四倍体黄芩D20扦插繁殖研究  

Cuttage propagation of tetraploid Scutellaria baicalensis D20

作　　者：葛慧 王盼 赵鑫 王惠珍 曾翠云 杜弢 GE Hui;WANG Pan;ZHAO Xin;WANG Huizhen;ZENG Cuiyun;DU Tao(School of Pharmacy,Gansu University of Chinese Medicine,Lanzhou,Gansu,730101,China;Hezheng Botanical Garden of Medicinal Plants,Gansu University of Chinese Medicine,Linxia,Gansu,731100,China)

机构地区：[1]甘肃中医药大学药学院,甘肃兰州730101 [2]甘肃中医药大学和政药用植物园,甘肃临夏731100

出　　处：《甘肃中医药大学学报》2021年第6期54-58,共5页Journal of Gansu University of Chinese Medicine

基　　金：甘肃省中药材产业科技攻关项目(CYC12-05);现代农业产业技术体系建设专项资金资助项目(CARS-21)。

摘　　要：目的研究不同处理对四倍体黄芩D20扦插生根的影响,探索促进四倍体黄芩D20扦插繁殖的最佳条件。方法采用单因素完全随机设计试验和大棚套小弓棚育苗盘扦插育苗方法,以四倍体黄芩D20茎梢作为繁殖材料,研究插穗长度、生根粉(ABT1号)质量浓度、遮光度和水分调控对四倍体黄芩D20生根率、平均根数、平均根长和生根指数的影响。结果各试验因素中,生根效果最佳的处理分别为:插穗长度为3~4 cm时,生根率和生根指数分别为(57.7±6.11)%,680.3±120.62;生根粉质量浓度为100 mg/L时,生根率和生根指数分别为(64.7±14.57)%,902.9±472.62;遮光度为25%时,生根率和生根指数分别为(6.3±0.58)%,48.8±14.63;水分调控为60%~<75%时,生根率和生根指数分别为(14.0±4.00)%,96.4±15.23。结论四倍体黄芩D20扦插繁殖时选择分生能力旺盛的茎梢作为插穗,合理控制水分和适当遮阴并给予一定质量浓度的生根粉处理,可有效促进其生根。Objective To study the effects of different treatments on the rootage of cuttage propagation of tetraploid Scutellaria baicalensis D20 and to explore the best conditions for promoting the cuttage propagation thereof.Methods A single factor and complete random design,and the method of raising seedlings by cuttage propagation in nursery tray in greenhouse with a small inner bow shed suspended in a large outer shed were adopted.Using stem tips of tetraploid Scutellaria baicalensis D20 as propagation material,the effects of cuttings length,rooting powder(ABT1)mass concentration,shading degree and moisture regulation and control on rooting percentage,average root number,average root length and rooting index of it were studied.Results Among the experimental factors,the treatment with the best rooting effect was that the rooting rate and rooting index were(57.7±6.11)%and 680.3±120.62,respectively,when the cutting length was 3 to 4 cm,respectively;When the mass concentration of rooting powder was 100 mg/L,the rooting rate and rooting index were(64.7±14.57)%and 902.9±472.62,respectively;When the shading degree was 25%,the rooting rate and rooting index were(6.3±0.58)%and 48.8±14.63,respectively;When the moisture regulation and control was 60%to less than 75%,the rooting rate and rooting index were(14.0±4.00)%and 96.4±15.23,respectively.Conclusion The rooting of tetraploid Scutellaria baicalensis D20 can be effectively promoted by selecting the stem tips with strong meristematic ability as cuttings,reasonably controlling moisture,proper shading and giving a certain mass concentration of rooting powder.

关 键 词：四倍体黄芩D20 扦插繁殖 生根粉 遮光度 水分 

分 类 号：S567.239[农业科学—中草药栽培]