旱

The leakage of K+, the peroxidation of lipids and the disruption of membranes induced by NaCl were different between halophytes and xerophyte.

NaCl诱导盐生植物和旱生植物种子K~+外渗、膜完整性破坏和膜脂过氧化反应表现不同。

An improved guanidine thiocyanate method has been developed for total RNA extraction from the leaves and roots of the succulent xerophyte Zygophyllum xanthoxylum which contains high levels of polyphenolics and polysaccharides. In order to remove polyphenolics interference, 4%β-mercaptoethanol was added in the extraction buffer.

针对多浆旱生植物霸王富含多酚和多糖类物质的特点，在常规异硫氰酸胍方法的基础上进行改进，摸索出一种霸王叶和根总RNA提取的方法。

Extreme xerophyte ; Reaumuria soongorica ; Salsola passerina ; diurnal variances of the photosynthetic rate ; physio-ecological characteristic

超旱生植物；红砂；珍珠；光合日变化；生理生态特征

This paper made a systematic research on Lonicerafulvotomentosa Hsu et S.C. Cheng, which grows well inkarst areas, from its biological characteristics, such asmorphology, growth and physiology. The main conclusions asfollows:(1)From the viewpoint of morphological anatomy, it hastypical xerophyte structures such as well-developed epidermisand tissues that transport water effectively, small leaf area,dense floss under the leaf surface, high stoma density, thesmall opening degree, thick cuticle, well-developed xylem andpalisade tissues, etc. The pollen of L. fulvotomentosa isseems to be spherical, and has 3 grooves, much bulge on theepidermis evenly. The shape of pollen is an important featureon taxonomy. The ripe fruit has from 1 to 18 seeds, some fruitbranch has 135 berry, its diameter is up to 0.8 centimeter.(2)From the viewpoint of growth, L.

本文从形态解剖、生长发育的节律、光合生理特性以及种子萌发生理等生物学特性方面对喀斯特适生经济植物黄褐毛忍冬进行了较为系统的研究，得出以下结论：(1)在形态解剖上，黄褐毛忍冬根茎中含有发育良好的周皮和输导组织，导管密度大，横截面宽，周皮的形成具有节制蒸腾、通气作用和保护组织免受外界环境影响的作用，宽的导管对水分的输导效率高；叶片密被绒毛，面积较小，气孔密度大、开度小，厚的角质层和发育良好的木质部和栅栏组织等是典型的旱生结构；黄褐毛忍冬花粉近球形，具3 孔沟，表面具均匀分布的小刺，刺间具网状纹理。

Xerophytic vegetation; xeromorphic vegetation; xerophious plant; xerad; xerophyte

名词 n.1。在干旱基质上生长的由旱生植物构成的植被。

The effect of NaCl on seed germination was due to both osmotic stress and ion toxicity for both halophytes, e.g., Suaeda physophora and Haloxylon ammodendron, and xerophyte, e.g., Haloxylon persicum.

NaCl对盐生植物(梭梭Haloxylon ammodendron；囊果碱蓬Suaeda physophora)和旱生植物(白梭梭Haloxylon persicum)种子萌发既有离子伤害又有渗透胁迫。

The xylem cell quantity increasing was adaptive to the humid and hot habitats.

针叶内木质部细胞数量的增加是对旱生环境的一种适应。

In eastern Washington, the Yakima Valley became known for its apple orchards, while the growth of wheat using dry-farming techniques became particularly productive.

东部的华盛顿，亚基马谷成为著名的苹果园，而小麦的生长使用旱作技术变得特别富有成效。

In Huang-Huai-Hai region, the focus was to strengthen the cultivation and management to reduce yield gap between test and field production, because there were a high scientific and technological level but shortage of water, etc. In middle and lower reaches of the Yangtze River region, the focus was to strengthen the ability of drainage and avoided water-logging etc. In north-eastern region, the focus was to avoid drought and high-temperature damage, sometimes spike-sprouting caused by rain pre-harvest.

黄淮海优势区灌溉水短缺，干旱、干热风等自然灾害频发，但小麦科技实力较强，育种和栽培研究水平相对较高，要加强栽培管理缩小试验地产量与大田产量的差距；长江中下游小麦优势区排涝和降渍能力比较弱，渍害、穗发芽时有发生；东北小麦优势区干旱和高温频发、收获前常遇阴雨导致穗发芽；西北小麦优势区土壤瘠薄、干旱少雨；西南小麦优势区日照不足、雨多雾大晴天少，易旱易涝等。

Using the artificial water control technique in the shed of freerain and periodically changing water supply at different growth stages during annual growth period, we examined the SOD activity in leaves of %Acer truncatum% youngling to water stress .

通过旱棚人工控水，以元宝枫的生长阶段作为因素，采用三元二次通用旋转组合设计，对元宝枫不同生长阶段下供水量与供水方式对叶片中超氧化物歧化酶活性的影响进行了研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。