In order to study the genetic diversity of 75 Iranian rice genotypes (45 Iranian land race, 25 improved cultivars, and 5 exotic cultivars) with respect to their salinity tolerance at seedling stage and to determine tolerance indices, based on biomass, genotypic code and Na+/K+ ratio a factorial experiment in randomized complete block design with three replications was conducted under control an...

Given the importance of rice for food and its strategic position in the global food security, it is necessary the comprehensive study of the diversity of its germplasm to achieve high performance, quality and other important economic and agronomic traits. For this purpose, 137 rice recombinant lines from F6 population derivated from Tarom Deilamani and Saleh cultivars as maternal and paternal p...

efl/esl textbooks have been regarded as essential language teaching materials with which the learners spend about 70 up to 90 percent of their class time. the important role they play and their vast use make them not only influential in learning the language but also in shaping values and attitudes. put it another way, textbooks socialize learners using their contents (i.e. texts, illustrations...

Background and purpose: Heavy metals and their health and environmental side effects are major complications threatening food safety. Rice is one of the popular foods among people that could be contaminated by heavy metals. In this paper, Cr, Cd, and Pb concentrations were evaluated in three varieties of rice: Jamshid, Hashemi, and Mosa Tarom in Astaneh-Ashrafieh, Gilan province, Iran. Mater...

 For sustainable rice production in Iran the optimum use of production resources and the reduction of production costs are the two important issues. In this situation, water availability is a major limiting factor in sustainable rice production. Hence, changing of rice production system from lowland irrigated to aerobic production system, which is based on dry-seed sowing in non-puddled and non...