叶绿素

Under mild temperature and light(20℃ and 12 h),the SPAD value showed little variation.

利用SPAD值来代表作物叶绿素的含量，已在多种作物上得到应用[2-4]。

The physiology basis used by SPAD一502 chlorophyll meter to determine the crop nitrogen status was introduced in this paper.

叶绿素仪是近年来欧美一些国家在推荐施氮中开始使用的一种新型便携式仪器。

The results showed that there was a significant linear correlation between SPAD value and chlorophyll content; SPAD value varied significantly between two varieties.

结果表明；苹果叶片的叶绿素含量与SPAD值呈线性相关；品种间的SPAD值和光谱反射率都存在差异。

SPAD values of relative chlorophyll in CK were significantly lower than in Mo application in 34 winter wheat cultivars.

缺钼时类胡萝卜素含量同叶绿素含量一样显著下降，并与之在不同时期呈现一致的变化趋势。

Relationship about the SPAD value and chlorophyll content for 9 varieties of mulberry leaves was established, while the regression models were given.

建立了9个品种桑叶的叶绿素含量与SPAD值之间的关系，并列出了方程。

The resuits showed that there was significant difference of SPAD among different leaves under same nitrogen level.

结果表明，在同一施氮水平下，小麦植株不同叶片SPAD值及光舍速率均为：旗叶〉倒二叶〉倒三叶〉倒四叶，说明小麦叶片叶绿素含量及光舍速率在植株上的分布特征相对固定，受施氮水平的影响较小。

Relationship between SPAD readings chlorophyll contents and yield of po-tato.

马铃薯叶片 SPAD 值与叶绿素含量及产量的相关性研究。

In the third part, the diffetences of effects of exogenous spermidine on the antioxidation character and PAs contents under salt stress.

喷施Spd可以提高盐胁迫下两种水稻的叶绿素含量、PSⅠ、PSⅡ及全电子链电子传递速率。

Chlorophyll content, Soluble protein content, POD activity, CAT activity, SOD activity, and MDA content of Spirodela polyrhiza were measured, and transmission electron microscopy was observed.

主要测定了叶绿素含量、可溶性蛋白含量及抗氧化系统的几种酶，包括印POD、CAT、SOD的活性以及MDA含量的变化，并观察了叶绿体超微结构的变化。

Results:(1) The conchosporangia of brown yellow mutant was smaller and mature time was 15 days later than the parents. Thallus grew slowly in early stage, but average daily growth rate reached (7.50±1.18) cm after blade length was over 60 cm.(2)The emerald conchocelis were easy to mature and had special developmental mode that the spherulocytes can directly develop into sporangial branchlets and conchosporangia without thick conchocelis stage. Emerald blades were low in RPE with just (6.4710±0.0184) mg/g dry mass. The thallus grew quickly, average daily growth rate reached (11.95±2.33) cm after blade length was over 60 cm.(3) The conchocelis filaments of breen mutant were thin and short. Thallus grew slowly and had low contents of three phycobiliprotenin and chlorophyl.

实验进行50d。结果：(1)褐黄色突变体藻蓝蛋白和别藻蓝蛋白含量低；孢子囊枝的细胞较小，且大量形成时间比亲本晚15d；幼苗培养初期日平均生长量仅为(1.22±0.28)cm，当叶片长到60cm左右时生长优势逐步凸显，日平均生长量可达(7.50±1.18)cm；(2)翠绿色丝状体容易成熟，发育方式特殊，营养藻丝不经过藻丝加粗阶段，直接由球形细胞发育成孢子囊枝和壳孢子囊；翠绿色叶状体藻红蛋白含量低，仅有(5.5130±1.0496)mg/g；叶状体生长快速，60cm长的藻体日平均生长量高达(11.95±2.33)cm；(3)褐绿色突变体藻蓝蛋白、别藻蓝蛋白和藻红蛋白这3种色素蛋白和叶绿素的含量均较低；藻丝细胞短且细，叶状体生长速度较慢。

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。