摘要
【目的】优化多肉植物康平寿(Haworthia emelyae)叶插繁殖技术,为其叶插种苗繁殖和推广种植提供科学依据。【方法】测定不同土壤水含率(A)、植物激素(B)和扦插基质配比(C)处理康平寿的叶插存活率、出芽率、出芽数、生根率、生根数及总根长等指标,采用L_9(3~4)正交试验设计筛选适宜康平寿叶插繁殖的土壤水含率、植物激素和扦插基质配比最优水平组合。【结果】不同植物激素处理康平寿的叶插存活率差异不显著(P>0.05,下同),但在生根率、出芽率、出芽数、生根数间和总根长方面存在显著(P<0.05,下同)或极显著(P<0.01)差异;土壤水含率和扦插基质配比对各生根和出芽指标均无显著影响。出芽率、出芽数和总根长受各因素影响的主次顺序均为B>C>A,存活率和生根数受各因素影响的主次顺序均为A>B>C,生根率受各因素影响的主次顺序为B>A>C。存活率、出芽率和出芽数、生根率和生根数及总根长的最优水平组合分别为A_1B_2C_3、A_2B_1C_3、A_1B_1C_1和A_1B_1C_3。综合指数分析结果表明,各因素对综合指数影响效应的主次顺序为B>C>A,综合指数的最优水平组合为A_1B_1C_3。【结论】影响康平寿扦插繁殖效果的试验因素排序为植物激素>扦插基质配比>土壤水含率;0～10%土壤水含率、25.0 mg/L NAA和扦插基质配比2∶3∶0(腐叶土:蛭石:泥炭土)是康平寿叶插繁殖的最优水平组合。
【Objective】The leaf insertion and propagation technology of succulent plant Haworthia emelyae was optimized to provide scientific basis for the leaf-cutting seedlings propagation and promotion of the plant.【Method】Determination of H.emelyae leaf cutting survival rate,germination rate,germination number,rooting rate,number of roots and total root length treated by different soil water contents(A),different plant hormone(B)treatments,and different cutting matrix ratios(C)were conducted.L9(34)orthogonal test design was used to analyze and screen the optimal level combinations of soil water content,plant hormone and cutting matrix for H.emelyae leaf cutting.【Result】There was no significant difference in the survival rate of H.emelyae leaf inserted in different plant hormone treatments(P>0.05,the same below),but there were significant difference(P<0.05,the same below)or extremely significant difference(P<0.01)in rooting rate,germination rate,germination number,number of roots,and total root length.Soil moisture content and cutting matrix had no significant effects on the rooting indexes and budding indexes.The germination rate,germination number and total root length were affected by the same experimental factors,the rank was B>C>A.The survival rate and number of roots were affected by the same experimental factors,the rank was A>B>C.The influence on the rooting rate affected by each experimental factor was B>A>C.The optimal level combinations of survival rate,germination rate and germination number,rooting rate and rooting number,and total root length were A1B2C3,A2B1C3,A1B1C1,and A1B1C3,respectively.Comprehensive indexes analysis indicated that,the influence of each factor on comprehensive indexes presented B>C>A,the optimal level combination of comprehensive index was A1B1C3.【Conclusion】The experimental factors affecting the propagation effect of succulent plant H.emelyae cuttings are ranked as plant hormone>cutting matrix ratio>soil moisture content.The optimal level combination for H.emelyae leaf cutting is 0-10%of soil moisture content,25.0 mg/L NAA treatment and erishable soil∶vermiculite∶peat soil ratio 2∶3∶0.
作者
韦明金
郭松
李在留
李小妹
吴芳兰
WEI Ming-jin;GUO Song;LI Zai-liu;LI Xiao-mei;WU Fang-lan(College of Forestry,Guangxi University,Nanning 530004,China)
出处
《南方农业学报》
CAS
CSCD
北大核心
2019年第2期350-356,共7页
Journal of Southern Agriculture
基金
国家自然科学基金项目(31560200)
广西自治区级大学生创新创业训练计划项目(201710593285)
关键词
康平寿
叶插繁殖
正交试验
综合指数
Haworthia emelyae
leaf cutting propagation
orthogonal test
comprehensive index
