几种石蒜属花卉观赏性状的灰色评价

Appraising the Ornamental Characteristics of Several Species of Lycoris by Gray-relational Grade

以灰色关联度对14种石蒜属花卉的观赏性状进行了评价.结果表明石蒜(Lycorisradiata)的加权关联度Ri为最大(0 713888),即观赏效果最好,这与实际运用效果相符;其次是安徽石蒜(L.anhuiensis),Ri=0 708429;排在第三位的是长筒石蒜(L.longituba),Ri=0 703032.其他由大到小次序为夏水仙(L.squamigera)、玫瑰石蒜(L.rosea)、陕西石蒜(L.shaanxiensis)、乳白石蒜(L.albiflora)、短蕊石蒜(L.caldwellii)、麦杆黄石蒜(L.straminea)、肉红石蒜(L.incornata)、中国石蒜(L.chinensis)、换锦花(L.sprengeri)、忽地笑(L.aurea)、江苏石蒜(L.houdyshelii).从灰色关联度分析结果看,花形整齐、奇特(雄蕊长于花被片,花被片强烈皱缩反卷者),花色稀有和秋冬出叶的,灰色关联度大.14种石蒜均适合作地被,但以秋冬出叶、花葶较矮的种更为适宜,如石蒜、玫瑰石蒜、麦杆黄石蒜、江苏石蒜等.

The ornamental characteristics of 14 species of Lycoris are valuated by gray-relational grade R\-i.The result shows that the R_i of Lycoris radiata is the biggest,that is to say this species is the best for appreciation.And the followed species are L.anhuiensis,L.longituba,L.squamigera,L.rosea,L.shaanxiensis,L.albiflora,L.caldwellii,L.straminea,L.incornata,L.chinensis,L.sprengeri,L.aurea,L.houdyshelii.All these species valuated here are fit for groundcover,but some of them with special characteristics are more welcome.