摘要
研究不同配方叶面肥对平欧杂种榛嫩枝扦插效果的影响,为提高平欧杂种榛扦插苗成活率及苗木质量提供理论依据。在测定7项扦插效果指标的基础上,采用隶属函数法进行数据标准化,对所测指标进行基于主成分分析的综合评价。结果表明:不同配方的扦插效果指标变异程度各异,其中萌芽率、新稍平均长度和抽梢率差异较大,均达到50%以上,根长、发根数、根粗和生根率差异较小;主成分分析提取出2个特征根>1的主成分,累计方差贡献率达91.44%,能够全面反映扦插效果指标的信息;配方2综合得分最高,抽梢率最高且新稍平均长度最长;配方3次之,根系较长且较为粗壮,同时生根率达到最高;配方1得分最低。综合来看,配方2叶面肥在兼顾根系质量的同时对新梢生长促进最明显,喷施效果最佳。
The effects of different formula foliar fertilizers on the cutting propagation of hybrid hazel（ Corylus heterophylla Fisch×Corylus avellana L.） were studied to provide a theoretical basis for improving the survival rate and seedling quality.Based on the measurements of 7 effective indicators,the data were standardized using subordinate function method,then the measured indicators were comprehensively evaluated by PCA.The results showed that cutting performance metrics varied among the different formulas.There were significant differences among the germination rate,the average length of new shoot,and sprouting rate,all over 50%,whereas slight differences among the root length,root thick,number of roots,and rooting rate. Two principal components with characteristic root 1 was extracted by PCA and their cumulative variance contribution rate reached 91.44%,which could fully reflect the information of the cutting effective indicators.Formula 2# had the highest composite score with the highest shooting rate and the longest average length of new shoot.Formula 3#followed,had a longer and more robust root and the highest rooting rate.Formula 1 had the lowest score.In general,formula 2# foliar fertilizer had the best effect,which not only ensured root quality,but also obviously promoted the growth of new shoot.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2016年第5期920-926,共7页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家"十二五"科技支撑计划项目(2015BAC15B03)~~
关键词
平欧杂种榛
嫩枝扦插
叶面肥
生根性状
主成分
hybrid hazel（Corylus heterophylla Fisch ×Corylus avellana L）
twig cutting
foliar fertilizer
rooting traits
principal component
