叶绿素的

Using fresh chlorophyll distilled from fresh leaves of yulan as experimental material,this research analyses the change of the absorption spectra of chlorophyl under light of different wave length,different illuminating time,different temperature by means of using the WGS-9 chroma analysing instrument.

引言光谱分析在各个领域内有广泛的应用，对许多物质，光的吸收性是一个重要的本质特性，通过对物质的光谱分析可以得知它的元素组成成分[1]。在自然界中，叶绿素是广泛存在于植物的叶和茎中的绿色色素，它也有其特定的吸收光谱。

The results have shown that germinate rate of seed, weight of seedling, content of chlorophyl and Protein of seedling those were treated by SPEN for three generation exceed all. Two generations were treated by SPNE exceed one generation. Only was treated by SPEN at first generation still exceed CK of three generation.

试验结果证明，三代都用营养液处理的种子的发芽率，幼苗株重，叶绿素和蛋白质含量最高，超过两代使用营养液的，两代使用营养液的超过只用一代的，而仅在第一代用过营养液的，在第三代仍超过三代未处理的对照。

Compared with 810S,the total photosynthetic pigment content of Biao 810S was aabout 50%lower;which was the main cause of the yellow green leaf.2、The spikelet numbers,stigma exsertion rate and flowering time of Biao 810S were same as that of 810S.There were no significant difference of the agronomic traits between the the cross combination which came from the maintainers D100 and R96-1 and the combination from 810S.3、The photosynthetic rate of Biao810S was higher than 810S under strong light and lower under weak light.

叶绿素含量下降是标810S叶片呈淡黄绿叶色的根本原因。2、标810S的颖花数、柱头外露率和开花时间与对照基本相当，与恢复系D100和R96-1配制的杂交组合农艺性状与用810S配制的相应推广组合无明显差异，表明标810S可替代810S应用于两系杂交水稻，其淡黄绿叶色性状可应用于杂交制种田的不育系群体除杂，同时可根据幼苗期淡黄绿叶色性状植株的比例用于鉴定杂交组合中不育系的混杂率。3、弱光条件下标810S的光合速率低于810S，强光条件下标810S光合速率比对照高，且标810S在光强2400μmol·m~(-2)·s~(-1)以下没有光饱和点和"午休"现象。

Its main features are: algae body as a single cell or even into a variety of groups; cell walls composed of silica and pectin, but also by the structure of the shell and the shell under the combined set of the Cheng, vertical section view was "soap-box"-shaped; in the upper and lower shell surface of the shell are patterns arranged in patterns on both sides of the main mode of symmetry and radial symmetry is divided into two categories, for the classification of the most important basis; be able to campaign Type in the shell has a shell side seam, can not be changed no shell seam types; pigment body sheet or ribbon, 1 or 2, or for multiple small discoid, yellow green or brown, containing chlorophyll a, c, also contains fucoxanthin and silicon A flavin and other photosynthetic pigments; storage material mainly for oil droplets; reproduction mainly for cell division and cell division in diatoms obvious features are: each cell division, resulting from two sub-cells,, only one and the mother cell and so big, the other one is smaller.

其主要特征是：藻体为单细胞或连成各式群体；细胞壁由硅质和果胶质组成，而且在结构上都是由上壳和下壳套合而成，纵断面观呈"肥皂盒"形；在上下壳的壳面上有花纹，花纹排列的方式主要分为两侧对称和辐射对称两大类，为分类上的最重要依据；能运动的种类在壳面都有壳缝，不能动的种类均无壳缝；色素体片状或带状，1个或2个，或为多个小盘状，黄绿色或黄褐色，含叶绿素a、c，还含有墨角藻黄素和硅甲黄素等光合色素；贮藏物质主要为油滴；繁殖方式主要为细胞分裂，硅藻的细胞分裂的明显特点是：每次细胞分裂所产生的2个子细胞中，仅有1个和母细胞等大，另1个则稍小。

The main results were as follows:An appropriate concentration of ethephon sprayed on leaves of peanut made stems and branchs height shorter,but more branches;The fresh weight and dry weight per unit of leaf area and per plant increased;It optimized some physiological and biochemical characteristics in the leaves.It was showed that the ethephon increased obviously the contents of protein and chlorophyll and the activity of SOD and POD in the leaves,and improved the rates of photosynthesis and transpiration of the leaves,and increased the activity of the roots,but decreased the content of MDA in the leaves;It improved the quantity of pods,the percentage of plumy pods and the peanut yield.

