development of a green belt with suitable plant species around the source of emission can mitigate the atmospheric contamination. selection of such plant species are required to combat air pollution based on their tolerance level. present study was undertaken to evaluate the tolerance level of higher plants in east of esfahan city, iran, during 2011 in terms of assessing air pollution tolerance...

The need to accelerate the selection of crop genotypes that are both resistant to and productive under abiotic stress is enhanced by global warming and the increase in demand for food by a growing world population. In this paper, we propose a new method for evaluation of wheat genotypes in terms of their resilience to stress and their production capacity. The method quantifies the components of...

changes in chlorophyll florescence is one of the physiological responses of plants to waterlogging stress. due to easily measured in field and its inexpensive and non-destructive characteristics, it is one of the best ways to assess different genotypes tolerance to stresses. in this experiment, trends of chlorophyll fluorescence index (fv/fm) of ‘satsuma’ mandarin (citrus unshiu) on seven roots...

Abstract The objective of this work was to evaluate the effects brassinosteroid on chlorophyll a fluorescence parameters, SPAD index, and leaf succulence in young tomato (Lycopersicon esculentum) plants under salt stress. experimental design randomized complete block, 5×2 factorial arrangement - five levels water salinity (0.5, 1.5, 3.0, 4.5, 6.0 dS m-1) × two rates 24-epibrassinolide (0 10-6 m...

the effect of wheat-sorghum flour ratio (0, 25, 50, 75 and 100%) on viscoelastic and farinographic behaviour of dough was investigated. constants of peleg - normand model and the stress relaxation (% sr) was calculated for the variables and the correlation between farinograph characteristics and stress relaxation test parameters were evaluated. the results showed that with increasing the ratio ...

introduction: different mechanisms are involved in stress induced analgesia (sia) and hyperalgesia (sih). repeated stress induces development of tolerance to sia. the role of hpa axis and gs signaling pathway in these effects are investigated in the current study. methods: forced swim stress (5 min/day) in water (20±1 ºc) was employed to adult male wistar rats (200-250 g). the nociceptive thres...

Passive heat stress increases core and skin temperatures and reduces tolerance to simulated hemorrhage (lower body negative pressure; LBNP). We tested whether exercise-induced heat stress reduces LBNP tolerance to a greater extent relative to passive heat stress, when skin and core temperatures are similar. Eight participants (6 males, 32 ± 7 yr, 176 ± 8 cm, 77.0 ± 9.8 kg) underwent LBNP to pre...