叶绿素

Nineteen alloplasmic common wheats whose origins of cytoplasm are Aegilops and nuclear donor F94-111 were taken as study materials, the flag leaf area, net photosynthetic rate of flag leaf were measured and relative Chl. content of flag leaf, and genetic effects of Aegilops cytoplasm were studied. Ae. Squarrosa, Ae.

以19种不同山羊草细胞质异质系与其核供体普通小麦F94-111为材料，测定其旗叶叶面积、净光合速率和叶绿素相对含量，研究不同山羊草细胞质对普通小麦光合性状的遗传效应。

Eight Alnus cremastogyne clones, which simulated with different concentration of sodium chloride, were measured with four physiological indexes, including SOD activity, MDA content, chlorophyll content and soluble proteins content.

以不同质量分数的盐胁迫对桤木Alnus cremastogyne 8个无性系，在盆栽条件下测定叶片中丙二醛质量摩尔浓度、超氧化物歧化酶活性、可溶性蛋白质量分数和叶绿素质量分数的变化。

Twenty three troublesome weeds and five crops were tested to study specificity of helminthosporin. The result showed that 18 out of the 28 species were susceptible to the toxin. Chenopodium serotinum is the most susceptive, and D. sanguinalis, Polygonum aviculare, Beckmannia syzigachna, Chenopodium album and Alopecurus japonicus took second place.

该毒素在150μg/mL浓度下，对马唐胚根生长抑制率达44.59%；当毒素浓度达到200μg/mL时，叶绿素含量下降18.41%；在500μg/mL浓度下，毒素对供试的23种杂草产生的毒害程度不同，其中小藜对毒素最为敏感，其次为马唐、萹蓄、菵草、藜和日本看麦娘等恶性杂草。

A pot experiment was carried out to study effects of Cu stress on growth of Alternanthera philoxeroides, content of chlorophyll, biomass of the plant, and activity of four species of soil enzymes (Invertase, Catalase, Urease and Phosphatase).

通过盆栽实验，研究了不同浓度铜胁迫对外来杂草水花生植株生长、叶绿素含量、生物量及土壤酶活性的影响。

Pot experiments were carried out to study the effect of petroleum hydrocarbon pollutants in soil on physiological and chlorophyll fluorescence response of Forsythia suspense, Hydrangea paniculata and Amorpha fruticosa.

通过盆栽试验，研究了不同浓度的石油烃胁迫对连翘、大花水桠木、紫穗槐生理及叶绿素荧光特性的影响。

In the concentration of petroleum hydrocarbon 3g/kg and 6g/kg, Forsythia suspense had the less variation breadth of physiological characteristics and chlorophyll fluorescence parameters compared with Hydrangea paniculata and Amorpha fruticosa, and had higher tolerance to petroleum hydrocarbon stress.

石油烃含量在3g/kg土和6g/kg土2个处理中，连翘的生理指标和叶绿素荧光参数的变化幅度要小于大花水桠木和紫穗槐，对石油烃胁迫的抗性更强；石油烃含量在12g/kg土时，3种植物的生长均受到最大抑制。

Results showed that benthic mollusks had some purification effect on CODcr,NH3-N,TP and chl-a of eutrophic river water ,and the effect of Anodonta woodiana was better than that of Bellamya aeruginosa.

文章研究了底栖软体动物富营养化河水中COD、NH3-N、TP、叶绿素a的净化效果。

Base on content of chlorophyll a and feeding type of fish and shellfish a food web methods was designed to control eutrophilication. The native freshwater bivalve,Anodonta woodiana, was selected as a filter to remove the algae in the water. The result is quite satisfied and promising.

本研究以水中叶绿素a浓度为基础，鱼类食性为辅，发现使用本土种且具有经济价值之淡水圆蚌，来作为滤除水中藻类的生态方法颇具可行性，利用藻类吸收营养盐、圆蚌食用藻类、再将圆蚌移除之方式而达到降低水库营养盐能量的目的。

The results showed that calcium had increased the single fruit weight, L/D, Vc content, SSC content and anthocyanidin content, while had decreased the chlorophyll content and titratable acid.

结果表明，喷钙后单果重增加，果形指数增大，Vc含量提高，可溶性固形物和花青苷含量增大，果实的叶绿素和可滴定酸含量下降。

Results The UV-B treatment caused the declines of chlorophyll content, soluble protein content and water content of leaves, besides, dose-effect was existed. The decline of 30 μW/cm^2 treatment was bigger than that of 15 μW/cm^2 treatment. The influences of UV-B radiation on carotenoid content and anthocyanidin content were similar; the change trends were declined firstly then increased. The UV-B treatment with two doses restrained the electron transport of PSⅡ, particularly; the inhibitory effect was biggest after treated 2h, and then this effect was declined in 4, 6 and 8 h, so the dose-effect was existed. The UV-B radiation with two doses restricted photosynthetic rate and the inhibitory effect increased with the increase of treatment time. The high dose treatment caused huge damage to membrane system, while the result of low dose treatment was not obvious.

结果］UV-B处理导致叶绿素、可溶性蛋白含量以及含水量都降低，且存在剂量效应，30μW/平方公分处理的降幅大于15μW/平方公分；UV-B辐射处理对类胡萝卜素含量的影响与花青素相同，均表现为先下降后上升的趋势，2种剂量间差异不大；2种剂量的UV-B处理均抑制了PSⅡ的电子传递，尤其是处理2 h的抑制作用最大，4、6和8 h的抑制作用有所缓解，且存在剂量效应；2种剂量的UV-B辐射均抑制了叶片的光合速率，随着照射时间的延长抑制效应加大；高剂量UV-B处理对膜系统的损伤较大，低剂量UV-B处理结果不明显。

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。