一、前言研究外界环境条件与植物化学成分之间的关系,对于那些以生物合成产物(如生物碱、挥发油等)提供人类产品的植物来说,是一个非常重要的问题。植物体中有效成分与外界环境条件之间的关系,是合理制定上述植物的栽培措施及种植区划的重要依据。各国科学工作者,曾对含于烟草(Nicotiana sp.)、金鸡纳(Cinchona succirabra)、欧洲莨 I. INTRODUCTION The study of the relationship between external environmental conditions and phytochemicals is a very important issue for plants that provide human products with biosynthetic products (such as alkaloids, volatile oils, etc.). The relationship between the active ingredients in the plant body and the external environmental conditions is an important basis for the rational formulation of cultivation measures and planting zonation of the above plants. Scientists from various countries used to study the effects of Nicotiana sp., Cinchona succirabra,