Establishment of Synthetic Assessing System for the Quality of Spray Cut Chrysanthemum

【Objective】The present study was to establish a synthetic system for assessing the quality of spray cut chrysanthemum,and to offer technological support for selecting,introducing,and cross breeding of spray cut chrysanthemum.【Method】Field experiments were conducted to observe and count quality factors of 160 varieties of spray cut chrysanthemum in 2009 and 2010.A synthetic assessing system was established by means of expert consultation,analytic hiberarchy process and K-Means cluster method.【Result】The factors affecting the quality of spray cut chrysanthemum were analyzed,and 11 factors were selected.The weight of the 11 factors was quantitatively evaluated by analytic hierarchy process.Plant character,flower color and branch length had the most important effect,and weight was 0.228,0.150,and 0.132,respectively.One hundred and sixty varieties of spray cut chrysanthemum were then clustered into 4 grades by K-Means cluster method.There were 41 varieties graded excellent,71 graded good,35 graded moderate and 13 graded poor,the occupancy was 25.63%,44.38%,21.88% and 8.13%,respectively.【Conclusion】The evaluation result was consistent with production practice,and the system constructed by adopting expert consultation,analytic hiberarchy process and cluster method can be used to evaluate and classify for spray cut chrysanthemum varieties.