Though plenty of rain may fall on savanna during the year, for at least part of the year little does, creating the drought stress ultimately favoring grasses.
尽管一年中大草原上可能会有大量降雨，但至少有一段时间是降雨很少的，造成干旱压力，最终有利于牧草生长。
Drought stress affect the form of Phyllitis japonica.
干旱胁迫对对开蕨形态产生影响。
The effects of drought stress on leaf senescence after heading and yield were investigated.
研究干旱逆境对水稻抽穗后叶片衰老和产量的影响。
Thus, drought stress appears to play an important role in the host selection behavior of ALB.
这表明干旱胁迫在光肩星天牛选择寄主植物方面起着重要作用。
However, drought stress strongly restricts maize production in most arid and semi-arid areas.
但是，在干旱与半干旱地区，水资源短缺一直制约着玉米产量的进一步提高。
Generally, the greater the intensity of drought stress was, the more distinctly index changed.
一般而言，干旱胁迫强度越大，对各指标的影响越显著。
The results showed that the photosynthesis and growth were obviously reduced by drought stress.
结果表明，在干旱胁迫下，烤烟幼苗植株的生长和光合作用均受到明显的抑制。
The water physiology of locust seedling under conditions of different drought stress was tested.
对不同土壤干旱条件下刺槐幼苗水分生理和生长指标进行了初步研究。
But soil drought stress increases CPT concentration in the leaves, stems and roots of the seedlings.
土壤干旱胁迫明显提高了喜树幼苗根、茎、叶中的喜树碱含量。
Drought stress not only affected the development and yield of maize, but also affected the grain quality.
干旱胁迫不仅影响玉米生长发育和产量，而且影响了玉米的子粒品质。
The changes rules of endogenous phytohormones in Citrange and Shanxiahong under drought stress were studied.
研究了干旱胁迫下枳橙和山下红密柑内源激素含量的变化。
Drought stress and the strong light stress haa significant effects on chloroplast membrane protein expression.
干旱胁迫和强光胁迫对叶绿体膜蛋白表达具有显著的影响。
Cold and drought stress could increase the soluble sugar content, which related with degree and time of stress.
低温和干旱胁迫均导致可溶性糖含量上升，并随胁迫程度的加深和胁迫时间的延长而增加。
Under simulated drought stress conditions, some physiological indices for Caucasian clover(Trifolium ambiguum Bieb.
在模拟干旱条件下测定了高加索三叶草、白三叶和红三叶幼苗期的抗旱生理指标。
Four stone fruits cell membrane injury rate were ascending tendency under drought stress, and resumed after irrigating.
干旱胁迫下四种果树细胞膜伤害率都呈上升趋势，复水后恢复。
The drought stress from jointing to heading stage decreased nitrogen nutrition efficiency of winter wheat significantly.
拔节至抽穗期干旱胁迫极显著地降低冬小麦的氮素营养效率。
Drought stress proteins are heat stable, therefore the heat stable HSPs (HSP s) are possibly related to drought resistance.
干旱逆境蛋白是热稳定蛋白，因此热稳定蛋白可能与抗旱性有关。
It was found that plant has adapting phenomena in drought stress, which means that plant has adapting ability to suit drought.
发现了植物对干旱胁迫的适应现象，即植物体有干旱胁迫的自动适应和调节能力。
Under drought stress, NO and H2O2 probably exerted their regulating effect on ABA synthesis by regulating cellular redox status.
干旱胁迫下NO和H2O2对ABA合成的调节作用可能是通过调节细胞氧化还原状态进行。
Under drought stress condition, rooting percent is smaller than that of intermediate water supply treatment and flooding treatment.
干旱胁迫条件下，插穗生根率不如中等供水处理和淹水处理。
Plants under drought stress environment, the structure of adaptive changes in plant drought stress mark antagonist characteristics.
植物干旱环境胁迫下的结构适应性变化是植物颉颃干旱逆境的标志性特征。
In the pot experiment, the efficiency was decreased by 19 51 and 28 90 percentage respectively by shading or drought stress treatments.
在盆栽试验中，遮荫或对茉莉施加干旱胁迫，茉莉王化控的增花效果分别下降19.51和28.90个百分点。
Elongation growth and basal growth are decreased gradually, and first elongation growth is restrained under drought stress in laboratory.
室内干旱胁迫条件下，臭柏的伸长生长和地径生长逐渐减少，而且伸长生长优先受到抑制。
The effect of drought stress on chemical components and main aroma matter content of nue-cured tobacco were studied with pot experiments.
在盆栽条件下研究了干旱胁迫对烤烟化学成分和香气物质含量的影响。
There were some correlations between the changes of the bands and the extent of drought stress, but their orderliness was not remarkable.
同工酶的谱带可归为四类，谱带的变化与干旱胁迫程度有一定相关，但规律不明显。
The changes of chlorophyll content in the leaves of both Brazilian upland rice and normal rice varieties after drought stress were not obvious.
干旱胁迫后不同水陆稻品种叶片中叶绿素含量变化均不明显；
In the different gradient under drought stress, leaves of 4 varieties of Hydrangea of the different physiological and biochemical changes occur.
在不同梯度土壤干旱胁迫下，八仙花4个品种叶片的各项生理生化指标发生不同变化。
There was close relationship between dry matter accumulation and the content of nutrients in the plant and the leaf tissue under drought stress.
干旱胁迫下烤烟干物质积累与烟株和叶片中的养分含量密切相关。
Water had greater effect on MDA content than fertilization and copper, and drought stress obviously increased the MDA content and MDA/SOD values.
水分对MDA含量的影响大于铜污染和施肥，表现为干旱可显著增大叶片MDA含量，并使MDA/SOD值增大；
The correlation between the leaves osmotic adjusting ability and the soybean drought-resistance in seedling phase under drought stress was studied.
研究了苗期大豆在干旱胁迫下叶片渗透调节能力与大豆抗旱性的关系。
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