نتایج جستجو برای: frost penetration dept
تعداد نتایج: 49711 فیلتر نتایج به سال:
cold tolerance is an adaptative mechanism that plants in temperate climates require to survive and grow in suboptimal temperatures. exposed plant to low temperature produces a myriad of measurable changes in biochemical characters that are often highly correlated with plant cold tolerance. a key element of cereal adaptation to cold is represented by the capacity for physiological adjustments ...
Hematological Research Group, Dept of Clinical Medicine; Dept of Community Medicine; Brain and Circulation Research Group, Dept of Clinical Medicine, University of Tromsø, Tromsø, Norway; Section for Epidemiology, Dept of Public Health, Aarhus University, Aarhus, Denmark; Division of Internal Medicine; Dept of Neurology and Clinical Neurophysiology, University Hospital of North Norway, Tromsø, ...
frost occurrence during plant growth created special conditions to evaluate the effects of planting date on dry matter content and agronomical characteristics of potato cultivars influenced by natural frost in field conditions. a split-plot experiment with three replications was carried out to compare three planting dates, as main plot, from 1 to 21 november with 10 day intervals and four culti...
This work develops a statistical model to assess the frost risk in Rafsanjan, one of the largest pistachio production regions in the world. These models can be used to estimate the probability that a frost happens in a given time-period during the year; a frost happens after 10 warm days in the growing season. These probability estimates then can be used for: (1) assessing the agroclimate risk ...
It is well known that the characteristics of concrete components greatly affect the durability of high strength/high performance (HS/HP) concrete against frost action. Undoubtedly, precise recognition of this relationship leads 
to appropriate selection of the type and proportions of concrete components in any particular project. In the current study, the aim is to investigate the possibilit...
It is well known that the characteristics of concrete components greatly affect the durability of high strength/high performance (HS/HP) concrete against frost action. Undoubtedly, precise recognition of this relationship leads to appropriate selection of the type and proportions of concrete components in any particular project. In the current study, the aim is to investigate the possibility ...
چکیده سرده بومادران(achillea) از تیره کاسنی(compositae) در ایران 19 گونه گیاه علفی و اغلب معطر دارد. براساس منابع معتبر در طب سنتی تعدادی از آنها بعنوان گیاهان داروئی برای بندآوردن خون و علاج زخمهایی که با خونریزی همراه بوده است مورد استفاده قرار می گرفته اند. گیاهان سرده بومادران، به علت داشتن ترکیبات فعال زیستی از جمله آلکالوئیدها، گلیکوزیدها، روغنهای فرار و ... مورد توجه محققان می باشند. ...
Selection of frost tolerant cultivars and understanding the mechanisms of frost hardiness could help to improve freezing resistance in olive plants. Olive cultivars may differ in frost hardiness due to differential survival of specific organs. The aim of this study was to screen different olive cultivars based on their stomatal density and metabolic modifications under cold conditions. The ‘Zar...
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