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蒸腾强度(Tr)和气孔扩散阻力(Rs)是反映果树水分状况的重要指标,与果树的光合作用、代谢强度以及抗旱特性等都有密切关系。研究果树的Tr和Rs,对于进一步了解果树的生理特性、提高果树产量都具有重要的理论和实践意义。关于几种果树Tr和Rs与抗旱性的关系、日变化以及水分胁迫对它们的影响,本文作者已作报道,本文主要报道有关不同树种、品种、枝类和不同节位叶片Tr和Rs特性方面的工作。
Transpiration (Tr) and stomatal diffusion resistance (Rs) are important indicators of fruit tree water status, and the fruit tree photosynthesis, metabolic intensity and drought resistance are closely related. Studying Tr and Rs of fruit trees has important theoretical and practical significance for further understanding the physiological characteristics of fruit trees and increasing the yield of fruit trees. The relationship between Tr and Rs of several fruit trees and drought resistance, diurnal variation and the impact of water stress on them were reported by the authors of this paper. In this paper, we report on the Tr and Rs characteristics of different tree species, cultivars, branches and leaves at different nodes work.