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Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (32): 57-63.doi: 10.11924/j.issn.1000-6850.casb20190700451

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Comprehensive Appraisal of the Quality of Ornamental Foliage Begonia

  

  • Received:2019-07-18 Revised:2019-10-14 Accepted:2019-09-20 Online:2019-11-19 Published:2019-11-19

Abstract: Pot-culture experiments were conducted to observe 15 indexes of 38 ornamental foliage begonias species and cultivars. The aim of the present study was to establish a comprehensive system for appraising the quality of ornamental foliage begonias, and to offer a theoretical support for selection and application. The weight of 15 factors was quantitatively evaluated by analytic hierarchy process. The results showed that plant shape, variegation color of leaf upper side, glowth vigor and size of leaf variegation represent a significant share, and weight was 0.2210, 0.1368, 0.1041 and 0.0880. By K-Means cluster method, 38 species and cultivars were then clustered into 3 grades: excellent, good, and general,and eventually 17 species and cultivars with excellent comprehensive characters (good shape, bright foliage color and strong glowth vigor) were picked out. The results show that the combination of analytic hierarchy process and cluster method can be used to appraise and classify ornamental foliage begonias. This study will provide a scientific and precise method for reasonable exploitation and application of ornamental foliage begonias germplasm resource.

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