completely randomized design with three replications in summer 2011 in university of yasouj. first factor included four salinity levels (zero, 75, 150 and 225 mm (formed as 20 to 1...

Journal: :علوم باغبانی ایران 0
سمیه کوکبی دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه تبریز سید جلال طباطبایی استاد تغذیه معدنی گیاهی دانشکده کشاورزی دانشگاه تبریز رحیم نقش بند حسنی استادیار دانشکده کشاورزی دانشگاه تبریز

effects of different k/ca ratios on the growth, yield and physiological characteristics in galia (cucumis melo var. reticulatus l. naud. cv. galia) grown in hydroponics were evaluated. the experiment was arranged in a completely randomized design of three replicates. melon seeds were sown in a medium containing perlite and vermiculite (3:1 v:v) and then irrigated with water containing different...

Journal: :پژوهش های تولید گیاهی 0
مرتضی نصیری دانشجوی دکتری موسی مسکرباشی هیات علمی پیمان حسیبی هیات علمی همت اله پبیردشتی هیات علمی

background and objectives: rice plant requires abundant water during its growth cycle and usually faced with water deficit. drought  stress alters the allocation assimilate , root and shoot growth during the vegetative period and also lower tillering, death tillers, lower plant height and flowering delay. the aim of this study was to screen different iranian genotypes and some lines from irri w...

Ali Tehranifar Navid Vahdati Seyed Hossein Neamati Yahya Selahvarzi

Trifolium spp. are native plants in Iran exhibiting good ground cover po-tential. Salinity is a major environmental stress and today, 20% of the world cultivated areas and nearly half of all irrigated lands are affected by salinity. The main aim of this research was to study morphological and physiological adaptations of these native species under different salinity levels for urban landscape u...

تاج آبادی پور, احمد, حکم‌آبادی, حسین, زادصالحی, فهیمه, مظفری, وحید,

Abstract In calcareous and saline soils, the adverse effect of some ions such as bicarbonate, boron, magnesium, and especially sodium, and the imbalance of nutrients’ concentrations are essential factors which reduce plant growth. A greenhouse experiment was conducted to study the effect of sodium (Na) and magnesium (Mg) on some growth traits and chlorophyll content of pistachio seedlings (cv....

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