Chapter 35, Problem 15PIAT

Summary Introduction

To review:

The difference in the stomatal conductance of oak and pine in years 1915 and 2010.

Introduction:

Stomatal conductance refers to the measure of the rate of the passage of CO₂ (carbon dioxide) that enters through the stomata and water vapor evaporated over a time period from stomata. Transpiration refers to the process of movement of water via the plant and the environment. Transpiration takes place through stomata. The following graph summarizes the data obtained by researchers from specimens of preserved collections and stomatal conductance in leaves from oak trees and pine trees that grew at different time intervals under different CO₂ levels.