[Effect of water stress on growth and accumulation of active components of Isatis indigotica].

Objective: To study the effect of water stress on the growth and accumulation of active components of Isatis indigotica.

Method: By pot culture experiment,the characteristic indexes of water requirement, chlorophyll content, transpiration rate, photosynthesis, biomass and effective ingredient indirubin were studied under normal and water stress conditions, respectively.

Result: With the increase of the extent and duration of water stress, the quantity of water requirement, chlorophyll content, respiration rate, photosynthesis and biomass of I.