the effects of drought and salinity stress on the growth and chemical compositions pennyroyal(mentha pulegium l.) plant were investigated. this experiment was carried out in a factorial-randomized design with four replications in controlled conditions and plantlets were subject to four soil moisture regimes (40, 60, 80 and 100 of field capacity (fc)) and five salt treatments with 0, 25, 50, 75 ...

this study was conducted to explore the effects of drought stress and different levels of potassium sulfate on yield and yield attributes of grain sorghum at agriculture and natural resources research station of sistan during year of 2009. treatments were arranged in a split-plot lay out based on a randomized complete block design with three levels of drought stress as main plot (irrigation at ...

To predict the ecological consequences of climate change for a widely distributed tree species, it is essential to develop a deep understanding of the ecophysiological responses of populations from contrasting climates to varied soil water availabilities. In the present study, we focused on Pinus tabuliformis, one of the most economically and ecologically important tree species in China. In a g...

anise hyssop is a prennial herb belonging to the lamiaceae family. essential oil of this plant is used in food, pharmaceuticals, cosmetics industries as well as flavoring liqueurs. since water stress affects the growth, productivity, as well influences the active principles governing medicinal plants, in this research the effect of different water deficit stresses on such morphological traits a...

Drought stress and poor zinc (Zn) are major constraints for commercial agriculture. Their detrimental effects significantly decrease crop’s growth yield. Less water uptake disturbs the metabolic processes in plants. However, deficiency of Zn leads to inactivation many enzymes. It is well documented that cereal crops, especially wheat, susceptible drought deficiency. Scientists suggest supplemen...

wild jujube, ziziphus lotus, is a multipurpose xerophytic shrub of the rhamnaceae family widely distributed in arid and semi-arid regions of tunisia, where it occupies most soil types. the fruit is the edible part of the plant by local population. the reintroduction of this shrub requires the control of its multiplication in response to water shortage. this study aims to evaluate growth and wat...