The method greatly decreases the difficulty of measuring leaf area of field-living plants.
该处理方法大大降低了野外活体叶片面积的测量难度。
Using TWAIN standard, the leaf area measurement system is improved so that image data can be read directly from digital image equipment.
利用TWAIN标准对原植物叶片面积测量系统进行了改进，使其可以直接从支持TWAIN标准的数字化图像输入设备读取图像数据。
Very young plants do not have sufficient leaf area to carry out high rates of photosynthesis, while older plants are subject to senescence.
幼小植物没有足够大的叶面积进行高效率的光合作用，而较老植物又趋于衰老。
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。
Epiphytes have a tremendous leaf area index (LAI).
林冠附生植物还具有较大的叶面积指数(LAI)。
The leaf area is correlated positively with the root -length.
叶面积与根长呈极显著的正相关。
The seedling height and the leaf area increased after treatments.
处理后的幼苗株高增加，叶片增大。
This is closely related to the distribution of leaf area of population.
这与种群的叶面积分布特征密切相关。
The dynamics of leaf area accorded with the curves of second-order equation.
叶面积消长动态符合一元二次方程变化曲线；
The leaf area index followed an "s" curve increase, conforming to a logistic model.
叶面积指数呈“S”型增长，并符合逻辑斯蒂模型。
The leaf area increased 5 and 3 fold in the closed and diffusive conditions, respectively.
叶面积在封闭和通气条件下分别增加了5倍和3倍。
The soil moisture content and leaf area index (LAI) are the critical factors in energy partition process.
在平衡过程中，土壤含水量和叶面积指数(LAI)是决定能量分配的关键因素。
The light distribution within the canopy is subject to the leaf area index and the extinction coefficient.
光在冠层内的分布，受叶面积指数和叶片消光系数支配。
The plant height compound leaf number chlorophyll content and total leaf area were significantly increased.
植株的株高、复叶数、叶绿素含量和总叶面积都显著提高；
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。
The fruit weight, leaf area, nucleus weight and nucleus rate have larger coefficient of variation and over 20%.
其中，果重、叶面积、核重和出核率的变异最大，变异系数均达到20%以上。
Therefore, the photosynthetic rate of grafting plant increased mainly due to expanding total leaf area of melon plant.
因此，嫁接主要是通过扩大植株的总叶面积来提高植株的光合速率的。
To measure the leaf area coefficient and productivity more conveniently, this paper draws up an useful leaf area table.
为了便于测定叶面积系数和生产率，编制了有使用价值的叶面积表。
The vegetation index (NDVI) and leaf area index (LAI) are two key important land vegetation ecosystem status parameters.
植被指数(NDVI)和叶面积指数(LAI)是两个非常重要的陆地生态系统植被状态参数。
Moreover, there were appropriate leaf area index and higher photosynthetic rate of flag leaf at medium row-spacing treatment.
此外，中等行距配置群体具有适宜的叶面积指数和较高的剑叶光合速率；
In this research, the portable leaf area meter is designed by combining microcontroller with light source LED and light sensor.
本研究利用微控制器作为控制单元，结合LED光源和传感器设计研制了一种便携式叶面积仪。
The leaf image taken by digital camera often has linear geometric distortion, it can bring error to the measurement of leaf area.
数码相机摄入图像时产生的线性几何畸变会给叶片面积的测量带来误差。
Studied on the relationship between leaf area composition of population and photosynthetic production of rice at middle growth stage.
通过密肥试验，研究水稻生育中期群体叶面积组成与光合生产的关系。
The leaf area, leaf dry weight and specific leaf weight (SLW) of 3-year-old alfalfa were studied under different fertilizing treatments.
研究了不同施肥处理对3年生紫花苜蓿开花期叶面积、叶干重及比叶重的影响。
Additionally, genotypic (genet) variation of plant dry weight, total leaf area and total stolon length in the experimental plants was found.
植株干重、总叶面积和总匍匐茎长度具有显著的基株间差异。
Appropriately reducing plant height, extending silking date and increasing ear leaf area might be useful in improvement of stalk sugar content.
适当降低株高，推迟吐丝日期，增加穗位叶面积有利于提高玉米茎秆含糖量。
At the late period, plant height, stem diameter and leaf area index of the bio-organic fertilizer treatments were higher than that of the control.
在生长后期，经过生物有机肥处理的株高、茎径和叶面积指数均比对照区高。
The decline of photosynthetic rate at the community level mainly resulted from reduced leaf area after a long time treatment of low soil moisture.
长期低土壤水分处理后，群体光合能力的下降主要是由于叶面积的减小。
The trends of absolute increasing rate of LW and absolute expanding rate of leaf area (LA) were represented by positive-negative single-peak curves.
叶片干重的绝对增长速率动态和叶面积的绝对扩展速率动态为正-负单峰型。
The rate of green leaf area decrease was negatively related to increase the well grain-filling grain percentage (PGP) and grain filling degree (GF).
叶面积下降速率与颖花的充实粒率及籽粒充实度呈负相关关系。
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