Answer:
High Temperature
Step-by-step explanation:
Transpiration is the process in which water is lost from the plant through evaporation from its leaves. During transpiration, water moves through the plant and is lost through the stomata of the plant as vapour.
Actually, the water absorbed from the soil through the roots of the plant is not fully utilized and the excess is lost through transpiration.This lost through transpiration is more feasible at high temperature because water evaporates faster at higher temperature. At higher temperatures also, the stomata of the leaves of the plants also open up making it easier for transpiration to occur.