叶绿素的

3Photosynthetic efficiency was sensitive to the increase of plant density, which mainly caused by the decrease of content of chlorophyll, photosynthetic rate, and carboxylation efficiency which were positive correlation to yield per plant, and the decline of quanta efficiency was subordinate

3叶片光合效率对密度增加的反应较敏感，叶绿素含量、光合速率和羧化效率的降低是主要原因，它们与单株产量呈显著的正相关，叶绿素、光合速率和羧化效率之间也呈显著的正相关，量子效率的降低是次要的

The results of absorption spectra of chloroplasts showed that NO alleviated the effects of Cd on absorption spectra of chloroplast by raising the relative absorbance at 436 nm,480 nm and 470 nm,which caused lower contents of carotinoid and chlorophyll.

结果发现，Cd对叶绿素a、叶绿素b和类胡萝卜素含量都有不同程度的降低，NO处理缓解了Cd的影响，使叶绿体室温吸收光谱的吸收率提高；Cd导致686 nm处峰偏移4 nm，峰值降低33%，734 nm处峰值降低23%，外源NO缓解了Cd对光合系统的影响，使得叶绿体低温荧光光谱在686和734 nm的峰值分别仅下降17%和10%；以DCPIP为人工电子受体， Cd处理的叶绿体中DCPIP还原速率较慢，光合电子传递(H2O→DCPIP)速率降低1.5倍，外源NO处理显著缓解了Cd对电子传递链的抑制，使其光合电子传递速率恢复到对照的水平。

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。

By using spectrophotometry method determinated the anthocyanindin and chlorophyll content in different parts of Prunus wilsonii leaves,results showed that,as time changes,anthocyanins content in different parts of the leaves showed a low-high-low change in trend,the analysis of variance,the difference is not significant,relations between anthocyanidin content in Prunus wilsonii leaves and the position of health was not obvious,anthocyanindin content in the same part are far greater than chlorophyll content,...

用分光光度法对紫叶稠李叶片不同部位的花青素和叶绿素进行了测定，结果表明，随着时间的变化，不同部位叶片的花青素均呈现低-高-低的变化趋势，经方差分析，差异性不显著，说明紫叶稠李叶片花青素含量跟着生的部位关系不明显；同一部位的花青素含量远远大于叶绿素含量，这也是紫叶稠李叶片在整个生长季呈现紫红色的原因。

Photosynthetic traits of Ningai 1 and its 4B-monosomic, nullisomic line were investigated in this paper(Rht3 gene was located in 4B-chromosome). 4B-chromosome has the positive effects on photosynthetic rate, chlorophyll content, RuBP carboxy lase content and activity, leaf conductance, chlorophyll relatve steady phase and photosynthetic avtive duartion and these effects are accumlative. So 4B-chromosome has the promoting influence on photosynthesis.

本文系统地研究了带有Rht3基因的4B染色体二体(宁矮1号)、单体(宁矮1号M4B)、缺体(宁矮1号N4B)材料的光合特性，发现带有Rht3基因的4B染色体对光合速率、叶绿素含量、RuBP羧化酶含量及活性、叶片导度均有正效应，并有累加作用，而且对叶绿素含量缓降期和光合速率高值持续期也有正效应，因此带有Rht3基因的4B染色体具有促进光合作用的效应。

In the simulated experiments, the effects of long-term exposure of dibutyl phthalate on contents of malondialdehyde, solubility carbohydrate, blade pigment, protein, glutathione and amino acid of Vallisneria spiralis L were studied. The cultivation period was 25 days. The effects on the growth of Vallisneria spiralis L under the stress of DBP was also invertigated in this paper. Vallisneria spiralis L was damaged seriously in long-term exposure of high concentration DBP.

以沉水植物苦草为试验材料，通过模拟实验研究了邻苯二甲酸二丁酯长期暴露对苦草的生长状况以及丙二醛、可溶性糖、叶绿素、谷胱甘肽、蛋白质和氨基酸的含量等生理生化指标的影响，试验结果表明：高浓度DBP长期暴露对苦草生长有严重伤害，DBP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。

Different season has different chlorophyll concentration in water body,character of water reflect-spectral and sensitivity band which are better related to chlorophyll concentration also have difference,resulting in the difference in retrieval models and parameters in models for each season.

不同的季节水体中叶绿素浓度不同，水体反射光谱曲线特征和与叶绿素浓度相关性较高的敏感波段也不一致，使得各季节选用的反演模型和模型中的参数也存在一定的差异。

And Changbai larch(Larix olgensis A.Henry)atdoubled CO2 concentration at seedling stage in growth-chamber and WI,HI of several dorminanttree species in MBKPF(1)Under 700μl·1-1 concentration of CO2,the stem height, stem diameter,main root length,root/shoot ratio and the relative proportions of biomass in root,stem and leaf of the seedlings ofKorean pine and Changbai larch had no significant change.

在700μL·L-1CO2条件下与正常浓度下相比较，在一个生长季后，红松、落叶松幼苗的苗高、地径、主根长、根茎比及生物量在根、茎、叶各器官中比例，差异不显著，对落叶松的侧枝数有影响；在第一、二次试验中，落叶松幼苗的平均每株生物量比在正常CO2浓度下大12.2％、14.2％，而红松幼苗的生物量分别减少3.9％、12.8％；红松、落叶松针叶叶绿素含量以及叶绿素a的相对含量在高浓度CO2下受到影响。

The RMSE between measured Chl a concentration and the Chl a concentration estimated by the three-band model based on MERIS bands is 6.47 mgm^(-3), demonstrating the robustness of this algorithm for MERIS Chl a retrieval.

根据MERIS的波段设置构建的三波段模型估算的叶绿素a浓度与实测叶绿素a浓度的RMSE为6.47mgm^(-3)，显示了良好的应用潜力。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。