in order to study the canopy temperature effect on protein and soluble sugar, oil percentage and yield of soybean in different planting dates, an experiment was conducted as factorial based on randomized complete block design with three replications in karaj and moghan areas during 2012-13. the studied treatments were included cultivar (‘williams’ and ‘l17’) and planting date (5th of may, 5th o...

Attapulgite clay (AC), which is rich in good adsorption, catalysis, rheology and heat resistance, an important mineral resource. However, the roles of AC regulating stress tolerance plants have not been investigated. In this study, culture pot experiment was used to analyze effects applied into soil on growth physiological metabolism okra plants. The significantly enhanced salt drought Componen...

this study was carried out to evaluate the changes in some important cell parameters under water limitation in sorghum genotypes. a factorial experiment was conducted based on randomized completely design in greenhouse, in university of mohaghegh ardabili in 2014. treatments were water stress at levels of 85, 65, 45 and 25 percent field capacity in and three genotypes of forage sorghum (kfs2, k...

this study was aimed to assess of priming effects on soluble proteins and antioxidant enzymes of as a nigella sativa medicinal plant under different levels of salinity and drought. two greenhouse factorial experiments with three replicated randomized complete block design were conducted.treatments included five levels of priming (potassium nitrate 1% and salicylic acid 0.2 mm in 6 hours, potass...

Low temperature is one of the abiotic factors limiting plant growth and productivity. Yet, knowledge about sex-related responses to low temperature is very limited. In our study, the effects of low, non-freezing temperature on morphological, physiological, and ultrastructural traits of leaves in Populus cathayana Rehd. males and females were investigated. The results showed that 4 °C temperatur...

Low temperatures have seriously affected crop growth owing to climate change and frequent extreme weather. Low-temperature disasters easily affect the early-growth stages of planted soybeans in Northeast China. In present study, comprehensive evaluation method using low-temperature (4 °C) simulation at soybean germination seedling was used compare cultivars. The results revealed that low inhibi...

Osmopriming with PEG has potential to improve seed germination, seedling emergence, and establishment, especially under stress conditions. This research investigated germination performance, seedling establishment, and effects of osmopriming with PEG on physiology in sorghum seedlings and their association with post-priming stress tolerance under various soil moisture stress conditions. Results...

drought is considered as one of the most important limiting factors for oil seed canola plant(brassica napus l.) growth and productivity in iran. on the basis of root and shoot dry weight asaffected by water stress exerted by peg 6000, out of 9 canola cultivars, a relatively tolerant (cv. aghaii)and a sensitive cultivar (cv. po4) were selected. their responses to low water potential with respec...

introduction plant responses to environmental stress have a central role in agricultural production. responses results from events occurring at all levels of the organization, from biochemical reactions in cells to whole plant physiology. many plants are injured when exposed to low non-freezing temperatures. however, data on the effects of night temperatures are scarce. on the other hand, nitri...