作　　者： ; ;

机构地区： 吉林大学生物与农业工程学院地面机械仿生技术教育部重点实验室

出　　处： 《生态环境》 2006年第5期1101-1105,共5页

摘　　要： 光因子是直接影响植物光合作用的主导因子。人参(PanaxginsengC.A.Mey.)作为典型的阴性植物,对光环境的要求十分严格。文章从保护野山参物种资源及光环境对人参生长发育的重要作用的角度,介绍了人参生长光环境的研究现状:研究时期集中于20世纪80、90年代,以指导园参栽培为目的,围绕可见光区的光强和光质特征展开,以光环境静态调查及光强日动态、光质颜色对人参生理影响为主要研究内容。文中分析了国内外对于人参适宜光照的研究结果存在较大差异的原因可能是人参种质、不同生长阶段的光合能力及光分布空间变化给人参光合作用造成的影响。总结了已有研究的结果,例如,①参棚透光率为25%时,光照强度达到饱和光强度,人参光合速率最高;②浅绿膜人参生育健壮,光合作用强度高,干物质积累快,有利于参根增重。2000年以后,随着林下栽参的兴起,原有研究成果不足以满足目前科学种植的需要,国外已经出现林下分光谱辐射对人参根部皂甙积累影响数量关系的研究,而国内针对林下参生长光环境的研究仍停留在上世纪90年代针对可见光区光强变化的水平上。文章最后指出,现有研究成果在科学指导林下栽参的选址及现代化管理方面存在不足,通过学科交叉与融合、建立合理的人参生长光环境动态模型是未来人参生长光环境研究的发展趋势。 Light as a dominant factor affected photosynthesis directly. Panax ginseng C. A. Mey. was a typical shade plant, so it had low tolerance for light. In this paper, the current research on ginseng growing light environment was mentioned. These studies, which aimed at planting ginseng in field and circled round light intensity and light quality in photosynthetically active radiation band, were dealt with in 1980s and 1990s mostly. Different befitting light for ginseng photosynthesis in these studies were resulted from genetic diversity of ginseng, variations of photosynthesis in different growing status and spatial distribution of light, however, some important conclusions were drawn included light saturation point appeared when light transmission rate of shed was 25% and else. Aiter 2000, the existent results weren＇t satisfied with current plant with the development of planting ginseng under forests. Although the relation between radiation spectrum and accumulation of root ginsenosides had been reported in Canada, light intensity in photosynthetically active radiation band was only studied in our country. Based on some problems lied in existed researches, the dynamic models which can simulate growth light environment of ginseng was the development trend in the future.

关 键 词： 人参 光环境 研究现状 发展趋势

领　　域： [生物学]