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Is plant growth limited by photosynthesis or by the capacity to grow?
Determine whether plant growth is limited by photosynthesis or by cell division and expansion, and how climate change shifts the balance.
比较改动
选两个分支看看改了什么，再发起 PR 把工作带过去。
选两个不同的分支
PR 可以从任何一个分支合入任何另一个分支。