论文部分内容阅读
光合生产率(或净光合生产率)是单位叶面积经过一定时间所制造的干物重的多少,因此测定光合生产率时则要涉及到叶面积的度量。关于测定叶面积的方法是很多的,但是这些方法研究的观点多从简化直接量取叶面积的手续方面着手,因此应用时固然较之用求积仪的基本方法有很大方便,但若研究的对象为大规模的田间试验,因为样本数量太多,叶面积仍逐叶量取,依然会感到费工费事。本研究的目的拟用间接省事的方法推求叶面积。根据一般观察,在任何情况下小麦叶面积
The photosynthetic productivity (or net photosynthetic productivity) is the amount of dry matter produced per unit leaf area over time, so measuring leaf photosynthetic productivity involves measuring leaf area. There are many methods for determination of leaf area. However, the research on these methods is mostly based on the simplification of the procedures for directly measuring the leaf area. Therefore, it is very convenient to apply the method rather than the basic method of using a sigmaimeter. However, The object is a large-scale field experiment, because the number of samples is too large, leaf area is still by the leaf amount, still will find it laborious. The purpose of this study is to estimate the leaf area by using the method of indirect save. According to the general observation, in any case the wheat leaf area