植物生长调节剂对杜仲叶杜仲胶含量的影响

目的]研究不同植物生长调节剂对杜仲叶杜仲胶含量的影响。方法]采用4种植物生长调节剂对杜仲树林进行处理,并用碱浸法处理杜仲叶,再用正己烷-丙酮提取法来提取杜仲胶,计算杜仲胶含量。结果]随喷洒次数的增多,不同处理杜仲叶杜仲胶含量增加;4种植物生长调节剂处理的杜仲叶杜仲胶含量从高到低依次为GA3、NAA、6-BA、2,4-D,杜仲胶含量均高于CK。结论]4种浓度的植物生长调节剂都能使杜仲叶杜仲胶含量不同程度提高。从优选角度考虑,生产上可采用GA3300 mg/L进行1次喷洒,来提高杜仲叶中杜仲胶含量。

Effect of Plant Growth Regulators on the Guttapercha Content of Eucommia ulmoides Leaves

Objective]To study the effect of plant growth regulators on the guttapercha content of Eucommia ulmoides leaves.Method]Four plant growth regulators were used to deal with E.ulmoides.E.ulmoides were treated by alkali leaching,and the content of guttapercha was calcu-lated by using hexane-acetone extraction method.Result]The content of guttapercha in E.ulmoides leaves increased with the increase of spra-ying times.The guttapercha content of E.ulmoides leaves treated by four plant growth regulators from high to low was as follows:GA3,NAA,6-BA,2,4-D.The content of guttapercha treated by four plant growth regulators were higher than CK.Conclusion]The four plant growth regula-tors can make the guttapercha in the leaves raised obviously.From the perspective of optimization,GA3300 mg/L can be used for one-time spra-ying to improve the guttapercha content of E.ulmoides leaves.