双稠哌啶类生物碱注干剂影响杨树胸径生长的林间试验

以苦豆草中的双稠哌啶类生物碱为主要成分。开发出了促进杨树径向生长的注干剂，附以复合植物源氨基酸，含氮、磷、钾的无机盐，植物激素类有机化合物，铜、锰、锌、钴、钼、硼、铁等微量元素，在山东、江苏和安徽的不同地点对不同树龄、不同品种的杨树进行林间试验。结果表明，在试验期间，杨树胸径净生长量较对照增加了63．8％～223％。给受试树注射较注干剂用量高100倍的苦豆草总生物碱的试验结果表明，处理杨树的高生长没有受到显影响，胸径生长得到促进；同时，给受试树分别注射该注干剂和合成的氧化乐果的试验结果表明，施用注干剂后其注入孔伤口愈合率不仅高于氧化乐果处理组，而且也优于对照组。用不同配方注干剂分别做喷施和注干对比试验的结果表明，不同配方注干剂促进杨树胸径生长的效果有差异，但注干施药方式的效果均较喷施的效果要好。

Tests of Tree Trunk Injection Formulations Containing Mainly Quino-lizidine Alkaloids on Breast Diameter Growth in Poplar Trees

After our discovery of promoting growth effects of quinolizidine alkaloids from Sophora alopecuroides in poplar trees,the tree trunk injection formulations containing mainly the quinolizidine alkaloids from S.alopecuroides promoting breast diameter growth in poplar trees have been developed.The formulations contain also amino acids from plants,mineral salts like N,P,K salts,plant hormones,microelements like Cu,Mg,Zn,Co,Mo,B,Fe et cetera,for which the national invention patent has been applied.In Shandong,Jiangsu and Anhui provinces the trunk injection formulations were tested on several tree ages of popular varieties in poplar forests,and the net breast diameter growth was 63.8% to 223% higher than that of control in a period of about two months in summer and fall.Tests of dosage of total alkaloids of S.alopecuroides in one hundred times more than that in the injection formulation shown that the height growth of treated trees was not affected,the breast diameter growth of the treated tree was significantly increased.The results indicated that within the testing dosage the alkaloids had no toxicity on poplar tree.The tests of injecting the alkaloid formulation and synthetic pesticide,omethoate respectively shown that the recovery rate of the injected holes in the alkaloid formulation group was significantly greater than that in the omethoate group and also that in the control group.The results of tests of application methods with the trunk injection formulations shown that though differences in effects for the formulations in promoting breast diameter growth existed,effects of promoting breast diameter growth in injecting method were always better than that of spraying.