不同光照强度对林下栽培三叶青块根产量及总黄酮含量的影响

摘要

Objective] To improve the root yield per plant and total flavonoids of Tetrastigma hemsleyanum Diels et Gilg.[Method] Effects of light intensity on the root yield and total flavonoids of T.hemsleyanum Diels et Gilg cultivated under the woods in five plots where there was a big difference in light intensity were analyzed.[ Result] The root yield per plant and total flavonoids of T.hemsleyanum Diels et Gilg cultivat-ed under the woods rose with the increase of light intensity, especially the root yield.[Conclusion] It is suggested that T.hemsleyanum Diels et Gilg is planted in the plot where light intensity is above 2 000 lx, and the root yield per plant and total flavonoids of T.hemsleyanum Diels et Gilg in the plot are high.%[目的]提高林下栽培三叶青单株块根产量和总黄酮含量。[方法]选择光照强度差异较大的5个地块，研究不同光照强度对林下栽培三叶青块根产量和总黄酮含量的影响。[结果]林下栽培三叶青随着光照强度的增强，三叶青单株块根产量明显提高，块根中总黄酮含量随着光照强度的增强而增加。[结论]建议种植地光照强度在2000 lx以上，三叶青块根产量和总黄酮含量较高。