growth and productivity of plants are mainly affected by various environmentalfactors in different ecosystems and natural habitat in the world. this research aims to studythe existing relationships between the phytosociology characteristics of thymuskotschyanus and environmental factors in order to find the most important factorsgoverning development of the species in middle taleghan rangelands...

Spring applications require materials that possess a low Young’s modulus and high strength, in addition to having a lower alloying percentage for reduced costs. In this study, a new low-cost ¢-type titanium alloy with a lower alloying percentage than conventional ¢-type alloys was developed for spring applications using [Al]eq and [Mo]eq. The alloy is located in the near-¢ region and its ¢ tran...

barhee is considered as one of the most popular date cultivars worldwide. its fruits, because of low tannin content and low astringency can be, and are consumed at khalal stage. due to its high water content and respiration rate, khalal date fruit is very perishable and of low storage life. limited supply, and difficulties involved in marketing of this product, makes one think of new packaging ...

freezing stress affected some vital processes of plant, and causing disturbance on the plant growth. in order to study the effect of low temperatures on freezing tolerance of chickpea (cicer arietinum l.) a factorial experiment with 4 replications carried out using 3 chickpea genotypes (mcc496، mcc763 and mcc798) and 7 freezing temperatures (-4, -6, -8, -10, -12, -14 and -160c). explants were c...

the aim of this study was to examine the effects of two kinds of concurrent training on body fat percentage, body mass index (bmi), maximal oxygen consumption, body upper strength, body lower strength, total cholesterol, triglyceride and low- and high-density lipoprotein-cholesterol in non-athlete overweight boys. for this purpose, 40 non-athlete overweight boys (mean age 15.33 ± 0.58) were sel...

in order to evaluate the efficiency of empirical competition models for simulation of sugar beet (beta vulgaris l.) yield at interference with redroot pigweed (amaranthus retroflexus l.), a factorial experiment based on randomized complete block design with three replications was carried out. factors were weed densities (d1=1, d2= 4, d3= 8, d4=12 and d5=16 plants m-1 of row) and relative time o...