干旱

Crust or layer of hard ''.'subsoil'.

干旱或半干旱地区的''。

The effects of drought stress on growth and development of buckwheat seedling were treated with the osmotic stress solution PEG were studied using four tartary buckwheat cultivars.

以 4 个荞麦品种为材料，采用 PEG 模拟干旱胁迫方法，研究了干旱胁迫对荞麦幼苗生长发育的影响。

The phenophase, growth speed, structure of tussock, bloom habits, yield of new russian wildrye strain were studied, The results showed that the new strain has good traits of strong cold and drought-resistance, turning-green early, fast development and long vegetative growing period, more tillers, developed rootsystem, high yield and bloom trimly. It is suitable to being planted in arid and semi-arid region.

对新麦草新品系及对照山丹新麦草的物候期、生长速度、草层结构、开花习性、产量性状等生物学特性和生产性能的研究结果表明，该品系具有抗寒、耐旱性强、返青早、生长发育快、青绿持续期长、分蘖多、须根系发达、开花整齐和产量高等优良特点，适宜于干旱半干旱地区栽培，具有很好的推广种植前景。

Severe dry weather conditions, or drought, have left fields unfertile.

严重干旱的天气条件，或干旱，离开场一侧。

In simple terms, he says,"the wet places will get wetter and the dry drier".

简单地说，他表示，"多雨地区将变得更加潮湿，干旱地区则更加干旱"。

There are similar changes of ABA concentrations both in xylem and root.

在土壤干旱的初始阶段叶片中ABA浓度急剧增加，到干旱第3天时即达到最大值(＝1.63nmol·g-1FW)。

Soil water, a sort of significant water resources, is a key in transformation among surface water, groundwater, atmospherically water and soil water.

水分是干旱、半干旱地区植被建设最重要的生态制约因子，对植被恢复具有极大的限制性。

The results indicated that the seed vigor of Brudzynska, Bezenchukii Bromus inermis is lower under the level of 5%, but it is high under the level of 10%-20%.

在5%PEG的干旱胁迫下，Brudzynska、Bezenchukii无芒雀麦的种子活力较低，但在10%~20%PEG的干旱胁迫下，两者的种子活力较高，而内蒙古正镶蓝旗野生沙地雀麦和内蒙古克什克腾旗野生沙地雀麦种子活力较低。

The results showed that seedlings of Broussonetia papyrifera L. were well adapted to low drought stress. Medium and heavy drought for a long period did some harm to them, but after rewatering they could recover obviously.

结果表明：构树幼苗能够适应低度的干旱胁迫，长期的中度和重度干旱胁迫会对构树造成一定的伤害，但复水之后伤害会明显恢复。

SOD and POD were important antioxidant enzymes for resisting drought in seedlings of Broussonetia papyrijera L., which can effectively avoid the iniury of oxidative stress for the trees through inducing the plasma-membre protection system. But the function of CAT to resist drought was not obvious.

SOD和POD是构树幼苗抗干旱的重要抗氧化酶，它能够通过自身诱导抗氧化酶系统以提高适应能力而忍受逆境，但构树幼苗的CAT酶在抗干旱胁迫上的作用不明显。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。