Soru

In late nineteenth-century botany, the study of plant transpiration relied heavily on potometers—devices designed to measure the rate of water uptake by a leafy shoot. Early researchers assumed that the rate of water absorption recorded by the potometer was precisely equal to the rate of water transpired through the stomata. However, in 1898, plant physiologist Francis Darwin demonstrated that under conditions of rapid atmospheric fluctuations, a plant shoot could absorb water to replenish its internal tissues without immediately transpiring that water into the air. Consequently, while potometers offered valuable comparative data regarding relative transpiration under stable environmental conditions, their readings could not be interpreted as absolute measurements of real-time transpiration during sudden humidity shifts.

Based on the passage, which of the following can be inferred regarding nineteenth-century studies of plant transpiration? Consider each of the choices separately and select all that apply.