During the water stress period, the isoprene emission from the seedling of Eucalyptus citriodora was slightly increased and then dropped when the photosynthesis rate was closely to zero.

• 柠檬桉苗木处于缺水处理期间，异戊二烯释出量有稍微增加的趋势，至光合作用速率接近停止时异戊二烯释出量开始下降。