胁迫的

The potted seedlings of Ailanthus altissima S.,Ginkgo biloba L.and Robiniapseudoacacia L.was treated by soil drought stress to study changes of chlorophyll afluorescence parameter under drought stress.

采用对盆栽臭椿、银杏和刺槐苗木进行土壤干旱胁迫处理的方法，研究干旱胁迫对植物叶片叶绿素荧光动力学的影响。

Effect of different soil drought stress on the growth and accumulation of soluble substances of Arachis duranensis was studied by potted culture with controlling soil water content.

采用盆栽控水的方法，研究了不同土壤干旱胁迫程度与胁迫时间对多年生落花生Arachis duranensis生长及溶质累积的影响。

Under no andheavy soil water stress, there"s a great change of Atriplex canescens"s physiologicalindexes, Tr and Cs increased while Pn, WUE and LS decreased, its growth andbiomass reduced substantially, which reveals it can hardly survive under extremelydry habitat.

在无土壤水分胁迫和重度土壤水分胁迫下各项生理指标变化显著，Tr、Cs增加和Pn、WUE、LS下降，生长量和生物量的大幅度下降，表明其在特别干旱的环境条件下难易生存。

Low molecular weight heat shock protein 22 in mitochondria decreased with dehydration stress, and lost until 20 d of dehydration stress.

线粒体小相对分子质量热休克蛋白 22的含量随着脱水胁迫下降，到脱水胁迫20 d丧失。

The result shows that with the increase of stress time, relative water content on leaf is in a downward trend while Sedum spurium \\\"Coccineum\\\"、Sedum reflexum have a slight increase in the mid; MDA content in these plants changes very slowly except that in Sedum spurium \\\"Coccineum\\\" which continues to increase; the relative electric conductivity in the first 20d in four kinds of plants is on the rise and the value of sedum lineare and Sedum spurium \\\"Coccineum\\\" decreases in the last 5d of stress; the changes of SOD activity in four sedums are similar, which increase first and then decrease and then rise again.

结果表明：随着胁迫时间的延长，植物叶片相对含水量呈下降趋势，红叶景天和反曲景天中期值稍有上升；丙二醛除红叶景天持续上升外，其它三种植物变化缓慢；相对电导率四种植物在前20d都呈现上升趋势，胁迫最后5d时佛甲草与红叶景天值下降；SOD酶活性四种植物变化趋势相似，呈现先上升后下降再上升趋势。

The biomass production of grafted seedlings, activities of antioxidant enzymes and contents of proline and soluble protein in leaves of grafted seedlings were significantly higher than those of own-root seedlings, while O2(superscript -) production rate, contents of H2O2 and MDA in leaves of grafted seedlings were significantly lower than those of own-root seedlings under Ca(NO3)2 stress.

结果表明，Ca(NO3)2胁迫明显抑制植株生长，显著提高植株抗氧化酶活性，显著增加植株O2生成速率以及H2O2、MDA、脯氨酸和可溶性蛋白含量，但胁迫后嫁接苗的生物量显著高于自根苗，抗氧化酶活性、脯氨酸和可溶性蛋白含量均显著高于自根苗，而O2生成速率、H2O2和MDA含量则显著低于自根苗。

At the late stage of stress (10 d), the chlorophyll degradation of own-root was accelerated, salt ion destroyed chlorophyll photosynthetic structure, the Pn, Tr and Gs of own-root plant were still significantly decreased, Ci was significantly increased, while Ls was significantly decreased, WUE was significantly decreased because the decreasing extent of Pn was more obvious than Tr, leading to a poor water use.

自根苗和嫁接苗叶片和根系中脯氨酸、可溶性糖、可溶性蛋白质含量在胁迫初期均会被诱导上升，随着胁迫时间的延长，有的持续上升，有的显著下降，但嫁接苗与自根苗相比，不论叶片还是根系中，各指标均显著高于自根苗，渗透调节能力相对较强。

The results indicated that MDA of both the radicles and cotyledons increased extremely significantly under the low and the high temperature treatments compared with the control, whereas the SOD activities decreased.

结果表明：温度胁迫使胚根中TSP含量均较常温显著或极显著降低，子叶中的TSP含量在低温处理下极显著高于对照，而在高温下与之相反；温度胁迫下，各豇豆品种胚根和子叶中MDA含量均较显著或极显著高于对照；SOD活性变化与之相反，但品种间有差异。

The results showed that the relative water content and water potential in Curvedleaf Indian Lovegrass were declined sharply, cell membrane was harmed badly, which was sensitive to water stress.

结果表明：弯叶画眉草叶片相对含水量和水势随干旱胁迫程度的加剧，下降幅度最大，膜伤害度最重，对水分胁迫最敏感。

Cut rose'Samantha',a cultivar with strong tolerance to water deficit stress, and 'Belami',a cultivar with middle range tolerance were used to investigate the changes of contents of soluble protein and free amino acid,and endopeptidase activity in petals during flower opening and senescence.

以切花月季耐失水胁迫品种'萨蔓莎'和中度耐失水胁迫品种'贝拉米'为试材，研究了采后开花衰老进程中可溶性蛋白质和游离氨基酸含量及内肽酶活性和种类的变化。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。