Effect On Physiological Characteristics In Buxus Sinica And Euonymus Japonicus By Watered Greywater

Gray water is the life waste water which is discharged in the place of human habitation. It is the unification of economic benefit, environmental benefit and social benefit.This study takes tap-water as control,to Buxus Sinica and Euonymus japonicus as research material for Gray water test, the choice to soap and bath dew formed as a soap gray water and bath dew gray water for 60 days stress test.The two kinds of plant growth and morphology in different gray water stress were studied; the plant’s chlorophyll content, leaf water content, relative conductivity and photosynthetic parameters,to provide theoretical basis for the use of gray water irrigation.Test results prove that:(1)In terms of growth morphology:Under the gray water stress, two kinds of plants all can grow normally, the height and the ground diameter change is slightly higher than the control, but there is no significant difference between the control group.(2)In terms of chlorophyll content:Under the gray water stress, the chlorophyll content of Buxus Sinica showed a rising trend after the first drop, Euonymus japonicus chlorophyll content was first increased then decreased,and with the control group had no significant difference. Among them, Buxus Sinica’s chlorophyll content had a greater degree of influence.(3)In terms of relative water content:Under the gray water stress, Buxus Sinica and Euonymus japonicus leaf water content was increased at first and then descending trend, and no significant difference with the control group, showed that the gray water to irrigate the Buxus Sinica and Euonymus japonicus on the leaf relative water content had no significant effect.(4)In terms of relative electrical conductivity.Under the gray water stress, Buxus Sinica relative conductivity was first increased and then decreased, Euonymus japonicus relative conductivity values were rising trend after the first drop, but were with the control group no significant difference, The cell membrane integrity of the gray water group was not destroyed that gray water to irrigate Buxus Sinica and Euonymus japonicus on the relative conductivity without obvious effect.(5) In terms of Photosynthetic Characteristics:Under the gray water Sinica and Euonymus japonicus photosynthetic rate, transpiration rate, stomatal conduction degree showed a rising trend after the first drop, intercellular CO2 concentration was increased first and then decreased, water use efficiency decreased, but were with the control group no significant difference, indicate that gray water to irrigate Buxus Sinica and Euonymus japonicus on the photosynthetic characteristic indexes had no significant effect.In summary, gray water irrigation Buxus Sinica and Euonymus japonicus, had no significant effect on their growth.