遮光对桃儿七植株生长的影响  

Effect of Shading on the Growth of Sinopodophyllum hexandrum

作　　者：孟瑾瑾 杜弢 刘东 久西加 徐晓娟 MENG Jin-jin;DU Tao;LIU Dong;JIU Xi-jia;XU Xiao-juan(College of Pharmacy,Gansu University of Chinese Medicine,Lanzhou 730000,China;Northwest Collaborative Innovation Center for Traditional Chinese Medicine,Lanzhou 730000,China)

机构地区：[1]甘肃中医药大学药学院,甘肃兰州730000 [2]西北中藏药协同创新中心,甘肃兰州730000

出　　处：《中药材》2023年第10期2388-2393,共6页Journal of Chinese Medicinal Materials

基　　金：农业农村部国家中药材产业技术体系建设专项(CARS-21)。

摘　　要：目的:探索适宜桃儿七人工栽培的最佳遮光条件。方法:以一、二、三年生桃儿七植株为试验材料,设置30%、50%、70%遮光处理,以不遮光为对照。结果:一年生桃儿七植株移栽成活率为30%~40%,二年生桃儿七植株移栽成活率为50%~70%,三年生桃儿七植株移栽成活率为70%~90%;综合株高、株幅、茎基部粗、根长、根粗、须根数、根鲜重、折干率等农艺性状的结果表明,6至8月是桃儿七植株根部快速生长期,30%和50%遮光率有利于桃儿七植株根部的营养生长。遮光处理的单根鲜重增加量均大于对照,增加量由大到小为50%遮光率>30%遮光率>70%遮光率>CK;桃儿七根折干率随生长时间的延长,整体呈下降-上升-下降的趋势。结论:30%~50%遮光能够提高桃儿七植株移栽成活率,且有利于其生长,建议桃儿七人工栽培时可选择此遮光率,并于植株地上部分枯萎前进行采收。Objective:To explore the best shading conditions suitable for the artificial cultivation of Sinopodophyllum hexandrum.Methods:The first,second and third year Sinopodophyllum hexandrum were used as the test material,and 30%,50%and 70%shading treatments were set,with no shading as the control.Results:The survival rate of one-year,two-year and three-year Sinopodophyllum hexandrum was 30%to 40%,50%to 70%and 70%to 90%,respectively.Agronomic characteristics such as plant height,plant width,stem base thickness,root length,root thickness,number of fibrous roots,root fresh weight and drying rate results showed that the rapid growth period of the roots of Sinopodophyllum hexandrum was from June to August,and the shading rate of 30%and 50%was beneficial to the vegetive growth of the roots of Sinopodophyllum hexandrum.The increase of fresh weight of single root of shading treatment was greater than that of control,and the increase was 50%shading rate>30%shading rate>70%shading rate>CK from large to small.The drying rate of Sinopodophyllum hexandrum roots showed a trend of declining-rising-declining with the extenson of growth time.Conclusion:30%to 50%shading rate can improve the survival rate of transplanting Sinopodophyllum hexandrum,and is beneficial to their growth.It is suggested that this light shading rate should be selected when Sinopodophyllum hexandrum is artificially cultivated,and the aboveground part of the plants should be harvested before wilting.

关 键 词：桃儿七 遮光 农艺性状 根重 

分 类 号：R282.2[医药卫生—中药学]