基质和植物生长调节剂对非洲紫罗兰扦插的影响  

Effects of substrate and plant growth regulator on cutting of Saintpantia ionantha

作　　者：闫海霞 陶大燕 关世凯 周锦业 宋倩 卢家仕 YAN Hai-Xia;TAO Da-yan;GUAN Shi-kai;ZHOU Jin-ye;SONG Qian;LU Jia-shi(Flower Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,China)

机构地区：[1]广西壮族自治区农业科学院花卉研究所,南宁530007

出　　处：《湖北农业科学》2020年第21期99-101,共3页Hubei Agricultural Sciences

基　　金：广西科技基地和人才专项(桂科AD17292017);广西特色作物试验站建设项目(桂TS2016018);广西农业科学院基本科研业务专项资助项目(桂农科2020YM33,桂农科2019M08)。

摘　　要：研究影响非洲紫罗兰(Saintpantia ionantha)扦插成活效果的因素,为今后的扦插生产提供基础。以非洲紫罗兰叶片为材料,进行4种不同基质、3种不同植物生长调节剂种类以及2种植物生长调节剂的4个不同浓度的单因素扦插试验,分析基质、植物生长调节剂种类和浓度对非洲紫罗兰生根率、出芽率以及新芽数的影响,并筛选出最佳的扦插基质、植物生长调节剂浓度。结果表明,不同基质的影响不同,细泥炭、珍珠岩、细河沙体积比为2∶2∶1非洲紫罗兰的生根率、出芽率、新芽数最高,分别为98.00%、25.82%、19.00个,是最佳扦插基质。植物生长调节剂的影响因种类而不同,其中IBA和NAA可显著提高其成活效果。IBA、NAA浓度在100~400 mg/L的范围内对非洲紫罗兰生根率无显著影响,但对出芽率和新芽数均有显著影响,IBA和NAA的扦插繁殖最佳浓度均为200 mg/L。To study the factors that affect the survival of Saintpantia ionantha’s cutting,and to provide the basis for its cutting produc⁃tion in the future.Taking the leaves of Saintpantia ionantha as materials,the single factor cutting experiments of 4 kinds of different substrates,3 kinds of plant growth regulators and 2 kinds of plant growth regulators with different concentrations were carried out to an⁃alyze the effects of substrates,types and concentrations of plant growth regulators on rooting rate,sprouting rate and number of new buds,and to select the best cutting substrates and concentrations of plant growth regulators.The results showed that the rooting rate,sprouting rate and number of new shoots were the highest when the volume ratio of peat,perlite and river sand was 2∶2∶1,which were 98.00%,25.82%and 19.00,respectively.It was the best cutting medium.The effects of different plant growth regulators vary with spe⁃cies,among which IBA and NAA can significantly improve the survival effect.The concentration of IBA and NAA in the range of 100~400 mg/L had no significant effect on the rooting rate,but had significant effect on the sprouting rate and the number of new buds.The best concentration of IBA and NAA in cutting propagation was 200 mg/L.

关 键 词：非洲紫罗兰(Saintpantia ionantha) 基质 植物生长调节剂 扦插 

分 类 号：S681.2[农业科学—观赏园艺]