叶绿素

Effect of water stress on the chlorophyll a fluorescence parameters of flag leaf of the wheat was studied by using OS 30 chlorophyll fluorometer.

作者中文名：张秋英；李发东；刘孟雨；董宝娣摘要：利用OS-30型叶绿素荧光分析仪研究水分胁迫对小麦旗叶叶绿素a荧光动力学参数的影响。

Six kinds of pigments were isolated and identified in benthic diatoms.They are carotene, chlorophyll a,fucoxanthin, chlorophyllin,P.neoxanthin and chlorophyll c.

鉴定出底栖硅藻的色素种类有 6种，它们分别是胡萝卜素、叶绿素 a、岩藻黄质、叶绿酸、新黄素、叶绿素 c。

The distribution characteristics of nutrient and chlorophyll a in the ice layer and water during the icebound season in the landscape water of a certain park of Changchun and the relationship between nutrient and chlorophyll a were studied.

以长春市某公园景观水体为研究对象，对其在冰封过程中营养盐在冰层和水体中的存在形态、叶绿素a等的时空分布特征，以及营养盐与叶绿素a之间的关系进行研究。

There are distinct correlativity between chlorophyll content , soluble protein content and Rubisco content of the rice under the different N level. The three contents of different position leaf of jowar and maize presented one peck in the middle leaves floor, which gave them great matters for photosynthesis.

各施氮处理下水稻Rubisco含量、叶绿素含量和可溶性蛋白含量三者之间都存在显著的相关性；研究了高粱和玉米两种C_4植物不同叶位叶片Rubisco含量、叶绿素含量、可溶性蛋白含量，结果表明在营养生长期两种C_4植物叶片的这三个生理活性从上到下都呈现中间高两边低的趋势。

The concentration of pigments and other chemical components including anthocyanins,chlorophyll a,chlorophyll b,carotenoids,solubility sugar and 10 kinds of macroelement and microelement were investigated using P.virginiana Schubert',and calculated the relativity of the data.

本研究以紫叶稠李(Prunus virginiana'Schubert')为试材，对其不同叶位叶片进行花青苷、叶绿素a、叶绿素b、类胡萝卜素、可溶性糖及10种常量和微量元素的测定，并进行相关性分析。

Is scientific research, production, trade in one of the high-tech enterprises, 50 million yuan in fixed assets, with 18 senior managers, professional and technical personnel 85 people, employees 600 people, has the domestic advanced production technology, strong technical force, professional the production of food, monosodium glutamate, seasoning products, chlorophyll series products, annual production capacity of 100 tons of chlorophyll production and the second phase project is under construction.

公司是集科研、生产、贸易于一体的高新技术企业，固定资产5000万元，拥有高级管理人员18名，专业技术人员85人，职工600人，具有国内先进的生产工艺，技术力量雄厚，专业生产食品、味精、调味系列产品、叶绿素系列产品，年产百吨叶绿素的生产项目二期工程正在建设中。

For example red autumnal leaves is bright red broadleaf plant, red the flowers observing a part of a historical period such as back laurel, contain cyanine element inside their mesophyll cell, consequently the front of blade or the reverse side present red; The lamina that wait is in Gong Sang, nandina synthesis of the chlorophyll below weak light is much, kind of carotene falls in strong

例如红叶朱蕉。红背桂等观叶花卉，在它们的叶肉细胞内都含有花青素，因而叶片的正面或背面呈现红色；红桑。南天竹等的叶片在弱光下叶绿素合成多，在强光下类胡萝卜素合成多，故放在半阴处培养叶色发绿，放在强光下养护，则叶色发橙；金边吊兰。金边虎皮兰叶片的不同部位上细胞内分别含有叶绿素和叶黄素，所以叶片呈现出黄绿相间的两种颜色。

The feeding and excretion of three little fishes (Hemiculter. leucisculus, Tilapia. aurea and Cirrhinus. molitorelld) was studied and their effect on water quality of Qiankeng reservoir in Shenzhen City Around the topdown effect of fish was also studied. Based on the analysis of their stomach contents, their diet composition was assayed. The three fishes" feeding rhythm in cage and their rate of digestion indoor were looked into, and their daily ration was estimated through the method of daily average fullness index. Using the spectrophotometer, the content of chlorophyll a in the stomach was measured, and the feasibility of taking the chlorophyll a as an index of measuring the feeding of fish on phytoplankton was studied. Adopting the national standard method, the effect of the three fishes" excretion on total nitrogen, total phosphorus, CODMn, pH, turbidity and conductivity coefficient was surveyed. The effect of feeding and excretion offish on water quality was discussed and the results revealed as follows:H.

围绕鱼类的下行效应，本文以深圳茜坑水库三种小型鱼类Hemiculter leucisculus罗非鱼Tilapia.aurea和鲮鱼Cirrhmus.molitorella为研究对象，以胃含物分析为基础，分析了三种鱼类的食物组成；调查了网箱中自然状态下三种鱼的摄食节律，在室内调查了三种鱼的食物消化速率，运用日平均饱满指数法计算出三种鱼的日粮；采用分光光度法测定了鱼体肠叶绿素含量，探讨了叶绿素作为鱼类对浮游植物摄食量衡量指标的可行性；采用国家标准的水质测量方法，测定了鱼类排泄对总氮、总磷、高锰酸盐指数、pH、浊度和电导率的影响量。

Grandis×E. urophylla. The results also showed that the chlorophyll content of leaves in eucalyptus seedlings increased with the concentration of nitrogen, but it showed a decreasing tendency in overhigh nitrogen concentration.

桉树叶片的叶绿素含量随着氮素处理浓度的升高而升高；但是过高的氮素处理，叶绿素含量则出现下降的趋势。

The effects of different plant densities on flag leaves chlorophyll content,SOD activity and MDA content after anthesis in stronggluten wheat interplanted in paddyfield were studied.

本试验在江苏淮北地区设计不同密度试验，研究其对稻田套播强筋小麦花后剑叶叶绿素含量、SOD酶活性和MDA含量的影响，结果表明：随花后生育进程推移，叶绿素含量呈下降趋势，且随密度增加，下降幅度增大；花后单茎干物质积累量和单茎籽粒产量亦随密度增加而下降，二者呈极显著负相关；随花后生育进程推移，剑叶SOD酶活性呈单峰曲线变化，可用二次曲线方程模拟，在花后1416 d达峰值，且随密度增加峰值出现时间提前，峰值数值呈先上升再下降的变化特征；随花后生育进程推移，剑叶MDA含量呈上升的变化特征，且随密度增大，数值变大；花后35 d剑叶SOD酶活性与花后单茎干物质积累量和单茎籽粒产量呈极显著正相关，而MDA含量与花后单茎干物质积累量和单茎籽粒产量则呈显著或极显著负相关。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。