苏州地区大花萱草新品种的筛选与评价

目的]对引进的207个大花萱草(Hemerocallis spp.)品种进行筛选与评价,确定适合苏州地区栽培的大花萱草品种。方法]通过对大花萱草栽培形态特征进行连续观察,将所有引进品种进行逐一筛选;根据测量性状进行分类,对其花色、抗性、植株高度和花期长短等性状进行考评。结果]筛选出适合苏州地区生长的优良品种16个,其中常绿品种5个(sf-2、sf-3、sf-4、sf-6、p-14)、大花品种6个(n-2、n-3、n-4、n-5、p-24、nz-51)、2次开花品种1个(g-6)、长花期品种1个(j-1)、矮化品种1个(nzy-1)、复瓣品种2个(nzy-2、sf-11)。结论]筛选出的16个优良大花萱草品种,适合长三角地区大范围推广,为园林设计提供更多的材料。

Screening and Evaluation of New Cultivars of Hemerocallis spp.in Suzhou Area

Objective] The aim was to screen and evaluate introduced 207 Hemerocallis spp.cultivars,and confirm suitable Hemerocallis spp.cultivars for Suzou Area.Method] All introduced Hemerocallis spp.cultivars were screened one by one by continually observing their morphological characteristics.And all Hemerocallis spp.cultivars were evaluated and classified according to the characteristics of flower color,resistance,plant height and blooming time and so on.Result] The results showed that 16 good Hemerocallis spp.cultivars were suitable for planting in Suzhou Area,of which evergreen cultivars were 5(sf-2,sf-3,sf-4,sf-6 and p-14),big flower diameters cultivars were 6(n-2,n-3,n-4,n-5,p-24 and nz-51),second bloom cultivar was one(g-6),long blooming time cultivar was one(j-1),dwarf cultivar was one(nzy-1),and complex petals cultivars were 2(nzy-2 and sf-11).Conclusion] Screened 16 good Hemerocallis spp.cultivars are suitable for extending in Yangtze River Delta in a large scale,and provides more materials for landscape design.