叶绿素

The yellow colour seen in some autumn trees results from the loss of chlorophyll simply unmasking the yellow carotinoids that were there all along.

部分树木的叶子在秋天里变成黄色，这是因为叶绿素的分解让黄色的类胡萝卜素暴露出来。

The results showed that after exposure of germinating seeds to low temperature stress, the germination energy, germination percentage, germination index and seed vigor index in Zhengdan958 soaked with any of chemical regulation treatments under low temperature stress were higher than those of the unsoaked controls; In the meantime, the seedlings height, dry matter weight, leaf area, chlorophyll content of maize seedling under low temperature stress was elevated by A, B two kinds of concentration, indicating positive effect on strengthening maize seedling.

结果表明，低温逆境下各化控处理均提高了郑单958的种子发芽势、发芽率、发芽指数和种子简易活力指数；A、B两种药剂处理比对照都明显提高了低温胁迫下玉米幼苗的苗高、干物重、叶面积以及叶绿素含量，起到了良好的壮苗作用。

Based on the pot experiments ,effects of Dibutyl phthalatepollution on contents of solubility carbohydrate ,MDA, blade pigment, protein, glutathione and amino acid of Vallisneria s piralisL were s tudied during a long p eriod of 25 days .

在本实验浓度范围内，苦草对邻苯二甲酸二丁酯有一定的适应能力，DBP污染对苦草丙二醛和可溶性糖含量以及叶片中叶绿素含量的影响比较相似都有一定的起伏。

The results showed that in the growth period of R. glutinosa, soil ferulic acid, vanillic acid, and vanillin contents had a persistent increase, while β-hydroxybenzoic acid content increased first but decreased then. The addition of ferulic acid (8 μg·ml-1), vanillic acid (08 μg·ml-1), vanillin (12 μg·ml-1), and β-hydroxybenzoic acid (30 μg·ml-1) in water culture had stronger inhibitory effects on R. glutinosa root length, root mass, fresh plant mass, and plant height. Treating with test phenolic acids except β-hydroxybenzoic acid increased leaf chlorophyll content significantly, compared with the control. After treated with test phenolic acids, plant SOD and POD activities decreased after an initial increase, and plant malondialdehyde content increased. In the treatment of ferulic acid, root SOD and POD activities were the lowest, and roots were rotted and dead.

结果表明：阿魏酸、香草酸和香草醛含量在地黄生长期表现为持续增加，而对羟基苯甲酸含量先升高后降低；外加阿魏酸（8 μg·ml-1）、香草酸（0.8 μg·ml-1）、香草醛（1.2 μg·ml-1）和对羟基苯甲酸（3.0 μg·ml-1）对水培地黄根长、根质量、全株鲜质量和株高有较强的抑制作用；酚酸处理使地黄叶片叶绿素含量降低，除对羟基苯甲酸外差异性极显著；经过酚酸处理的地黄幼苗SOD和POD活性为先升高后下降，丙二醛含量升高，其中阿魏酸的处理使根中酶活性降至最低，根部腐烂死亡。

Meanwhile, the fluidity, Wet ability, dispersive ability, suspension capability, Whipability, physical and chemical ability, granule, water content and alkalinity acidity act were up to the wettish powder quality standard of Chinese and FAO.

波尔多液营养保护剂含有一定量的水溶性铁、锌，与CK相比，喷施BNPP-NFe、BNPP-Zn、BNPP-Fe-Zn后，番茄叶片叶绿素、活性铁以及根、茎、叶中全铁、全锌含量都有显著提高，能够矫治番茄缺铁、锌症状。

Mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment; yellow-green and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some some classification systems superseded or subsumed by Heterokontophyta.

大部分淡水真核状态的海藻，具以褐色或黄色色素掩饰的叶绿素；黄绿和金褐色的海藻和硅藻属；黄藻纲、金藻纲和硅藻纲。

In order to discuss the effects of bio-organic manure on ginger（ Zingiber officinale Rosc.）yield, the leaf photosynthesis and chlorophyll fluorescence in different fertilizer treatments were studied in the experiment using the cultivar 'Laiwu da jian'.

为探讨生物有机肥对生姜的增产效果，以'莱芜大姜'为试材，研究了不同肥料配比对生姜生长及叶片光合作用和叶绿素荧光特性的影响。

Three types of Zizyphus jnjuba Mill were used as the research materials to study the diurnal changes of chlorophyll fluorescence parameters.

以沾化冬枣、龙枣、黄河枣王三种不同的枣树为材料，研究其叶绿素荧光参数的日变化。

We used photosynthetic activity (measured as chlorophyll a fluorescence) and photosynthetic pigment concentrations to assess the effect of pulsed exposures of aged crude oil, dispersant and an oil+dispersant mixture on the seagrass Zostera capricorni Aschers in laboratory and field experiments, using custom-made chambers.

利用测叶绿素a荧光（ Diving-PAM ）和测光合色素含量的方法，检测了原油、分散剂以及二者的混合物在室内和室外实验中对海草 Zostera capricorni 的影响。

In one embodiment, the first and second dyes are from the group comprising porphyrin, chlorin, chlorophyll, phthalocyanine, or salen.

在一个实施方案中，第一种染料和第二种染料选自卟啉、二氢卟酚、叶绿素、酞菁染料或salen。

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。