国产兜兰属植物观赏价值评价及其在华南地区的应用前景分析

以植株的生长状况、整株姿态、叶片观赏性、开花性、花形、花色和花朵观赏期为评价指标,利用灰色关联分析,对我国原产的27种兜兰属植物的观赏价值进行了综合评价并分析了它们在华南地区的应用前景。结果表明:多花长瓣型的飘带兜兰与理想种的关联度最高,达到0.7304,是最值得在华南地区栽培的兜兰种类,其次为白旗兜兰。而紫纹兜兰、汉氏兜兰;文山兜兰、格利兜兰、带叶兜兰、亨利兜兰、同色兜兰,它们的关联度系数超过0.6;紫毛兜兰、巨瓣兜兰、红旗兜兰、天伦兜兰、长瓣兜兰、根茎兜兰的关联度均超过0.5;也是值得推广兜兰种类;杏黄兜兰、硬叶兜兰、白花兜兰由于生长状况差、开花性差等原因与理想种的关联度分别只有0.1900、0.1921、0.2917,不适于华南地区栽培;其它9种兜兰的关联度虽然介于0.35~0.50之间,但其中有些种类如虎斑兜兰、麻栗坡兜兰、波瓣兜兰、德氏兜兰等由于具有独特的观赏价值和育种潜力,也是值得在华南地区栽培的兜兰种类。

Evaluation of Ornamental Value of Paphiopedilum Distributed in China and Analysis of Utilization Prospect in South - China

Ornamental value of 27 introduced Paphiopedilum which are all species distributed in China were evaluated in south China by gray - correlation analysis based on the status of plant growth, stance of whole plant,ornamental value of leaf, flowering percentage, flower form, flower color, durative time of flowering. The results showed that P. parishii is the most suitable species used for ornamental in South China because of its highest eorrelation degree （0. 7304） to the ideal species, the second species being P. spicerianum. P. purpuratum, P. hangianum, P. wenshanense, P. gratrixianum, P. hirsutissimum. P. heryanum, P. concolor were also suitable species used for ornamental in South China because their correlation degrees were higher than 0. 60. P. villosum, P. bellatulum, P. charlesworthii, P. tranlienianum, P. dianthum and P. areeanum could be used for ornamental in South China because their correlation degrees were higher than 0. 50. P. armeniacum,P, micranthum,P, emersonii were not suitable for planting in South - China because of their low flowering percent and poor growth status, their correlation degrees were 0. 1900, 0. 1921, 0. 2917. P. tigrinum, P. malipoense, P. insigne and P. delenatii are deserved to be used for ornamental in South - China for their particular ornamental value of flower and potential of cross breeding as parent despite their correlation degrees were less than 0. 50.