基于层次–灰色关联度分析法的红掌杂交F1代重要观赏性状综合评价

Comprehensive Evaluation of Important Ornamental Traits in F1 Generation of Anthurium Hybrid Combinations Based on Hierarchical-Gray Correlation Analysis Method

摘要: 为快速选育红掌新品种，建立红掌杂交组合F1代重要观赏性状综合评价体系。从不同红掌杂交组合中初步筛选20个F1代单株，在盛花期观测统计其主要观赏性状，最终确定19个影响红掌观赏特性的评价指标；采用层次分析法(AHP)与灰色关联度分析法(GRA)结合的“层次–灰色关联度分析法”构建评价体系，通过AHP计算得出权重排名前5的指标为花苞数目(0.1514)、植株大小(0.1460)、花苞颜色(0.1449)、花苞面积(0.1318)、株型(0.0803)；基于上述权重，利用GRA计算20个F1代单株与“理想品种”的加权关联度，并划分为3个等级。结果显示，X5、X7、X9、X17、X20共5个单株为I等级(r ≥ 0.750)，综合性状优良，有望培育为新品种。

Abstract: To rapidly breed new Anthurium varieties, this study established a comprehensive evaluation system for important ornamental traits of F1 generation from Anthurium hybrid combinations. Twenty F1 generation individuals were initially selected from different hybrid combinations, and their key ornamental traits were observed and statistically analyzed during the full flowering period. Finally, 19 evaluation indicators affecting the ornamental characteristics of Anthurium were determined. A “hierarchical-gray correlation analysis method” combining Analytic Hierarchy Process (AHP) and Gray Correlation Analysis (GRA) was used to construct the evaluation system. Through AHP, the top 5 indicators by weight were determined as spathe number (0.1514), plant size (0.1460), spathe color (0.1449), spathe area (0.1318), and plant type (0.0803). Based on the above weights, GRA was used to calculate the weighted correlation degree between 20 F1 individuals and the “ideal variety”, which were divided into 3 grades. The results showed that 5 individuals (X5, X7, X9, X17, X20) belonged to Grade I (r ≥ 0.750) with excellent comprehensive traits, which are expected to be developed into new varieties.