Responses to Increased Moisture Stress and Extremes: Whole Plant Response to Drought under Climate Change

摘要

In this chapter, we tackle the physiology ofudplant water use from the angle of how this willudbe modified in a context of a changing climate.udTwo recent reviews cover a number of innovativeudaspects to drought research, in particular in relationudto research on roots, and advocate the needudto look at the soil–root–shoot–atmosphere waterudmanagement in a comprehensive and dynamicudmanner (Vadez et al. 2007, 2008). In the presentudchapter, we revisit some of these aspects fromudthe perspective of changing climatic conditionsudand explore the major issues that climate change will bring about, and how it will affect cropudproduction and in particular under water-limitedudconditions. These issues can be broadly groupedudinto two categories: (1) thermodynamic aspectsudof the soil–plant–atmosphere water relations andud(2) growth and development aspects.