Effects of Different Copper Reagents on the Color-keeping of Pressed Flower(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effects of Different Copper Reagents on the Color-keeping of Pressed Flower

Author(s):: BAO Wenmin; (Shanghai Vocational College of Agriculture and Forestry,Shanghai College of Agriculture,Shanghai 201600)

Abstract:: Leaves of six species (nandina，peony，trefoil，pteridophyte，camellia sasanqua，laurel) were taken as experimental materials.The leaves were soaked in heated copper sulfate solutions with 1%，2.5%，5%，saturated concentrations and acetic copper solutions with 1∶4 and 2∶3 concentrations progressively.The leaves of trefoil and pteridophyte，which didn’t appear so good in heated solutions，were treated again with cold solutions，and the leaves of camellia sasanqua and laurel，which were failed in the former treatments，were injured artificially and treated with the same solutions again.The effects of different copper reagents on the color-keeping of pressed flower were studied.The results showed that the ideal method for color-keeping of the leaves of nandina and peony was firstly soaking in heated solution of 5% CuSO4 or Cu(CH3COO)2 and then drying with microwave;the leaves of trefoil and pteridophyte were easily softened and shrunk in the heated solution，so soaking in cold solution and drying with thermostat oven was the best method for these leaves;the leaves of camellia sasanqua and laurel，the surfaces of which were covered with wax，were difficult to be permeated by color-preserving solution.So for these kinds of leaves，the best method was treated by the combination of rubbing the back of the leaves and soaking in heated 5% CuSO4 solution.

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Last Update: 2017-01-03