中国麻业科学2025，Vol.47Issue(1)：45-52,8.
喷施多效唑对高秆花叶型工业大麻农艺性状及品质的影响
Effects of Paclobutrazol Spraying on Agronomic Traits and Quality of High-stalk Industrial Hemp used for Inflorescences and Leaves
摘要
Abstract
To explore the effects of paclobutrazol spraying time and concentration on agronomic traits and quality of high-stalk industrial hemp used for inflorescences and leaves,Yunmaci 1 was used as the experimental material.Two spraying periods(S1:seedling stage,S2:early stage of rapid growth)and six spraying concentrations(C0:0 mg/L,C1:25 mg/L,C2:50 mg/L,C3:100 mg/L,C4:200 mg/L,C5:400 mg/L)were set up.The effects on plant height,stem diameter,effective branch number,inflo-rescences and leaves yield,chlorophyll content and CBD content were analyzed.Paclobutrazol-spraying could reduce plant height and first branch height,increase the number of effective branches,and the effect of treatment on agronomic traits at S1 stage was more significant.Spraying paclobutrazol at S1 stage significantly reduced the chlorophyll content in leaves at the harvest stage,while spraying paclobutrazol(25-200 mg/L)at S2 stage promoted the accumulation of chlorophyll in leaves,and the treatment with high concentration paclobutrazol(400 mg/L)decreased the accumulation of chlorophyll in both S1 and S2 stages.The effect of paclobutrazol-spraying on the content of cannabidiol(CBD)in inflorescences and leaves was consistent with the change trend of chlorophyll,that is,the spray of paclobutrazol in the S1 period reduced the accumulation of CBD,and treatment with the appropriate concentration(25-100 mg/L)at S2 stage was conducive to the accumulation of CBD.Spraying paclobutrazol with appropri-ate concentration(25-100 mg/L)can also increase the yield of inflorescences and leaves.It is sugges-ted that spraying paclobutrazol with appropriate concentration(25-100 mg/L)at the rapid growth peri-od can increase the yield and CBD content of inflorescences and leaves,reduce the plant height and the height of the first branch.关键词
工业大麻/多效唑/农艺性状/花叶产量/CBD含量Key words
industrial hemp(Cannabis sativa L.)/paclobutrazol/agronomic traits/inflorescences and leaves yield/cannabidiol(CBD)content分类
农业科学引用本文复制引用
盖铭璇,郭孟璧,赵德胜,杨于平,张园,字雪靖,吕品,杜光辉,陈璇..喷施多效唑对高秆花叶型工业大麻农艺性状及品质的影响[J].中国麻业科学,2025,47(1):45-52,8.基金项目
财政部和农业农村部:国家麻类产业技术体系育种技术与方法岗位(CARS-16-02) （CARS-16-02）
云南省"兴滇英才支持计划"产业创新人才专项(YFGRC202431) （YFGRC202431）
