叶绿素

Correlation between NUE and characters of inbred lines were analyzed. The resulted showed that in choosing inbred lines, the following traits should be included, higher chlorophyll content and big area of ear leaf at heading period, higher N content of grain and harvest index at low N, and the big biomass at heading period and maturity at high N.

通过玉米自交系各性状与氮效率的关系的分析表明，低氮胁迫下，应选择抽丝期穗位叶叶绿素含量高、穗位叶叶面积大、籽粒含氮量高和氮收获指数大的自交系，高氮处理条件下，应选择抽丝期生物量大和成熟期生物量大的自交系。

According to correlation analysis of yield and properties, the following traits should be included, higher chlorophyll content and big area of ear leaf at heading period, higher N content of grain, NUE and N harvest index in choosing cultivars at low N, and the big biomass at heading period and maturity should be included at high N.

据性状与产量相关分析表明，低氮条件下应选择抽丝期穗位叶叶绿素含量高、抽丝期穗位叶叶面积大、籽粒氮含量高、氮效率高和氮收获指数高的品种；高氮条件下应选择抽丝期生物量大和成熟期生物量大的品种。

The main causes resulted in the yield and quality difference among treatments were that it was beneficial to decomposing and releasing nutrients in compost when mixed EM and it was raised significantly for the rapid availability of Nitrogen, Phosphorus and Potassium in soil applied EM biological-organic fertilizer, which increased the Nitrogen, Phosphorus and Potassium nutrient content in stem, leaf blade and ear and improved the organism function, and then the chlorophyll content and rate of photosynthesis of crop functional leaf blade were raised, the strengthened photosynthesis increased the plant dry matter content, thereby laid a foundation for seed-filling.

分析产量提高和品质改善的原因，得到以下结论：EM的加入促进了有机肥养分的分解和释放，EM生物有机肥土壤的有效氮、磷、钾含量显著提高，充足的肥料供给使植株的N、P、K含量增加，机体的功能得到改善，作物功能叶片的叶绿素含量和光合速率提高。光合作用的增强促使植株干物质积累量增加，从而为灌浆和籽粒饱满打下坚实的基础。

Results of field experiment showed that combined application of organic manure and fertilizers increased root vigor,reduced the decline of chlorophyll and protein content and the senescence of flag leaf,increased ear/tillering ratio, percentage of full grains,weight of thousand grains and rice grain yield.

大田定位试验结果表明，有机无机肥配施可提高水稻根系活力，减缓旗叶叶绿素和蛋白质的降解，延缓水稻旗叶衰老，提高水稻分蘖成穗率、结实率、千粒重和水稻产量。

Measurement of fluorescence of PS Ⅱ Reaction Center indicated F/F and F/F decreased in both alfalfas under drought stress.

3对叶绿素荧光参数的研究表明：干旱胁迫下两种紫花苜蓿PSⅡ反应中心光化学效率F(下标 v/F、PSⅡ潜在活性F

The leaf area index, photosynthetic potential and dry matter accumulation were lower for the SHY rice than those for the CK at the early growth stage, and their differences were not significant between the two rice types at heading, and were greater for the former than the later after heading. The root-shoot ratio at each growth stage, root bleedings from heading to maturity, grain-leaf ratio, translocation percentage of the matter from stems and sheaths and harvest index of SHY rice were greater than those of CK.

超高产水稻各生育时期的根冠比、抽穗至成熟的根系伤流量以及粒叶比、茎鞘物质运转率和收获指数均显著高于CK；超高产水稻花后叶面积指数、剑叶叶绿素含量、光合速率、PSⅡ最大光化学效率均显著高于对照，非光化学猝灭系数显著低于对照。

Protoporphyrinogen oxidase inhibiting herbicide is becoming a hot point of novel herbicide development because it inhibits the enzyme catalysing the synthesis of chlorophyl in plant cell, insures the different activity between plants and animals, and has the virtues of high effectivity, low toxicity and mezzo residue.

而原卟啉原氧化酶抑制剂类除草剂以植物细胞中催化叶绿素合成的酶为作用点，确保了动植物之间的选择毒性，具有高效、低毒、残效适中的特点，成为新型除草剂开发的热点。

The results showed that drought stress resulted in reduction of relative water content, protein content, chlorophyll content, corticoid content, net photosynthetic rate, transpiration rate, Fm, Fv/Fm, Fv/Fo and accumulation of proline content, SOD activity, POD activity, MDA content, water use efficiency.

通过测定不同处理条件下小麦代换系及其亲本叶片的生理、生化指标，结果表明干旱胁迫导致相对含水量、蛋白质含量、叶绿素及类胡萝卜素含量、光合速率、蒸腾速率降低，最大荧光、PSⅡ原初光能转换效率以及PSⅡ潜在活性降低，却导致细胞膜透性增大、SOD和POD活性增强、脯氨酸和丙二醛含量增加、水分利用效率增加。

The larger cyprinids Sinibrama macrops, Cyprinus carpio carpio, Carassius cuvieri have the higher correlation with chlorophyll-a in spring, summer and autumn separately. This phenomenon possibly comes from the feeding habits.

黑鲢、鲤鱼、高身鲫等中大型鲤科鱼类，分别在春季与夏秋季时与叶绿素a的相关性较高，判断应与食性有关。

Based on the system,in vivo fluorescence of 10 different dilutions from the same water sample and 24 kinds of water samples from different sources was determined and the linear relationship of fluorescence intensity and chlorophylla concentration was also investigated.

利用该系统测量24种不同来源水样和同一水样10种不同比例稀释样品的浮游植物活体荧光强度，研究了荧光强度与叶绿素a浓度的线性关系。

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。