ranking the viewpoint of experts and farmers is an approach to determine the factors causing the yield gap. for this purpose, two different questionnaire types but with same questions designed for both agricultural specialists and farmers. after answering, the questionnaires of agricultural experts and farmers were analyzed through ahp and entropy techniques, respectively. both techniques deter...

The factors which influence ethanol yield are: the quantity of fermenting sugars from raw material, the heating temperature of the mashes, the fermentation time, the distillation parameters. Out of the already-mentioned factors, the heating temperature of the mashes and the fermentation time have been studied. From the analyzed data it has been found that the highest percentage of alcohol can b...

in order to study of genetic diversity in 35 lentil genotypes in some morphophenological   traits, yield and yield components, and determine the relationships between different traits by multivariate statistical methods, an experiment was conducted as augmented design in 4 blocks in 2012. the results of descriptive statistics showed that many of traits had considerable variability. the results ...

BACKGROUND Working at high solids (substrate) concentrations is advantageous in enzymatic conversion of lignocellulosic biomass as it increases product concentrations and plant productivity while lowering energy and water input. However, for a number of lignocellulosic substrates it has been shown that at increasing substrate concentration, the corresponding yield decreases in a fashion which c...

to achieve high seed yield of rapeseed varieties under semi cold rainfed conditions; twenty rapeseed varieties were compared in randomized complete block design with three replications in sararood agricultural research station for two years. combined analysis results indicated that there were significant differences at 5% probability level among years for number of days to start of flowering, n...