25个锦带花属品种园林应用价值的综合评价

Comprehensive Evaluation of Garden Application Value of 25 Varieties in Weigela

以25个锦带花属品种为实验材料,通过测定叶色、花量、花色、花径、花冠筒长、单花期、生长势和适应性8个与园林应用价值相关的指标,采用5分制的评分标准进行打分,并使用主成分分析法和聚类分析法对数据进行了分析。分析结果显示,通过方差分解,提取了叶色、花量、花色3个主成分,方差贡献率分别为35.187%、21.853%、15.031%,前3个主成分的累计贡献率达72.071%。聚类结果显示,在平方欧氏距离为9时,25个锦带花属品种可以分为3类,第一类为卢比夫等8个品种,第二类为斯泰涅里等10个品种,第三类为福利斯紫等7个品种。研究表明,根据各指标的权重,在园林中种植锦带花属植物时,可优先选择生长势强、花径大、花冠筒长和花量大的品种,筛选出了宝石红、奥运会、布里斯托尔红宝石、半边月、卢比夫、博斯库普荣耀、伊娃·拉什克和斯泰里亚卡这8个优质品种,认为这8个品种在园林中可以推广应用。

The 25 varieties in Weigela Thunbas were taken as experimental materials,and eight indexes related to garden application value were measured,including leaf color,flower-output,flower color,flower diameter,corolla tube length,single flower period,growth potential and adaptability,and scored according to the scoring standard of 5-point system.The data were analyzed by principal component analysis and cluster analysis.The results showed that through analysis of variance,three principal components were extracted including leaf color,flower output and flower color.The variance contribution rates were 35.187%,21.853%and 15.031%,respectively.The cumulative contribution rate of the first three principal components was 72.071%.The clustering results showed that when the Square Euclidean distance was 9,the 25 varieties could be divided into three categories.The first category was 8 varieties such as‘Rubivif Courtavif’.The second category was‘Stelznieri’and other 10 varieties.The third category was‘Foliis Purpureis’and other 7 varieties.According to the weight of each index,when planting Weigela in the garden,the varieties with strong growth potential,large flower diameter,long corolla tube and large flowers output can be preferentially selected.The established comprehensive evaluation system selects eight high-quality varieties including‘Bristol Ruby’,‘Olympiade’,‘Bristol Ruby’,‘var·sinica’,‘Rubivif Courtavif’,‘Boskoop Glory’,‘Eva Rathke’and‘Styriaca’,which can be popularized and applied in gardens.