نتایج جستجو برای: yield

تعداد نتایج: 194156  

2001
Dale D. Huff Bill Hargrove M. Lynn Tharp Robin Graham

Management of forest vegetation and its relationship to water yield has long been a lively issue. The USDA Forest Service has been criticized in northern Colorado for failing to have a forest management strategy that includes consideration of water yield for downstream users, including fish and wildlife (Swanson 1998). Some say it is possible to get substantial increases in runoff with modest v...

Journal: :Circulation. Arrhythmia and electrophysiology 2016
David E Haines

The efficacy of catheter ablation has improved dramatically over the past 3 decades as our understanding of ablation lesion formation has led to technological advances that have resulted in the ability to reliably create large and deep lesions. In the early years, operators were constrained during radiofrequency (RF) ablation with 2-mm nonirrigated electrodes by the tendency for the electrode–t...

Journal: :international journal of advanced biological and biomedical research 2013
mostafa eidi kohnaki ghaffar kiani ghorbanali nematzade

in order to evaluate the relationship between morphological characters in rice lines two populations at f3 generation were grown in research field of agricultural sciences and natural resource university, sari, iran, during 2012. statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...

Journal: :international journal of environmental research 0

bioethanol made from lignocelluloses biomass resources, provides unique environmental, economic and strategic benefits, when compared to gasoline as automobile fuel. to be able to substitute gasoline by bioethanol, one should over come many obstacles, including the production of furfural and hydroxyl-methyl furfural, which are produced when cellulosic materials are treated in the presence of ac...

This study was conducted to determine whether selecting an optimum sowing date couldimprove yield. The experiment consisted of sowing a film-covered, drip-irrigated cotton field onfour sowing dates from April to May in 2011-2012 at the Agrometeorological ExperimentalStation of Wulanwusu, which was in an arid region of north-western China. Late sowing datesproduced less yield and water-use effic...

Journal: :پژوهش های حبوبات ایران 0
بیطرف بیطرف خدامباشی خدامباشی هوشمند هوشمند

the purpose of this study was to describe the association between grain yield and its components. the experiment was conducted in a randomized complete block design with three replicatsions. results of analysis showed that similar trends were observed for genotypic and phenotypic correlations and in most cases, the value for genetic correlation was greater than phenotypic value. 100-seed weight...

Journal: :journal of agricultural science and technology 2012
m. khodambashi n. bitaraf s. hoshmand

in order to estimate heritability and gene action for grain yield and its related traits in lentil, six basic generations were evaluated in a randomized complete block design with three replications in a field experiment. besides seed yield per plant, plant height, pod length, and 100-seed weight, the number of pods per plant, primary branches, clusters per plant, nodes per main stem, secondary...

Journal: :iran agricultural research 2010
m. j. bahrani m. shomeili sh. zande-parsa a. kamgar-haghighi

limited information is available on water and nitrogen (n) management of sugarcane (saccharum officinarum l.) in khuzestan, southwestern iran, where this crop is currently and extensively grown under heavy irrigation and n fertilization. therefore, a field experiment was conducted from september 2000 to march 2002 at the research department of karoon agro-industry in khuzestan to determine the ...

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