Growth and Photosynthesis Characters of Tripterygium under the Condition of Different Soil Moisture
Abstract:2-year-old potted grown plants raised by the cuttings of Tripterygium wilfordii were used as materials to study the growth of branches and physiological soil characters under conditions of four artificial controlled drought gradient(80%、60%、40% and 20%),and the results showed that: under four kinds of moisture conditions,the growth of leaves and branches and the leaf quality of Tripterygium wilfordii were increased along with the soil moisture content,the growth of Tripterygium wilfordii was good when the soil water content was 80%,the chlorophyll content and dry weight and fresh weight were higher,the growth are relatively poor when the soil water content was 20%,and there was significant difference between other treatments.With the increase of water stress,the photosynthetic and transpiration rate of Tripterygium wilfordii gradually reduced,the light response of photosynthetic and transpiration of Tripterygium wilfordii represent the same variation under different soil moisture conditions,that is,with the increase of light intensity,the photosynthetic and transpiration rate all rised up at first and then came down.
Keywords:Tripterygium wilfordiwater stressgrowthlight response
Publication Date:2012-01-01
Online Publishing Date:2026-05-22(First online date of this platform, not the publication date of the document)
Pages:5( 12-15,63 )