The grain-leaf ratio is a comprehensive trait estimating photosynthetic productivity of per unit leaf area.
粒叶比是衡量单位叶面积光合生产力的综合性状。
This new metric, the green plot ratio (GPR), is based on a common biological parameter called the leaf area index (LAI), which is defined as the single-side leaf area per unit ground area.
这个新指标——绿色容积率(GPR)是以一个通常被称作叶面积指数(LAI)的生物参数作为基础，该参数被定义为每单位地块面积上的单面叶面积总和。
Leaf fresh mass, water content, leaf mass per unit area, leaf area and pigment of back mutation were approximately the same as green leaves of its red-leaf variations;
②回复突变的红花檵木叶鲜重、含水量、比叶重、叶面积和色素特征等特征均与转绿叶片相似；
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