نتایج جستجو برای: under cold stress

تعداد نتایج: 1511682  

Cold stress is an ‎important limiting factor for cereal production. Barley is a host species for arbuscular mycorrhizal fungi (AMF) with a high genetic diversity in response to cold stress. In order to explore the mechanisms for the ameliorative effect of AMF under cold stress, an experiment was undertaken using completely randomized block design with three factors including temperature treatme...

Journal: :علوم گیاهان زراعی ایران 0
بابک ربیعی مهدی بیات

to evaluate the effects of accelerated aging and cold stress on seed germination and seedling growth indices in five oilseed rape cultivars (hyola330, hyola401, hyola420, syn3 and pr401/15e), an experiment was carried out in a completely randomized design of three replications. results indicated that the cultivars were significantly different in germination percentage, seed vigour, germination ...

شهیر, محمدحسین , لطف الهیان, هوشنگ , نعمتی, محمد حسین , هرکی نژاد, محمدطاهر ,

  This experiment was designed to determine the role of vitamin E and coenzyme Q10 antioxidant on immunity of broilers in cold stress conditions. For this purpose, 500 male chicks in a completely randomized design with 5 treatments, 5 replicates and 20 chicks in each replicate were tested in 25 experimental units. Treatments were: positive control (normal conditions growth without antioxidants)...

Journal: :علوم گیاهان زراعی ایران 0
سیما سازگاری دانشجوی کارشناسی ارشد، دانشکدۀ کشاورزی، دانشگاه شیراز علی نیازی دانشیار، دانشکدۀ کشاورزی، دانشگاه شیراز

abiotic stress such as cold and drought has adverse effects on plants growth and development. abiotic stress resistance is one of the most important goals in plant breeding. this goal can be achieved through transcription factor gene transfer to plants. recent studies show many successes in improving abiotic stress resistance by use of transcription factor gene transfer. the objective of the re...

Mexican lime is one of the commercial citrus cultivars in the world, which is commonly used as a citrus rootstock in the southern regions of Iran. This cultivar is one of the most sensitive citrus cultivars to cold stress and is used as a cold-sensitive plant in many citrus studies. This study aimed to investigate the effect of melatonin (0 and 500 μM), mannitol (0 and 50 μM), acetic acid (0 an...

زرین کمر, فاطمه, فلاح, اللهیار, قربانی, ابوذر,

The rice crop is cold sensitive plant that under cold stress is more decreasing yield. Therefore, knowing defense mechanism of rice crop and low temperature is necessary. In order to, the effects of cold on some morphological and physiological characters of two rice (Oryza sativa L.) varieties (Onda and Domsiah) were studied under control treatment (day/night 28o/25o) and were treated after two...

Journal: :علوم گیاهان زراعی ایران 0
حامد کشاورز دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه تربیت مدرس، تهران سید علی محمد مدرس ثانوی استاد دانشکده کشاورزی دانشگاه تربیت مدرس، تهران فاطمه زرین کمر استادیار دانشکده کشاورزی دانشگاه تربیت مدرس، تهران آریا دولت آبادیان دانشجوی دکتری دانشکده کشاورزی دانشگاه تربیت مدرس، تهران مهدی پناهی استادیار دانشگاه زنجان کمال سادات اسیلان استادیار دانشگاه پیام نور

cold stress is considered as a restricting factor in plant production. recently, many different compounds were applied to minimize the harmful effects of stress. in this study, the effects of foliar application of salicylic acid was studied on some biochemical properties of two different cold resistant canola cultivars. salicylic acid was sprayed at four concentrations (0, 100, 200 and 400 µm) ...

Journal: :علوم گیاهان زراعی ایران 0
خزر ادریسی مریان دانشجوی سابق کارشناسی ارشد بیوتکنولوژی,دانشکده کشاورزی، دانشگاه گیلان حبیب الله سمیع زاده لاهیجی دانشیار، دانشکده کشاورزی، دانشگاه گیلان محمد مهدی سوهانی استادیار، دانشکده کشاورزی، دانشگاه گیلان سید حسن حسنی استادیار ، دانشکده کشاورزی، دانشگاه گیلان

cold stress during the beginning of the season usually causes damage to rice plants in the north of iran. in this study, the expression of four genes namely osp5cs2, osttp1, oscoin and oslti6a, was studied in 14-day-old seedlings of a cold tolerance pr genotype and a cold sensitive hashemi variety during cold stress (5°c for 24h) by means of differential display method. pcr products were quanti...

Journal: :تولید گیاهان زراعی 0
سید علی محمد مدرس ثانوی استاد گروه زراعت دانشگاه تربیت مدرس الهه منافی دانشجوی کارشناسی ارشد زراعت مجید آقاعلیخانی عضو هیات علمی سید مرتضی مدرس وامقی کارشناس آزمایشگاه

compound of 5-aminolevulinic acid (5-ala) has herbicide behavior in high concentration. while, it acts as growth regulator at low concentrations and causes resistance to various stresses incluing cold and salibity. therefore the exogenous application of 5-aminolevulinic acid was investigated to induce cold stress tolerance in young soybean plants (glycine max l.). the experiment was conducted a...

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