Simard et al. 1997) further hypothesized that if reciprocal transfer did occur, it would be a source- sink relationship driven by photosynthetic rates. That is, if one seedling is in full sun and the other in deep shade, there will be a net movement of carbon from the seedling in full sun to the one in deep shade. If a shade was placed over the birch seedlings and the cedar, and the Douglas fir was left in full sun, what result could Simard and colleagues expect?

Question

Quizplus · Accepted Answer

The hypothesis suggests that carbon would move from the sunlit seedling to the shaded one. Since the Douglas fir is in full sun, it would transfer carbon to the shaded birch, resulting in more ¹³C in the birch.

Simard Et Al