1973年以来非洲橡胶研究所一直进行着针刺采胶的试验,这种新采胶法是不割去树皮而在经过适当刺激处理的树皮上简便地针刺几下。这项研究是在Tupy所得的试验结果的基础上开始进行的,Tupy的试验证明,在橡皎产量与细胞生物合成所需原料的供应之间存在着密切的相关。在某些情况下,由于常规割胶会破坏输导同化汁液的组织,这 The Rubber Research Institute of Africa since 1973 has been conducting needlepunching tests. The new method is to simply needlessly needling a few barks of bark on a suitably barked tree without cutting the bark. This study was started on the basis of the results of Tupy’s trial, which showed that there is a close correlation between the yield of kojic and the supply of raw materials needed for cell biosynthesis. In some cases, this is because conventional tapping destroys tissue that conducts assimilation juice