基于观赏价值和种球再利用的郁金香品种综合评价与筛选

Comprehensive evaluation and screening of tulip cultivars based on their ornamental value and reuse of bulbs

以北京地区郁金香花展常用品种为对象,以综合评价郁金香观赏价值和种球更新能力为目标,确立了与植株生长、开花、种球更新相关的10个评价指标,结合层次分析法(AHP法)和灰色关联法建立了一套郁金香品种的综合评价体系。首先通过层次分析法科学地对评价指标权重进行赋值,然后利用灰色关联度法构造"理想品种",再将供试品种与"理想品种"比较并进行分析排序,从58个品种中筛选出17个(约占总数的1/3)具有较高观赏价值且种球更新能力好的优良品种。结果表明:应用AHP和灰色关联分析相结合的方法,可以有效地从观赏特性和种球更新能力两方面对郁金香品种进行综合评价,筛选出既适用于花展同时其更新种球还可以园林再利用的品种,为郁金香花展的种球引进及其园林应用提供参考。

We evaluated the ornamental value and bulb reproduction performance of the tulip cuhivars exhibited at the Tulip Festival in Beijing. on the basis of ten characteristcs relevant to growth, flowering and reproduction. A comprehensive evaluation system of tulip cultivars was established by combining an AHP （analytic hierarchy process） and a grey correlation analysis. We first used the AHP to determine value of the weights of various factors scientifically. Then, the grey correlation analysis was carried out to construct a ＂standard cultivar＂ to which all tested cuhivars were compared, analyzed and sorted. Given the degree of grey correlation, 17 cultivars with both high ornamental value and good bulb reproduction performance were screened from 58 tested cultivars. The results revealed that the approach of combining grey correlation analysis and the AHP can be used effectively to evaluate tulip cultivars from two aspects, i. e. , fornamental characteristics and the ability of bulb reproduction, to screen cultivars suitable for both the Tulip Festival and the reuse of daughter bulbs in landscape. Our study provides references for the introduction of tulip bulbs and their use in landscape application.