the ratio between the length of successive leaves in the apex of a growing shoot.
| 单词 | θ25461 |
| 释义 | the world > plants > botany > [noun] > ratio or index of development of shoots (2) plastochron ratio1948 the ratio between the length of successive leaves in the apex of a growing shoot. plastochron index1955 an index for measuring the developmental age of a shoot, based on the number of leaves that are not less than some stated length, plus a fractional… |
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