叶绿素的

Chlorophyll, carotene, rhodopsin, and melanin are pigment s produced by plants and animals for specialized purposes.

叶绿素、胡萝卜素、视紫红质和黑素是用动植物制成的用作特殊用途的颜料。

Five nitrogen concentrations including 0 mg/L,150 mg/L,300 mg/L,450 mg/L and 600 mg/L were sprayed on the root of D.styracifolium in field to study the effects of different N concentration on gas exchange,chlorophyll content,soluble protein content and nitrate reductase activity in leaves of seedlings.

采用田间试验的方式，设0mg/L，150mg/L，300mg/L，450mg/L和600mg/L5个N浓度处理，研究其对广金钱草苗期叶片气体交换、叶绿素含量、可溶性蛋白含量和硝酸还原酶活性的影响。

The results indicated that:(1) plant height and tillering number decreased, and root length, root surface area, root volume and rootlet number increased under drought stress; straw mulched on surface soil and pig manure mixed in soil could improve the growth and morphological property of rice root, while straw mixed in soil and pig manure mulching had no significant effects;(2) the contents of chlorophylls and the activities of SOD, POD and CAT decreased significantly under drought stress, and straw mulching on surface soil and pig manure mixed in soil could restrain these decreases.

结果表明：①干旱胁迫下水稻株高降低、分蘖数减少，根系则表现出主根伸长、支根增多、根表面积和根体积增加；秸秆表施和猪粪混施可明显改善水稻的生长和根系形态，而秸秆混施和猪粪表施的改善作用不显著；②干旱胁迫下叶片叶绿素含量显著降低，超氧化物歧化酶、过氧化物酶及过氧化氢酶活性均显著下降，秸秆表施和猪粪混施能够在一定程度上抑制这种下降幅度。

The experiments of nitrogen form showed that maize seedling treated by ammonia nitrogen (NH42SO4 contained more chlorophyll than that treated by saltpeter nitrogen Ca(NO32,and the statistical analysis was significant.

通过不同形态氮肥试验，表明氨态氮处理的叶片叶绿素含量显著高于硝态氮处理，可能的原因是：(1)氨态氮易于吸收，施用初期效果快；(2)氨态氮中微量元素比较高。

Seedlings of Parthenocissus heterophylla, Campsis grandiflora, Ficus pumila, Euonymus fortunei and Psychotria serpens were planted uniformly along the foot of a cement wall and then half of them were shaded from 90% of the natural light. After growing for a period of time, some indices, such as capacity to adhere to walls, covering landscape, leaf chlorophyll content, and Pn at different photosynthetically active radiation were investigated.

爬墙虎、凌霄、薛荔、扶芳藤和蔓九节5种爬藤植物沿水泥墙角均匀栽培，并作遮光处理，生长一段时间后观测它们对墙体的附着力、景观覆盖效果、叶片叶绿素含量，以及不同光合有效辐射下的净光合速率等指标。

Sphagnum that was covered with moss was treated with shading. Contend of Chlorophyll of the moss reduced gradually as the time lasted.

对长满青苔的水苔进行遮光处理，青苔叶绿素含量随遮光时间的延长而逐渐减少。

The damage caused by Cl in strawberry was less than that of Na~+ and Ca~+ far away.3.Membrane damage in root and leaf of strawberry was relief by Ca(NO_3)_2,CaCl_2 and Ca_2 treatment under NaCl stress, while leaf holding ability and chlorophyll content was enhanced, growth was improved and the biomass increased.

低浓度Ca(NO_3)_2、CaCl_2和Ca_2作为外源钙均能减轻NaCl胁迫对草莓成株根系和叶片的膜伤害，提高叶片保水力和叶绿素含量，改善草莓的生长状况，提高生物产量。

The green leaves in the absence of chlorophyll, at the same time, other chemical pigments and thus apparent, so we can see more colors such as yellow and brown leaves.

树叶中缺少了绿色的叶绿素，与此同时，其它化学色素因而显现出来，所以我们多看到黄和褐等颜色的树叶。

Nutrients and feeding pressure of zooplankton affected the distribution of chlorophyll a and its size-fractionation.

营养盐分布和浮游动物的摄食压力影响了叶绿素a及其粒级结构的分布。

Results showed that leaf blades, coverage and density of wild zoysia higher than those of tifgreen, but the chlorophyⅡ content was lower.

结果表明：野生结缕草的叶片宽度、盖度、密度大于杂交狗牙根，但相同鲜叶重的叶绿素含量小于杂交狗牙根。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。