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stress
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  胁迫
    Cloning of Key Genes during Osmotic Stress Signal Transduction and Genetic Transformation of DREB1A Gene into Rice
    渗透胁迫信号传导关键基因的克隆及DREB1A基因对水稻的遗传转化
短句来源
    Photoprotective Mechanisms and Regulation of PSⅡ Photochemistry in Rumex Leaves under NaCl Stress
    NaCl胁迫下杂交酸模叶片光破坏防御机制以及PSⅡ光化学效率的调节
短句来源
    Studies on Change of Osmolytes in Lespedeza Michx under Drought Stress and Transgenic Lespedeza Formosa with Sac B Gene
    胡枝子干旱胁迫下渗透物质变化以及外源基因Sac B对美丽胡枝子的遗传转化研究
短句来源
    Functional Studies on Nuclear Restore of Fertility of CMS-S and Responsive Genes to Submergence Stress of Maize (Zea mays L.)
    玉米CMS-S核恢复基因及玉米对淹水胁迫响应基因的功能分析
短句来源
    Gene Expression Profiling of Wheat Seedling in the Process of Water Stress
    小麦幼苗水分胁迫应答基因表达谱
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  胁迫的
    Study on the Response of Different Genotypic Rice(Oryza satava L.) to Low Phosphate Stress and Its Molecular Mechanism
    不同基因型水稻对低磷胁迫的响应及其分子机制研究
短句来源
    Maize Quantitative Genetic Studies of Yield and Agronomic Traits and Gene Differential Expression Induced by Aluminum Stress
    玉米产量和农艺性状的数量遗传研究及玉米铝离子胁迫的基因差异表达研究
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    Water, Heat Transfer and Crop Growth Simulation in SPAC with Water and Nutrient Stress
    考虑水分和养分胁迫的SPAC水热动态与作物生长模拟研究
短句来源
    Study on Adaptive Mechanisms of Alfalfa(Medicago Sativa) in Drought Stress at Seedling Stage
    苗期紫花苜蓿(Medicago sativa)对干旱胁迫的适应机制研究
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    Response of Aloe vera L. to Salt Stress and the Alleviative Effect of Exogenous Silicon on Salt Injury
    库拉索芦荟(Aloe vera L.)对盐胁迫的响应和硅对其盐害的缓解效应
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  逆境
    PHYSIOLOGICAL STUDIES ON SALT-TOLERANCE IN RICE I. VARIETAL DIFFERENCES IN PLANT WATER RELATION AND OSMOREGULATION UNDER SALT STRESS
    水稻耐盐性的生理研究——Ⅰ.盐逆境下水稻品种间水分关系和渗透调节的差异
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    THE DYNAMIC CHANGES OF GLUTATHIONE LEVEL IN C_3 PLANT LEAVES UNDER PHOTOSYNTHETIC STRESS
    逆境光合条件下C_3植物叶片谷胱甘肽含量的动态变化
短句来源
    Membrane Lipid Peroxidation of the Leaves and Protective Enzyme Activity of Sugarcane Under Salt Stress
    盐逆境下甘蔗叶片膜脂过氧化与保护酶的活性
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    Relationship Between Drought Stress Proteins and Drought Resistance in Wheat Seedlings
    小麦幼苗干旱逆境蛋白与抗旱性关系的研究
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    Effects of Waterlogging Stress on Nitrogen Metabolism and Yield in Winter Wheat at Booting Stage
    孕穗期渍水逆境对冬小麦氮素代谢和产量的影响
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  “stress”译为未确定词的双语例句
    Studies on Bases of Morphology and Anatomy with Physiological and Biochemical Characteristics of Resistance to Drought Stress in Brazilian Upland Rice-IAPAR9
    巴西陆稻IAPAR9抗旱的形态解剖学基础与生理生化特性研究
短句来源
    The Studies on Stress Physiology of Transformed Wheats with Spinach BADH and Expression of BADH in Different Drought Resistant Wheat Cultivars
    转菠菜BADH小麦抗性生理与不同抗旱性小麦品种中BADH的表达研究
短句来源
    Isolation and Function Identification of a Putative Tonoplast Na~+/H~+ Antiporter Gene in Cotton and Its Important Role in Salt Stress
    棉花液泡型Na~+/H~+逆向运转体基因的克隆、功能鉴定及其在耐盐性中的重要作用
短句来源
    Improvement in Techniques of Maize Transformation Mediated by Agrobacterium Tumefaciens and Analysis of Stress Tolerance of Maize Transformed with betA Gene
    农杆菌介导的玉米转化技术的改进及转betA基因玉米抗逆性分析
短句来源
    Isolation and Characterization of Transcription Factor DREB/ERF Genes Related to Stress Tolerance in Triticum Aestivum L.
    小麦抗逆相关DREB/ERF转录因子基因的克隆与鉴定
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  stress
In Vitro and In Vivo Characterization of Alpha-1A Selective Agonists and Their Utility for Stress Incontience
      
