نتایج جستجو برای: thousand grain mass
تعداد نتایج: 583844 فیلتر نتایج به سال:
an experiment was conducted to determine the effect of five plants densities (100,200,300,400 and 500 grain m-2) on yield and its components in three rain fed barley cultivars (ezeh, mahor and dopar). a factorial experiment based on randomized complete block design with three replications was conducted in agricultural research center of khorramabad city in the east of iran (in 2006-2007). in th...
Limited information is available on the effect of residues rates and slope direction on dryland wheat (Triticum aestivum L.) yield. This study was carried out to determine the effects of residues rates and tillage direction on grain yield and yield components of the Sardary wheat in a dryland region in Zanjan. Five wheat residues rates (0, 25, 50, 75 and 100% surface cover) were applied and i...
Regression rate is one of the most important parameters in designing of hybrid rocket motors which is dependant into many factors like oxidant mass flux, grain length and chamber pressure. In this article, the effects of grain length and chamber pressure are considered besides of oxidant mass flux using HTPB-N2O lab-scale hybrid motor. Because of dependency of regression rate into three factors...
In order to study the tolerance mechanism of spring bread cultivars to wild oat competition, an experiment was conducted in research farm of Ramin Agricultural and Natural Resources University of Khouzestan as strip block with three replications during 2010-2011 growing season. Experimental factors were wild oat densities includ 0 (as control) and 80 plant/m2 as horizontal plots and ten wheat c...
introduction barely (hordeum vulgare) is the fourth most important cereal after wheat, corn and rice. regarding the role of breeding to increase barley grain yield a large number of studies have been done in different countries. however, a few studies have been performed across golestan province, in iran. therefore, this study was conducted to know what barley traits have changed with grain yie...
We developed an efficient computation scheme for the phase-field simulation of grain growth, which allows unlimited number of the orientation variables and high computational efficiency independent of them. Large-scale phase-field simulations of the ideal grain growth in two-dimensions (2D) and three-dimensions (3D) were carried out with holding the coalescence-free condition, where a few tens ...
Fourteen sesame lines that have preferred in primary evaluation, with local mass of Birjand (as test) and Ooltan cultivar (as overall test) were compared for two years in completely block design with 4 replication. Traits measured in this study were germination percent, number of flower per axis, number of sub branch, capsule length, plant height, number of capsules per plant, height of first c...
Despite general effect of salicylic-acid (SA) in improving plant growth andproductivity in saline conditions, there have not been unanimity about the bestconcentration. In this 2-yr field study the effect of different SA concentrations(0, 0.5, 1.0, 1.5 and 2.0 mM) was examined on growth, grain yield and yieldcomponents of barley under two non-saline (2 dS m-1) and saline (12 dS m-1)conditions. ...
In Laboratory Astrophysics at Leiden University a laboratory analog for following the chemical evolution of interstellar dust in space shows that the dust contains the bulk of organic material in the universe. We follow the photoprocessing of low temperature (10 K) mixtures of ices subjected to vacuum ultraviolet radiation in simulation of interstellar conditions. The most important, but necess...
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