结果表明：喷施适宜浓度的乙烯利可使植株相对矮化，抑制花生地上部分的生长，使主茎和分枝长比对照短，但分枝数较多；提高单位叶面积鲜重、干重以及植株鲜重、干重；优化花生植株的生理生化特性，表现为显著提高了花生叶片的蛋白质含量和叶绿素含量及SOD和POD活性，增强了花生叶片的光合速率和蒸腾速率，增强了主根活力，降低了花生叶片的丙二醛和可溶性糖含量；提高植株的单株结荚数、饱果率和产量。

Treatments with 20μmolL^(-1) CoCl2 and 20μmolL^(-1) AVG did not influence the contents of putrescine, spemidine, spermine, chlorophyll, and the production rate of reactive oxygen species. However, after 12h heat stress of 45℃, treatments significantly promoted the above values.

但经45℃高温胁迫12h后，20μmolL^(-1) CoCl2与20μmolL^(-1) AVG溶液处理显著提高了上述3种多胺的含量，减缓了抗氧化酶活性的下降，对活性氧水平及脂质过氧化水平的增加也起到了有效的抑制作用，这些改变可能对叶绿素降解的减少及膜稳定指数下降的减轻发挥着重要的作用。

The treatments of NPK and NPK+BCF were better than those of N, NP, NK on the plant height, stem, leaves area, chlorophyll, bearing fruit stick, extent of unfolding, the time of blooming and bearing fruit, and plant soma changes of harvest time. The ratio of basal manure to after manuring and the different ratio of after manuring showed mutual effects: The excessive nutrient had unfavorable influences on plant growth and development in former time.

NPK+BCF及NPK的配方在株高、茎粗、叶面积、叶绿素含量、结果枝、展开度、开花期和挂果期、收获期植株营养体变化等指标上都优于NP、NK及只施N肥的配方；不同基追肥比例及不同追肥比例表现出共同的效果：前期施入过多的养分不利于茄子植株的生长发育。

The rusults indicated that the temperature in forest was lower and the growth of ginseng was slower than out of forest, the yields were also lower; with the increase of ginseng age, the rate of net photosynthesis became higher; when the canopy density of forest reached to about 0.7～0.8, the net photosynthesis, hight, root weight, transpiration,chlorophyll conten of ginseng were higher than others, indicating that both lower and higher canopy density would reduce the rate of net photosynthesis of ginseng, and that the canpoy density of stand could be adjusted to satisfy the temperature and lighting for ginseng, and to provide the optimum ecology enviorment for the growth of ginseng.

结果表明，在生长季节内，林内温度低于林外温度，林下人参生长发育较差，产量较低；林分郁闭度为0.7~0.8时，人参的净光合速率、株高、单根重、叶绿素含量等指标较高；而郁闭度过高或过低都会影响人参生长发育；随着人参年龄的增加，净光合速率有逐渐升高的趋势。通过人为调节林分郁闭度的方式来满足人参对温度和光照因子的需求，为林下人参生长发育提供最适宜的生态环境。

The effect of N forms and Ratios on iron nutrition in hydroponically grown lettuce were investigated. It was found that suitable ratioNO3--N:NH4+-N:CO(NH22 =6:6:0 in nutrient solution can significantly promote plant growth, raise chlorophyll content, improve plant iron utilization efficiency, and reduces nitrate content accumulation in leaves, and the cost of nutrient solution was thus reduced.

硝态氮、氨态氮与酰胺态氮及其不同配比对水培油菜铁素营养的影响试验，结果表明，不同形态氮素显著影响植物的铁素营养状况，NO_3~--N：NH_4~--N：CO(NH_2)_2为6：6：0的处理比单一NO_3~--N使用处理，能促进水培油菜生长，提高叶绿素含量，增加植物体内铁的活性，降低叶片中硝酸盐含量的积累，降低营养液成本。

And 67. 5% in Xiangnuo 1 and IR50 respectively when they were under chilling for 2days. Chlorophyll fluorescence data showed that the reaction centers with less accumulation of redundant exciting energy and antenna systems in Xiangnuo 1 were less injured under chilling, with higher qP and qNP which were used to dissipate the redundant exciting energy, and protect the reaction centers from chilling injury. Lower qP and higher Ex as well as decreasing qNP in chilling-susceptible cultivars indicated that its reaction centers and antenna systems were damaged severely by chilling, leading to the lower photosynthetic rate.

叶绿素荧光分析的结果表明，低温下湘糯1号PSII反应中心和天线系统受到的伤害轻，反应中心过剩激发能积累少，可藉较高的qP和qNP进行过剩光能的耗散，保护光合机构免受低温伤害，而冷敏感品种qP下降快，Ex增加较多，但qNP却随低温延长而下降，说明它的反应中心和天线系统都受到了严重的低温伤害，导致光合能力下降。

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。