Effects of water and nutrient treatment on gas exchange and water relations of two Casuarina equiseti folia clones

摘要

The relative success of a plant, both in an evolutionary sense and in terms of biomass productivity, depends on its ability to sequester and efficiently utilize soil resources that often are scarce.Nitrogen (N) and water are considered to be the resources most often limiting survival, reproduction, or growth, although macro‐or micro‐nutrients, oxygen, physical space, or other soil factors also may be important in some circumstances.The ecophysiological responses of plants to fluctuations in available water and N, therefore, have been and will continue to be important subjects of research (Evans, 1989).