Studies On Effects Of Mineral Nutrition On Leafcolor And Physiological And Biochemical Characteristics Of Loropetalum Chinense Var.rubrum

Loropetalum chinese var.rubrum is an evergreen shrub that belongs to hamamelidaceae and has many desirable landscape characteristics.It products an abundance of attractive pink flowers and colored leaves,and it is fast-growing,to tolerant disease and insects.Nowadays,It is vastly used as potted landscape and gardening plant to beautify our environment.This research used pigment plastid content,anthocyanin content,the physiological and biochemical characters and photosynthesis to exam the relationship between the treatment mineral nutrition elements(Zn,Mn,AL,Fe,Cu,Mg)and the leaf color,and the effects on the growth of loropetalum Chinese var.rubrum.The result can provide some theoretics,for the soilles culture of L.chinese var.vubrum..Now the majour results studied in this paper are abstracted as follows.1.At the first time,we filtrate the six sorts of nutrition liquid which fitted for the soilless culture of L.Chinese.Zn²⁺:1.8985×10^-6mol·L^-1,Mn²⁺: 7.5703×10^-7mol·L^-1,Al³⁺:2.0×10^-8mol·L^-1,Fe²⁺:3.5481×10^-7mol·L^-1,Cu²⁺: 5.2079×10^-7mol·L^-1,Mg²⁺:7.584×10^-6mol·L^-1,and other nutrition Ions is followed as sonneveld's which are combined with one sixth sort ions that its content are mentioned above separately,and which are formed six sorts nutrition liquid.2.The dissimilar treatments ions have the different effects on leaf color of L. Chinese var.rubrum,the impact order:Zn²⁺>Mn²⁺>Al²⁺>Fe²⁺>Cu²⁺>Mg²⁺3.Under the concentration of treatment ions intentioned above.It have higher chloroplast content,Pn,Ci content,the higher activity of SOD,and the Cond, Trmmol,which indicated that L.Chinese var.rubrum is growth much better than other conditions.