英语翻译用分光光度法对不同时期紫叶李和普通绿叶李叶片中叶绿素、类胡萝卜素和花青素的含量进行测定分析,系统观察和记载两种树

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英语翻译
用分光光度法对不同时期紫叶李和普通绿叶李叶片中叶绿素、类胡萝卜素和花青素的含量进行测定分析,系统观察和记载两种树木的叶色变化.结果表明：在3月到7月,紫叶李叶片中叶绿素、类胡萝卜素和花青素含量总体上均呈上升的趋势,叶绿素a和b含量的变化趋势与叶绿素总量的变化趋势相似,三种色素的综合作用使紫叶李叶色越来越深；紫叶李叶色与三种色素的变化呈正相关关系；绿叶李叶色与叶绿素/类胡萝卜素呈正相关关系,对绿叶李的叶色变化起主要作用的是叶绿素和类胡萝卜素,绿叶李叶片中花青素含量的变化不显著,它对叶色变化的影响有限.

To test and analyze the chlorophyll,carotinoid and anthocyanin contents of leaves from prunus cerasifera （或purple - leafed plum）in different periods and ordinary green-leafed plum with spectrophotometry,and then to observe and record systematacially the changes of leaf colour of these two plants,here comes the results:from March to July,the chlorophyll,carotinoid and anthocyanin contents of leaves from prunus cerasifera overall increased,the changing tendency of chlorophyll a and b total contents are similar to the chlorophyll total content.The leaf colour of purple - leafed plum became darker and darker,which is due to the comprehensive effect of these three pigments.The leaf colour of purple - leafed plum has direct correlativity with the contents of the three pigments.There is also a positive correlation between green- leafed plum and chlorophyll/carotinoid.Chlorophyll and carotinoid play the most important role in changing leaf colour of green- leafed plum whose the anthocyanin content ,which gets limited influence on changing leaf colour,is no significant change.
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英语翻译用分光光度法对不同时期紫叶李和普通绿叶李叶片中叶绿素、类胡萝卜素和花青素的含量进行测定分析,系统观察和记载两种树色素中能进行光合作用的除了叶绿素和类胡萝卜素外还有哪些? 高一生物必修一上说绿叶中的色素有四种,叶绿素a.b 叶黄素和类胡萝卜素.我怎么觉得还应该有花青素? 提取分离绿叶中色素时,碳酸钙的作用是防止叶绿素被破坏,还是防止叶绿素和类胡萝卜素被破坏呢? 叶绿素a含量的测定用单色分光光度法测定叶绿素含量时,要测定665和750nm处的吸光度．根据文献,665nm处光密度值应叶绿素a和叶绿素b含量测定的实验,求结果分析请问哪个单位或者机构能够检测叶绿素含量和叶片中重金属元素的含量液泡中只有花青素一种色素和一些有机物...,没有叶绿素和类胡萝卜素,那为什么说色素主要存在于液泡中? 叶绿体和液泡中都含有叶绿素和类胡萝卜素吗? 有人说液泡里含类胡萝卜素和胡萝卜素,而有人说只有花青素? 采集同一种植物、不同植株的4张成熟叶片进行观察测量,并记录和分析其差异性用原子吸收分光光度法测定土壤中铜和锌的含量,土壤采样时要注意什么? 光合作用中叶绿素和类胡萝卜素的合成都需要水吗