论文部分内容阅读
玉米叶面积的大小,特别是叶面积系数的大小,与玉米产量关系极大。在进行玉十新组合产量比较试验时,如能测定各组合的叶面积和叶面积系数,对了解组合高产的原因,确定种植密度,都有重要作用。玉米叶面积快速测定法简便可靠,与实测的叶面积基本一致,误差极小。在不同组合、不同密度、不同小区中使用,效果都是一样。具体方法是:
The size of corn leaf area, especially the size of leaf area coefficient, has a great relationship with corn yield. When comparing the yield of Yushu new combinations, if the leaf area and leaf area coefficient of each combination can be determined, it is important to understand the reason of high yield and determine the planting density. Rapid determination of leaf area of corn is simple and reliable, and the measured leaf area is basically the same, the error is minimal. In different combinations, different density, different district use, the effect is the same. The specific method is: