The most distinctive biological feature is the Leaf Area Ratio(LAR), it is higher in former phase and lower in later, and decline to its smallest around the period of Milky Ripeness.
叶面积比率的生物学特征最为明显，冬小麦返青到拔节期间的叶面积比率最大，拔节之后，叶面积比率逐渐下降，在冬小麦乳熟期前后达到最小。
The grain-leaf area ratio was a quantitative expressing way to evaluate the coordinative level of source-sink relationship and was taken as a comprehensive index to select the variety of high yield.
粒叶比是衡量源库关系是否协调的一种数量化表示方法，被作为筛选高产品种的综合指标。
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。
The relationship of production of population dry matter was strong with the leaf characters such as ratio of leaf weight with leaf area, chlorophyll content and population photosynthetic rate.
比叶重、叶绿素含量和群体光合速率等叶片性状与群体干物质生产密切相关。
The growth and leaf area of WB was larger than GB. During vegetative growth, net assimilation ratio (NAR) was low, and increased during reproductive growth.
锦穗白豆角的生长量和叶面积都比新青青豆角大。 两品种的NAR在营养生长过程都较低，生殖生长过程则提高。
In long shoot, the leaf width, leaf length, leaf area, petiole length and basal Angle decreased, but the leaf index and the ratio of lobation increased as its arrangement increased.
一年生长枝叶片的叶宽、叶长、叶面积、叶柄长、叶基角均随叶序的增加逐渐减小，叶形指数和有缺刻叶的比例则增加。
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。
After elongation leaf area index was linearly related to ratio index R(760,710), and aboveground fresh and dry weight showed significant relations with ratio index R(1650,1100) in rice.
发现比值指数R（760，710）与水稻叶面积指数呈极显著线性相关；而比值指数R（1650，1100）与水稻地上部鲜质量和干质量均呈极显著幂函数相关关系。
B. campestris content of leaf chlorophyll, leaf area index , leaf area-weight ratio were positive significantly correlated with the PR.
红菜苔叶片叶绿素含量、叶面积指数及比叶重与群体光合速率成正相关；
Heat tolerant cultivar is higher than heat sensitive cultivar in leaf phloem area ratio and leaf sheath duct area ratio, while lower in leaf duct area ratio and leaf sheath phloem area ratio.
耐热品种的叶片韧皮部面积比例、叶鞘导管面积比例大于不耐热品种，叶片导管面积比例、叶鞘韧皮部面积比例则小于不耐热品种。
Sun-shading can promote the growths of leaf age and tiller, and the leaf-area. The negative impacts on length of fibre cell, coefficient of flexibility, ratio of length and diameter.
遮阳处理能促进叶龄、分蘖的增长，但不利于叶面积的增长，对纤维细胞的长度、柔性系数、长宽比等也产生不良影响。
Sun-shading can promote the growths of leaf age and tiller, and the leaf-area. The negative impacts on length of fibre cell, coefficient of flexibility, ratio of length and diameter.
遮阳处理能促进叶龄、分蘖的增长，但不利于叶面积的增长，对纤维细胞的长度、柔性系数、长宽比等也产生不良影响。
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