Evaluation of ornamental value and adaptability of eight varieties of crape myrtle with color leaves

doi:10.3785/j.issn.1008-9209.2019.07.021

Journal of Zhejiang University (Agriculture and Life Sciences)

2020, Vol. 46

Issue (3): 327-333 DOI: 10.3785/j.issn.1008-9209.2019.07.021

Horticulture

Evaluation of ornamental value and adaptability of eight varieties of crape myrtle with color leaves

Ying WANG(

),Yujuan LI(

),Feng TAN,Cong GUO

Jiangsu Riverine Institute of Agricultural Sciences, Nantong 226541, Jiangsu, China

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Abstract

With the analytic hierarchy process (AHP), the ornamental value, ecological adaptability and growth characteristics of eight varieties of crape myrtle with color leaves were evaluated comprehensively, which helping to select out the best varieties adapting to Nantong area in Jiangsu Province. The results showed that the weight value of leaf color is the largest, followed by flower color, which are important indexes to evaluate the ornamental value of crape myrtle. The weight values of overall form and fruit were auxiliary indexes of ornamental evaluation. Resistance to pests and diseases and wet resistance were important indexes to evaluate the adaptability of crape myrtle. Growth rate was also a key factor for successful introduction. Through the comprehensive analysis model, three crape myrtles with color leaves belonged to grade Ⅰ level, including ‘Blush’, ‘Red Hot’ and ‘Crimson Red’, among which ‘Blush’ was especially the best of all.

Key words： crape myrtle with color leaves analytic hierarchy process ornamental value and adaptability evaluation

Received: 02 July 2019 Published: 17 July 2020

CLC:

S 687.9

Corresponding Authors: Yujuan LI E-mail: 466625450@qq.com;381260896@qq.com

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Cite this article:

Ying WANG,Yujuan LI,Feng TAN,Cong GUO. Evaluation of ornamental value and adaptability of eight varieties of crape myrtle with color leaves. Journal of Zhejiang University (Agriculture and Life Sciences), 2020, 46(3): 327-333.

URL:

http://www.zjujournals.com/agr/10.3785/j.issn.1008-9209.2019.07.021 OR http://www.zjujournals.com/agr/Y2020/V46/I3/327

8个彩叶紫薇品种观赏性及适应性评价

运用层次分析法（analytic hierarchy process, AHP）对8个彩叶紫薇品种的观赏性、生态适应性与生长特性进行综合评判，以筛选出适应江苏省南通地区的优良彩叶紫薇品种。结果表明：叶色的权重最大，其次为花色，两者是评价彩叶紫薇观赏性的重要指标；整体形态及果实权重相对较小，是观赏性评价的辅助指标；抗病虫害和耐水湿是评价彩叶紫薇适应性的重要指标；生长速度快慢也是引种能否成功较为关键的因素。通过综合分析模型可知，‘火红’（‘Blush’）、‘赤红’（‘Red Hot’）和‘绯红’（‘Crimson Red’）3个品种的综合评价等级达到Ⅰ级，尤其以‘火红’为佳。

关键词： 彩叶紫薇, 层次分析法, 观赏性与适应性, 评价

Table 1 Evaluation criteria of ornamental value and adaptability in crape myrtle with color leaves

Table 2 Judgment matrix of different levels and consistency test results

Table 3 Ornamental value of crape myrtle with color leaves in evaluation hierarchy model and weight of each factor

Table 4 Weight of adaptability and growth characteristics of each variety

Table 5 Evaluation scores of eight varieties of crape myrtle with color leaves

Fig. 1 Black diamond series ‘Red Hot’

Fig. 2 Black diamond series ‘Blush’

Fig. 3 Black diamond series ‘Best Red’

Fig. 4 Black diamond series ‘Pure White’

Fig. 5 Black diamond series ‘Crimson Red’

Fig. 6 Black diamond series ‘Blush V₂’

Fig. 7 Lagerstroemia fauriei Koehne

Fig. 8 Lagerstroemia indica ‘Pink Velour’


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