The seedling growth and photosynthetic characteristic of three ligneous plants with different evolutionary time to UV-B radiation stress
UV-B辐射胁迫下不同起源时期的3种木本植物幼苗的生长及光合特性

Due to stratospheric ozone depletion,increase of solar UV-B reaching the surface of the earth was one of the most important environment problems in the worldwide scope.Elevated solar UV-B radiation exerted effects on plant through actions on photosynthetic system,protein,DNA,membrane system and phytohormone.The responses of plant physioecology and growth to ultraviolet radiation enhancement got more and more attention in the scientific community.Three treatments,including an exclusive UV-B radiation group,a...