热带亚热带植物学报2025，Vol.33Issue(4)：390-398,9.DOI:10.11926/jtsb.4907
基质和植物生长调节剂对猪血木组培苗、实生苗插穗生根的效应
Effects of Matrix and Plant Growth Regulators on Cutting Rooting from Tissue Culture Seedlings and Seedlings of Euryodendron excelsum
摘要
Abstract
In order to establish an efficient and rapid propagation system for cuttings of Euryodendron excelsum,the effects of substrate type and soaking time of plant growth regulator on rooting of cuttings were studied by using 1-year-old lateral bud and 2-year-old lateral bud of 3-year-old tissue culture seedlings and 1-year-old lateral bud of adult seedlings.The results showed that the rooting mode of cuttings was mixed rooting type,the rooting rate of tissue culture seedlings was significantly higher than that of adult plants.The rooting rate of cuttings treated with indolebutyric acid(IBA)was much higher than that treated with naphthalene acetic acid(NAA)on medium with the volume ratio of vermiculite to perlite for 2:1.The rooting rate and average root length of cutting tissue culture seedlings soaked in 1 500 mg/L IBA for 20 min were the highest,which were 96.67%and 0.97 cm,respectively.The rooting rate of adult cuttings soaked in 2 000 mg/L IBA for 10 s was the highest(34.44%),the average root number was 4.22,and the average root length was 0.53 cm.The rooting rate was the highest(46.67%)in the top 1-3 segments of the 2-year-old lateral branches.So,the tissue culture seedlings as cuttings mother plant had a high success rate,could improve the reproduction efficiency and reduce the production cost.关键词
猪血木/扦插繁殖/组培苗/不定根Key words
Euryodendron excelsum/Cutting propagation/Tissue culture seedling/Adventitious root引用本文复制引用
刘心怡,曾晶珏,吴坤林,房林,吴沙沙,翟俊文,曾宋君..基质和植物生长调节剂对猪血木组培苗、实生苗插穗生根的效应[J].热带亚热带植物学报,2025,33(4):390-398,9.基金项目
广东省重点领域研发计划项目(2022B1111230001,2022B1111040003) （2022B1111230001,2022B1111040003）
林业草原生态保护恢复项目资助 This work was supported by the Program for Key Field Research and Development in Guangdong(Grant No.2022B1111230001,2022B1111040003),and the Program for Forestry Grassland Ecological Protection and Restoration. （Grant No.2022B1111230001,2022B1111040003）
