论文部分内容阅读
本文提出了作物茎鞘内输导组织对光合产物分子输送速度差异的测量方法、光合产物通过茎鞘某小段对输送速度差异度（Ｅ）的概念和Ｅ值［作物光合产物被鞘（或茎）输导组织输送的各个速度和基准速度差值的加权平均值与基准速度Ｖｍ的比］的测算公式，即：并实际测定了水稻品种６６５苗期倒二叶鞘上部的Ｅ值，Ｅ＝０．３４９３。讨论了一定时间内流过茎或鞘某截面标记光合产物量（即流量）的活体动态测定方法．流量ｍ的测算公式为：
In this paper, we present a method for measuring the difference in the rate of molecular transport of photosynthetic products between the stems and sheaths of the crop. The concept of the difference in transport velocity (E) between the photosynthetic products and the E value [ ) The formula for calculating the ratio of the weighted average value of the difference between the speed and the reference speed delivered by the guiding tissue to the reference speed Vm, that is: E value of the upper part of the second leaf sheath of rice 665 at the seedling stage, E = 0 .3493. In this paper, we discuss the in vivo kinetic determination of the amount of photosynthetic products (ie, flux) that cross a section of a stem or sheath over a period of time. The calculation formula of flow m is: