摘要
为研究全红杨叶片内在色素与外在色相的特性及其关系,探讨全红杨的呈色机制,比较分析了生长季不同时期全红杨、中红杨和2025叶片中色素含量和叶色参数的差异。结果表明,全红杨叶片含有较多的光合色素(叶绿素a、b和类胡萝卜素)和非光合色素(花色素苷),尤其是花色素苷含量显著高于中红杨和2025,三者叶色差异明显。全红杨色相a*值和色光值始终为正值,色相b*值为较小的正值,叶色始终以红色为主;中红杨色相a*值和色光值由正值变为负值,色相b*值为正值并逐渐变大,叶片红色转淡,出现返绿现象;2025杨色相a*和色光值为较低的负值,色相b*为较高的正值,叶片始终呈现黄绿色或绿色。此结果与叶片色素比例的变化对叶色的影响结果相一致。
In order to study on inner pigment and external hue characteristic of Populus×euramericana'quanhong'leaves and their relationship,the coloration mechanism of Populus×euramericana'quanhongT,the differences in photosynthetic characteristics,and pigment contents between Populus×eurarnericana'zhonghong'and Populus linn 2025 were analyzed.The results showed that the leaves of Populus×euramericana'quanhong×contained more photosynthetic pigment(chlorophy a,b and carotenoid)and non photosynthetic pigment(Anthocyanin),especially the anthocyanin content significantly higher than that of Populus X euramericana zhonghong'and Populus linn 2025,and the three leaf color differed singificantly.When the hue a^*value of PopulusXeuramericana'quanhong'leaf and the color value were always positive and hue b^*value were smaller positive with red leaf color;when the hue a^*value of Populus;eurameri-cana'zhonghong'leaf and the color value changed from positive to negative and hue b^*were pos-itive value and increases,with leaf red to light and appearing to return to green~when the hue a,value of phenomenonPopulus linn 2025 leaf and the color value for the lower were negative value and hue b^*was high positive,the blade always appeared yellowish green or green.The result was in line with the change of the pigment leaves ratio related to the influence of color.
作者
杨淑红
YANG Shu-hong(Henan Academy of Forestry,Zhengzhou 450008,China)
出处
《河南农业科学》
CSCD
北大核心
2012年第12期131-137,共7页
Journal of Henan Agricultural Sciences
基金
国家林业局推广项目(2010TK35)
关键词
全红杨
色素
叶色
色差仪
Populus×euramericana
quanhong
pigment
leaf collor
colorimeter
