Both the seedling and the root was rotted , the vigor of seedling was severely weakened consequently . in addition , chlorophyll of the seedling decreased with increasing concentration , when at 25mg / ml , chlorophyll content was less than 60 . 13 % of the control group . root activity had the similar trends to cha nge of chlorophyll , and it only reached 52 . 54 % of the control group 对小麦幼苗生理生化指标的研究表明：叶绿素含量和根系活力随着青蒿浸提液浓度的升高均明显降低，在浓度为25mg / ml时，叶绿素含量仅不到对照的60 . 13 ，根系活力仅为对照的西南农业大学硕士学位论文，论文摘要
With development and maturation of citrus fruit , chlorophyll content of citrus fruit peel decreased , being acompanied by a gradual decrease in a - carotene and p - carotene which are known to be in the upstream of carotenoid biosynthesis pathway . the decrease continued up to complete vanishment of the carotenes . on the other hand , p - cryptoxanthin , p - citraurin and zeaxanthin that are in the downstream of carotenoid biosynthesis pathway increased steadily and became the principal carotenoid components 随着柑橘果实发育和成熟，果皮叶绿素含量下降，与此同时，位于类胡萝卜素生物合成途径上游的-胡萝卜素、 -胡萝卜素等胡萝卜素成分逐渐下降直至消失，而在类胡萝卜素生物合成途径下游的-隐黄质、 -柠乌素、玉米黄素等叶黄素成分逐渐上升，使得类胡萝卜素总量先略微下降后迅速上升；果实褪绿并呈现其特征色泽。
T . media cv . hicksii seedling " s total leaf area , specific leaf area , biomass , blade ' s thickness , apparent quantum efficiency ( aqy ) and the activity of hill reaction in one - layer shading are biggest . it shows that the ability using weak light is the strongest , which is favour of the accumulation of assimilating outgrown , and that it grows suitably at the place in shading 一层遮荫下生长的植株叶面积、比叶面积、叶片厚度、生物量、叶绿素含量、表观量子效率及hill反应活力最大，说明它利用弱光的能力最强，有利于同化产物的积累，适宜于在遮荫处生长。
The light saturation points , compensation points and dark respiration rates of t . media cv . hicksii seedlings go down while the contents of chlorophyll and the ratios of chlorophyll a and b increase along with the weakening of light intensity of the growing environment , but their co2 compensation points and photorespiration rates go up 遮荫使曼地亚红豆杉幼苗光饱和点、光补偿点及暗呼吸速率降低，但光呼吸速率和co _ 2补偿点升高，叶绿素含量增大而叶绿素a b减小。
Both reduced irradiance and defoliation caused decreased slm ( specific leaf mass ) . ( 4 ) generally , chlorophyll content and chlorophyll concentration increased with reduced light levels , the ratio of chlorophyll a to chlorophyll b of defoliated plants was higher than those of controlled plants , while in latter period , the results were contrary to that of the former period ( 4 )叶绿素含量和浓度总体上都随光照水平的降低而升高，叶绿素a / b在高光条件下显著大于低光水平下的植株，叶损失植株的叶绿素a / b值处理初期小于未受损植株，处理后期则大于未受损植株。
Abstract : spraying chemical controlling matter ( drought - resistant agent ) on wheat blade in medium - late growth period . we found it influenced transpiration rate , water - retaining capacity , containing water content of dry weight , seeping conductive rate , chlorphyll content and so on in different degree , and improved the moisture content stage of wheat , reduced the seeping of electrolyte , have an obvious effect on delaying decrepit and increasing production 文摘:小麦生育中后期叶面喷施化学调控物质(抗旱剂) ，对蒸腾速率、保水力、干重含水量、外渗电导率和叶绿素含量等均有不同程度的影响，明显地改善了小麦的水分状况，降低了电解质的外渗率，有明显的保绿延缓衰老的作用，增产效果显著。
