BACKGROUND The plant biomass and agro-industrial wastes show great potential for their use as attractive low cost substrates in biotechnological processes. Wheat straw and corn cob as hemicellulosic substrates were acid hydrolyzed and enzymatically saccharified for high xylose production. The hydrolysate was concentrated and fermented by using Saccharomyces cerevisiae and Kluyveromyces for prod...

a model of the iranian wheat market is specified and fitted to data from 1981-2008. severaldiagnostic tests were employed in the analysis to determine the specification of the model. despitethe simplicity of the model and data problems, an examination of the econometric model leads toseveral conclusions with possible important policy implications for the wheat economy in iran.the general result...

The present study was conducted with a view to analyzed growth and trend in area, production and yield of major crops of Khyber Pakhtunkhwa. A time series data from 1980-81 to 2011-12 (32 years) of major crops (wheat, maize, rice and sugarcane) were collected. The compound growth rate as well as trend analysis indicated that the area under wheat crop has decreased over the time due to shifting ...

this experiment was conducted to evaluate effects of different levels of mineral and vitamin premixes with wheat and corn base diets on performance and egg traits of laying hens. experiment carried out as 2*5 factorial include wheat and corn base diets and 5 levels of minerals and vitamin premixes (0, 0.25, 0.35, 0.45 and 0.55 percentage) in a completely randomized design with 360 hi-line (w36)...

Release of genetically modified (GM) wheat will require segregation of GM and non-GM wheat to satisfy international markets. Before GM wheat is released, it will be important to understand the fate of a GM trait within the agronomic production system. The objective of this study was to evaluate the effect of gene flow and selection pressure on the frequency of GM traits in non-GM wheat and whea...

Many sustainable agronomical practices can be adopted to contain environmental risks of crop production and, at the same time, sustain yield and quality. In this framework, the aim of this research was to study the effects of continuous cropping (CC) and crop rotation, tillage and fertilization strategies on durum wheat (Triticum durum Desf.) production. The responses of soil properties we...

Bioethanol production from lignocellulosic raw materials involves process steps like pre-treatment, enzymatic hydrolysis, fermentation and distillation. In this study, wheat straw was explored as feedstock for on-site cellulase production by T. reesei 3EMS35 mutant, and as a substrate for second generation bioethanol production from baker yeast. Scanning electron microscopy (SEM) and X-ray diff...

Seed production of annual weeds persisting through cropping phases replenishes/establishes viable seed banks from which these weeds will continue to interfere with crop production. Harvest weed seed control (HWSC) systems are now viewed as an effective means of interrupting this process by targeting mature weed seed, preventing seed bank inputs. However, the efficacy of these systems is directl...

The production of extracellular amylase by the halotolerant fungus Penicillium sp. was statistically optimized in a submerged cultivation. Maximum enzyme production was obtained after two days of incubation in a medium containing 10% (w/v) NaCl, in addition to MgSO .7H O 1% and 1% (w/v) of 4 2 starch. The optimum pH for growth and enzyme production was 4. Partial characterization of the crude e...

Journal of Plant Registrations, Vol. 3, No. 1, January 2009 51 W heat streak mosaic virus (WSMV) is one of the most common, and devastating, diseases impacting wheat (Triticum aestivum L.) production in the western Great Plains of North America. Annual production losses of 5% have been estimated, although severe local WSMV infection can result in complete crop failure (French and Stenger, Regis...