A new way to estimate the parameters in the progressive stress accelerated life testing
      
In this article a deficiency in the classical approach is pointed out and a new method for the statistical analysis of life data, especially for electronic products, under progressive stress (voltage)V(t) =Kt is given.
      
Using the Bayesian method, for certain choices of the prior distribution, several forms of estimators of the parameters in the normal stress Weibull distribution and the inverse power law model are derived.
      
In particular, when the new shape parameter of the distribution under progressive stress is given (or estimated in advance), the closed forms of these estimators are relatively simple and are numerically accessible on computers.
      
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An investigation,on the bud and the root with regard to the stubble cane and its pro-duction,had been carried out,during the years 1961 and 1962 in Fukien province,and thepreliminary results were summarized briefly as follows:1.By employing the radio-active element p32 as a tracer,it was shown that the old rootsystem of the stubble was capable of absorption early in the growing season.In so doing,the stubble cane was able to make an earlier start in growth than that of the newly plantedcane.(See tables 1 to...

An investigation,on the bud and the root with regard to the stubble cane and its pro-duction,had been carried out,during the years 1961 and 1962 in Fukien province,and thepreliminary results were summarized briefly as follows:1.By employing the radio-active element p32 as a tracer,it was shown that the old rootsystem of the stubble was capable of absorption early in the growing season.In so doing,the stubble cane was able to make an earlier start in growth than that of the newly plantedcane.(See tables 1 to 3).2.We found that permanent roots appeared on the ratoon,soon after its emergence fromthe stubble cane,while,in contrast,the newly planted cane produced only permanent rootsafter it possessed two true leaves.The ability of the ratoon to produce permanent roots de-pended on the number of bud scales.Usually,the more the number of scales,the earlier andbetter production of permanent roots.(See tables 4 to 5).3.The number of bud scales on buds appearing at different nodes on the same cane wasfound to be different,being more at the basal portion,and decreasing in number toward thedistal end.Likewise,the number of scales on an opened bud was found to be higher thanthose of the unopened ones on the same node in different cane.(See tables 9 to 12).4.New canes arising from buds occurring on the basal portion up to a height fivecentimeters of the residual stock were larger,more vigorous and constituted the effectivecanes in crop production.It was further shown,that the crowded nodes,often enveloped inthe scales of the residual stock,were able to differentiate normal and healthy buds.Themanner and time of the formation of these buds remained as problems to be studied later.(See taables 6 to 8).5.We would like to stress the fact that the performance of the buds and the roots forthe stubble canes referred to above as important factors in sugar cane production,wasintimately linked up with the external factors including cultural operations.The productionof earlier,more and stouter canes was often influenced by a number of cultural treatmentsthey received during the previous season.Among these cultural treatments,we listed thefollowings:(1) harvesting of canes properly conducted;(2) good care and protection ofstubbles through the winter;(3) proper cultivation and preparation of cane beds during earlyspring;(4) adequate fertilization,cultivation and irrigation of the preceding crops;and (5)chemical and biological control measures of pests and diseases well executed.(See tables 13to 28).

通过解剖和应用 P~(32)示踪,明确了各节位蔗芽的构造,老根系的作用,以及根系提早发生的原因。研究了宿根甘蔗的丰产技术,认为破畦松兜的增产效果最为明显。

Based on thirty years experiences in the development and exten-sion of rust-resistant wheat cultivars,several important problemsconcerning this work were discussed.1.Analysis of parentage of the released wheat cultivars showedthat the dosage of good parents with high yielding capacity and adap-tability in crosses,especially in multiple crosses,shouldn't be lessthan 1/2.In choosing or using rust-resistant parents,varietal proper-ties pertaining to the tolerance to adverse environmental conditions would also be...

