叶面积系数和根条数变化也是如此。
拔节抽雄期夏玉米耗水量与玉米叶面积系数呈正相关；
Summer maize water consumption varied exponentially with maize leaf area index at the filling stage.
直射光的透过率随着叶面积系数增大而减小，夏半年大于冬半年。
The transmissivity of summer half year is larger than winter half year.
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。
To measure the leaf area coefficient and productivity more conveniently, this paper draws up an useful leaf area table.
柑桔栽植密度、树冠覆盖率、叶面积系数和光照强度与产量呈极显著相关。
The fruit yield of sweet orange was found to be highly significantly correlated with planting density, canopy cover rate, leaf area index and light intensity in densely planted orchards.
源库调节后，植株源供应能力明显减少，叶面积系数显著下降，单株生产力也显著降低。
When the source-sink was regulated the supply ability of plant and LAI are decreased remarkably, and the single plant productivity is also reduced prominently.
结果表明：梨树叶幕光能分布状况直接受叶面积系数、树冠结构、太阳位置及光强的影响。
The result showed that the light distribution in the canopy were obviously affected by the leaf area index (LAI), the structure of canopy, solar radiation and its apparent movement, etc.
谷雨节前后播种，叶面积系数与单株生产力协调一致达最佳，玉米产量最高，既能抗夏旱又能避伏旱；
Sowing seeds about April 20, the coefficient of leaf area assort with the productivity of single plant, the yield of maize is tallest, and can resist and avoid the drought;
不同生育期太阳光中的有效辐射总量不同，群体叶片的平均光补偿点不同，最大的叶面积系数指标也不同。
In each of growth stages, the total available radiation in sunlight wasn't same, the average light compensation point of colony leaves was different, so was the most large leaf area index.
结果表明：脱毒马铃薯的群体光合速率、群体叶源量、干物重量、叶面积重量、叶面积系数均优于未脱毒处理。
The results showed the mass photosynthetic rate, mass leaf source amount, dry matter weight, leaf areas weight and index of virus-free potato were superior to that of potato.
在最高产量时，紧凑型玉米品种与松散型玉米品种相比具有叶面积系数大，干物质积累数量大，经济系数高等特点。
At same time, the leaf area coefficient, dry matter accumulation and economic coefficient of compact type corn variety is bigger than loosely type corn variety.
各种类叶面积的增长速率与高生长速率之间存在着正相关关系，绝大多数种类的相关系数在0.8—0.9左右。
The correlation coefficients between rate of leaf growth and height growth of these seedlings are all positive and most of them lie between 0.8-0.9.
模型对冬小麦—夏玉米轮作体系作物叶面积指数、作物系数、根系生长与分布进行了模拟。
In the model, the leaf area index (LAI), crop coefficients, and root penetration and distribution were simulated for the winter wheat and summer corn double cropping system.
光在冠层内的分布，受叶面积指数和叶片消光系数支配。
The light distribution within the canopy is subject to the leaf area index and the extinction coefficient.
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。
The fruit weight, leaf area, nucleus weight and nucleus rate have larger coefficient of variation and over 20%.
经方差分析比较证明，应用回归方程法计算的叶面积比用矫正系数法更为可靠。
The result of variance analysis revealed that regression equation method could give a more reliable result than leaf area correction coefficient method for the leaf area measurement.
应用长宽系数法测定苎麻叶面积时，需要求出相应的换算系数。
Leaf area measure, as a physiology index, is important for shoot diagnose in field, so the suitable conversion coefficient should be determined for the leaf area measure.
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。
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.
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