Barley (Hordeum vulgare) is a major crop, grown worldwide and in a wide range of climatic conditions. Despite its importance as a crop species, little is known about the population genetics of barley and the effects of bottlenecks, adaptation, and gene flow on genetic diversity within and between landrace populations. In areas with highly developed agriculture, such as Northern Europe, these ty...

We propose an econometric model of crop choice in which a farmer’s profit-maximizing crop depends on physiological crop attributes interacted with local soil and climate characteristics. We estimate the model using county-level data on average crop choices for 1986–2008. We find that attributes of chosen crops correlate as expected with geographic variation in soil and climate characteristics. ...

crop residue is a non-chemical method of weed control in agricultural sustainable systems. this research was conducted at the alarogh site of ardabilto evaluate the effect of integrated use of mulch and herbicide on weed emergence and growth in potato in 2007. treatments were four levels herbicide including: (1) paraquat [n,n'-dimethyl-4,4'-bipyridinium dichloride] herbicide as pre-pl...

Abstract To improve the agricultural environment, utilization of biochar and organic materials from paddy fields gaining importance. This is because long-term use inorganic fertilizers aggravates soil also rice a major source CH 4 N 2 O emissions during cultivation which involves continuous flooding. Recently, application to has received increasing attention due their potential benefits related...

Previous studies have shown that there is considerable population structure in cultivated barley (Hordeum vulgare L.), with the strongest structure corresponding to differences in row number and growth habit. U.S. barley breeding programs include six-row and two-row types and winter and spring types in all combinations. To facilitate mapping of complex traits in breeding germplasm, 1816 barley ...

It is important to understand the underlying factors that lead to shifts in soil microbial communities, not simply for the characterization of these complex biotic systems, but also to understand the impact that changes in microbial community composition may have on terrestrial ecosystems. In this study, the impact of genetically different potato (Solanum tuberosum) plants growing in arable soi...

greenbug isolate avirulent to Wintermalt. Subsequent work by Ogecha et al. (1992) confirmed that biotype G Most biotypes of the greenbug [Schizaphis graminum (Rondani)] was less successful in feeding on Wintermalt compared are extremely damaging to barley (Hordeum vulgare L.). However, with other biotypes. When compared with biotypes E greenbug biotype G has been reported to be unable to succes...

Introduction: Thirst is one of the main complaints during Islamic fasting. As bread is the staple food among most Muslims, evaluating its impact on thirst is important. In this study, we investigated the effect of licorice-enriched barley bread compared to barley bread and white wheat bread. Methods: This clinical trial was performed on three consecutive days during Itikaf ceremony. Data were g...

The field experiment was carried out at the Experimental Station of Vytautas Magnus University Agriculture Academy (Lithuania) in 2017–2019. aim study to determine and compare weed spread caraway crop productivity sole (spring barley, spring wheat, pea, caraway), binary barley-caraway, wheat-caraway, pea-caraway) trinary barley-caraway-white clover, wheat-caraway-white pea-caraway-white clover)...

Based on the mathematical model of crop, an algorithm for quantitative assessment agricultural risk crops cultivated in specific soil and climatic conditions has been developed. Classification risks according to crop losses is proposed, similar gradation adopted insurance payments, but more detailed. It established that indicators do not depend level nutrition, each year are determined only by ...