2 . all the corresponding parameters of a . sylvestris were similar with c . smyrnioides in procreate period in april . but the parameters of root length, diameter of root, volume of root, leaf biomass, root biomass, total biomass, root mass ratio ( rmr ) and sla had the maximal value in moderate treatment in vegetative period in january 峨?yún)⒌南鄳?yīng)生長參數(shù)在4月生殖生長期與明黨參隨土壤水分的變化趨勢相似;但在1月份的營養(yǎng)生長期,根長、根粗、根體積、葉生物量、根生物量、總生物量、rmr和sla均以中度水分條件最大。