Based on thirty years experiences in the development and exten-sion of rust-resistant wheat cultivars,several important problemsconcerning this work were discussed.1.Analysis of parentage of the released wheat cultivars showedthat the dosage of good parents with high yielding capacity and adap-tability in crosses,especially in multiple crosses,shouldn't be lessthan 1/2.In choosing or using rust-resistant parents,varietal proper-ties pertaining to the tolerance to adverse environmental conditions would also be of importance.2.The prerequisite for success in breeding wheat for rust-resis-tance is the choice of parents and making the best possible combina-tions.The size of the segregating population should be as large aspossible within the limit of facilities.It was considered feasible todiscard crosses on the basis of F_2 yield trials as well as to discardlines on the basis of 2 successive early generation progeny tests.Thekernel weight form single spike could be considered as a criterion forhigh yielding ability,with an adequate number of spikes per unitarea as a prerequisite,in the development of high-yielding cultivarsunder conditions of high fertility and good irrigation.The importanceof field inoculaton and green house seedling tests with several pre-vailing physiological races of the rust pathogens in segregating genera-tions was also stressed.3.The experiences from the extension of three cultivars pointed out that whether a new cultivar could meet the requirement of the cul-tural practices when it would be released was an important factor of its acceptance by the farmers.Consequently,special care should bepaid to the level of fertility and management of the experiment plots.Another point was that the new cultivars should be released in bat-ches so that the farmers could make their own choice among them.4.The evaluation of recent introductions of breeding materials,thecreation of our own breeding stocks,the utilization of intermediateproducts,genetic studies of rust resistance and the use of horizontalresistance were also discussed.

本文是根据品种育成推广的经历及现状,提出了抗锈育种工作中几个应注意的问题。进一步强调了在亲本选配问题中高产亲本的作用,并论述了抗锈亲本的选择与利用经验。文中提出杂种群体大小应在人力可以掌握的范围内适当扩大,并扼要论述了杂种组合产比与早代产比的部分结果,强调了多小种接种的重要性。通过三个品种的推广讨论了试验地生产水平问题。文中还对人工创造原始材料、品系间杂交、抗锈遗传研究及水平抗性利用等问题提出了一些看法。

The International Rice Research Institute (IRRI) developed a new rice cropping pattern of continuous year-round farming after five years' investigation on the various rice cropping systems of South-eastern Asian countries.Rice fields are divided into several plots of about equal size according to the growing duration of the varieties used. A definite amount of seed beds and strict daily work schedules of a week are needed in this method so that rice is seeded, transplanted and harvested once a week.This is a...

The International Rice Research Institute (IRRI) developed a new rice cropping pattern of continuous year-round farming after five years' investigation on the various rice cropping systems of South-eastern Asian countries.Rice fields are divided into several plots of about equal size according to the growing duration of the varieties used. A definite amount of seed beds and strict daily work schedules of a week are needed in this method so that rice is seeded, transplanted and harvested once a week.This is a highly intensive rice cropping system,in which rice can be multiply cropped as high as four times a year without causing heavy stress on labors, machines and other resources. At the same time stable increases in yield and income can be expected.The year-round rice farming opens a new prospect and offers suggestions for the reformation of the rice cropping system in the southern regions of our country especially those with similar conditions.

国际水稻研究所(IRRI)在研究总结东南亚热带地区水稻周年生产的各种方式后,经过5年试验,提出一种水稻连续生产的种植模式。 水稻田划分为若干相等的小区,配以一定面积的秧田,并拟订每周每日的工作计划,使稻田每周播种一次,移栽一次,收获一次。 水稻周年种植法是一种高度集约的稻田种植制度,每年可复种水稻四次,且又可均匀使用劳畜力、机具及其他资源,并成倍地提高产量和收益。 水稻周年种植法提出了一种改革稻田种植制度的前景,对我国南方稻区,尤其是具有类似条件地区的水稻种植方式具有一定的启发性。

 
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