the purpose of this study is to determine spatial dependency pattern of systematic risk of dry land wheat production in iran, using spatial autoregressive models. to this end, spatial weighted contiguity matrix was constructed based on the delaunay triangularization method, and correlation coefficient among these neighbors were estimated using spatial autoregressive models. in addition, the rol...

Es t ima te s of increases in future agricultural production in response to increases in carbon dioxide (C02) concentrations in the atmosphere are often based on the beneficial physiological effect of C02 enrichment on plant growth, especially in Ca plants. However, these estimates fail to consider the negative impact of ozone (03) air pollution on crop production. Increases in tropospheric con...

The main objective of this study was to assess the impact of farmer field schools on adoption of technical packages of wheat production in Gezira Scheme, Sudan. Field survey was used to collect data from 50 FFS-participants of two schools (25 from each school), and also equal number from Non-FFS participants were selected for comparison. Close ended questionnaire was used in data collection. Th...

Solid state fermentation with Trametes versicolor was carried out on agricultural wastes containing bisphenol A (BPA). It was found that BPA degradation was along with the occurrence of laccase production, and wheat bran and corn straw were identified as suitable mixed substrates for laccase production. In the process of BPA degradation with T. versicolor, laccase activity increased rapidly at ...

BACKGROUND Genomic and proteomic analysis are potent tools for metabolic characterization of microorganisms. Although cellulose usually triggers cellulase production in cellulolytic fungi, the secretion of the different enzymes involved in polymer conversion is subjected to different factors, depending on growth conditions. These enzymes are key factors in biomass exploitation for second genera...

Objective: Wheat is the most important crop in Iran. Self sufficiency in wheat production is one of the economic and food safety policies in the country. In spite of the efforts which have been made in this area, the mean of wheat yield in Iran is less than its world average. Methods: In order to identifying of the high yielding wheat lines with optimal characteristics and to determine the trai...

Rates of production and oxidation of ruminal acetate were measured in young sheep (1) infected with T. colubriformis; (2) kept worm-free and pair-fed to (1); and (3) kept worm-free and given feed ad lib. Both voluntary food consumption and the production rate of acetate were reduced by up to 76 per cent in sheep on treatment (1) compared with (3). Acetate production rate was 30 per cent lower i...