云南省主要野生观赏草资源评价

The Evaluation of Wild Ornamental Grass Resources in Yunnan Province

在对云南省野生观赏草资源调查的基础上,以原生境、抗性、植株观赏性、株高、叶色和花序为性状评价指标,利用灰色关联度分析法对162种观赏草进行综合评价分析。结果表明:162种观赏草中有121种与理想种的关联度在0.6以上,这些种都有开发利用的潜力;有39种与理想种的关联度在0.7以上,这些种的综合评价值较高,可考虑直接应用于园林绿化;有8种与理想种的关联度在0.8以上,其中粽叶狗尾草(Setaria palmifolia)、金猫尾(Saccharum fallax)和滇蔗茅(Erianthus longisetosus)与理想种的关联度超过0.9,是理想的观赏草种。

Based on the investigating of wild ornamental grass resources in Yunnan Province,the 162 species were evaluated and analyzed comprehensively by grey-correlation analysis with the characters of habitat,fastness,ornamental value,leaf color and inflorescence.The results showed that the correlation degree with the ideal species of 121 in the 162 ornamental grass was higher than 0.6,these species had the potential to development and utilization;39 species was higher than 0.7 in the correlation degree with the ideal species,these species had higher comprehensive evaluation,they can be utilization in landscaping directly;there were 8 species was higher than 0.8 in the correlation degree with the ideal species;Setaria palmifolia,Saccharum fallax and Erianthus longisetosus can be regarded as ideal ornamental grass,for which had the correlation degree with the ideal species was higher than 0.9.