in order to study the effect of water deficit stress at different growth stages on yield and seed oil quality of rapeseed cultivars, a field experiment was conducted as split-plot in a randomized complete block design arrangement with three replications in 2009-2010 growing seasons in abarkouh in iran. four levels of irrigation were located in the main plot including, (i1) normal irrigation bas...

Abstract In plants, a fascinating set of post-fertilization events result in the development dispersal unit known as seed. During maturation phase, seeds accumulate storage reserves and acquire desiccation tolerance, followed by an increase seed vigour during drying. Physiological (or mass) maturity may be attributed to stage when maximum dry matter accumulation has occurred, marking end seed-f...

OBJECTIVE To provide clinically meaningful, normative reference data that describe the timing of sexual maturity indicators among a national sample of US children and to determine the degree of racial/ethnic differences in these estimates for each maturity indicator. METHODS Tanner staging assessment of sexual maturity indicators was recorded from 4263 non-Hispanic white, black, and Mexican A...

Abstract The aim of this research is to present a simulation model for reducing economic damages of mechanized wheat harvesting in the weather conditions of Khuzestan province and similar areas. The simulated model is composed of three sub-models, for determining of the appropriate working hours, grain losses, and economic sub-model. In order to determine the appropriate working hours, a mathem...

A single measurement is useful for determining how far a crop has progressed through grain development, and whether it reached physiological maturity. Grain development commonly assessed by using subjective, qualitative methods that describe the look feel of kernel or colour straw. Physiological maturity in cereal crops can be determined more accurately moisture content; however, content whole ...