| 摘要: |
| [目的]通过对陕西省观赏草资源的综合性状评价,为其合理的开发利用提供参考.[方法]在对陕西省观赏草资源进行初步调查和研究的基础上,利用灰色关联度分析法,对50种观赏草资源的生境、抗性、植株观赏性、株高、叶色和花序等6个性状进行了综合评价.[结果]综合评价比较高的观赏草品种有芦竹(Arund donax)、荻(Miscanthus sacchari ftorus)、小香蒲(Typha minima)和地肤(Kochia scoparia)等,其与理想种的关联度分别为0.791 7,0.773 0,0.796 4和0.822 2;32种禾本科观赏草中有88%具有耐旱性,且植株观赏性关联系数低于0.6的仅有7种;50种观赏草中有38种与理想种的关联度在0.6以上.[结论]芦竹(Arund donax)、荻(Miscanthus sacchari ftorus)、小香蒲(Typha minima)和地肤(Kochia scoparia)等可直接用于园林绿化美化;50种观赏草中多数具有开发潜力,可从禾本科观赏草中开发出节水耐旱的草种. |
| 关键词: 观赏草 性状评价 陕西省 |
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| Main resources of ornamental grasses and its evaluation in Shaanxi Province |
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| Abstract: |
| 【Objective】 The study evaluated wild resources of ornamental grasses available in Shaanxi Province and provided some references about their development.【Method】 50 ornamental grasses resources were evaluated using gray-correlation analysis based on the primary investigation and research of resources of wild ornamental grasses in Shaanxi Province, 6 evaluated characters of the ornamental grasses included habitat, fastness, ornamental value, height, color of leaf and inflorescence.【Result】 Arund donax,Miscanthus sacchariflorus,Typha minima,Kochia scoparia,etc had better ornamental effects and their correlation degree with the ideal species were 0.791 7，0.773 0，0.796 4 and 0.822 2;88% of 32 gramineous ornamental grasses could resist drought,and the correlation degree of only 7 species were lower than 0.6;The correlation degree with ideal species of 38 in involved ornamental grasses of 50 were higher than 0.6.【Conclusion】 Arund donax,Miscanthus sacchariflorus,Typha minima,Kochia scoparia,etc can be used for landscaping directly;Most of 50 ornamental grasses have potential value,and drought-resistant ornamental plants can be developed from gramineous ornamental grasses. |
| Key words: ornamental grass character evaluation Shaanxi Province |
