The Effects of Soil Moisture Content on Panax notoginseng Leaves Growth, Antioxidant Enzyme Activity and the Content of Osmotic Substances
The response of Panax notoginseng to soil moisture content was investigated through studying the growth and physiological effects of its leaves to soil moisture content.Taking three-year old P.notoginseng seedlings as test materials,we studied the growth and physiological differences of its leaves in potting soil under different moisture contents,namely 0.45FC,0.60FC,0.70FC and 0.85FC.The results showed that foliar growth,moisture content,chlorophyll content and GSH content of P.notoginseng leaves growing in 0.60FC and 0.70FC were significantly higher than that of 0.45FC and 0.85FC.Under different treatments,the content of malondialdehyde showed no significant difference.P.notoginseng growing in 0.45FC and 0.85FC owned the significantly higher SOD activity,CAT activity,APX activity,proline content,soluble protein content and soluble sugar content in their leaves than that growing in 0.60FC and 0.70FC.In this study we determined that too high or too low soil moisture content go against to the growth of P.notoginseng and affect the the dry matter accumulation; The leaf of P.notoginseng can adapt to the change of soil moisture content through changing the enzyme activity and content of osmoregulation substance.
NETL
NSTL
万方数据
维普
