in order to evaluate drought tolerance of cultivars and advanced grain sorghum lines, an experiment was conducted as split-plot on randomized complete blocks design with three replications at experimental field of seed and plant improvement institute, karaj in 2009. three levels of irrigation regimes including normal irrigation (ir0=60 mm), moderate stress (ir2=120 mm) and sever stress (ir3=180...

the process of adaptation to cold is an important mechanism in wheat cultivars to tolerate cold stress. this work was aimed to calrify the relationship between vernalization requirement with cold tolerance by assessing physiological changes in cold susceptible spring and tolerant winter wheat (triticum aestivum, cvs. kohdasht and cheyyene, respectively) in environmentally controlled conditions,...

understanding of physiological responses of salt tolerance might be lead to identify main salt tolerance mechanisms and essential approaches for improving grain yield stability, and also to select salt tolerant wheat cultivars. thus, the effects of salinity were investigated on grain yield and some of the characteristics related to salt tolerance. six wheat cultivars (roshan, kavir, karchia, ga...

According to the American Society of Mechanical Engineers [1], tolerance is the total amount by which a specific dimension is permitted to vary from its nominal value. Tolerance allocation, also called tolerance synthesis, is carried out at the process planning stage in order to distribute the component’s design-specified tolerances, also called blue print (BP) tolerances, among the various ope...

Applications in the field of capital goods make specific requirements in terms of efficiency, fault tolerance, and verifiability—and therefore of the overall quality of use. Visual design—regarded as something derived logically from the functional stipulations and not just as an accessory to be applied later—contributes to this. The link between functional requirement and formal design will be ...

for evaluation of drought tolerance of sugar beet genotypes by assessment of the drought tolerance indices under mild and severe stresses, furrow irrigated field experiments were carried out at zarghan research station in 2002 and 2004, and at motahari research station (located inkaraj) in 2002, 2003, and 2004. the experimental design was split plot, with a randomized complete block arrangement...