【摘要】 为丰富天津市观赏木本植物品种,通过引种试栽,比较了9个新品种苗期的生长特性。结果表明:‘光皮大叶榆’年均胸径(3.8 cm)最粗,‘金丝吊蝴蝶’最细(0.4 cm);‘豆梨’年均基径(14.9 cm)最大,‘金丝吊蝴蝶’最小(1.1cm);‘紫叶合欢’年均株高(190.6 cm)最大,‘紫叶紫荆’最小(39.1 cm);‘紫叶合欢’年均冠幅(151.9 cm)最大,‘金丝吊蝴蝶’(10.9 cm)最小。隶属函数综合分析得出,9个观赏木本植物品种的生长状况为‘紫叶合欢’>‘光皮大叶榆’>‘直干性柽柳’>‘豆梨’>‘红叶榆’>‘五色槐’>‘金丝吊蝴蝶’>‘紫叶紫荆,>‘金叶挪威槭’。‘紫叶合欢’‘光皮大叶榆’‘直干性柽柳’‘豆梨’抗逆性最强,在蓟州表现最好。更多还原

【Abstract】 In order to enrich the ornamental woody plant varieties in Tianjin,the growth characteristics of 9 new varieties were compared by seeding and planting.The results showed that the average annual DBH of ’Ulmus pumila L.’(Large leaf,3.8 cm)was the roughest,’Euonymus schensianus Maxim’(0.4 cm) the smallest;the average annual basal diameter of ’Pyrus calleryana Dcne ’(14.9 cm)was the biggest,and ’Euonymus schensianus Maxim’(1.1 cm)the smallest.The highest annual plant height was that of’Albizia julibrissin Durazz(Purple leaf,190.6 cm),and the shortest was that of ’Cercis chinensis Bunge’(Purple leaf,39.1 cm);the crown width of ’Albizia julibrissin Durazz’(151.9 cm) was the biggest,and ’Euonymus schensianus Maxim’(10.9 cm)was the lowest.The growth conditions of 9 ornamental woody plant varieties were as follows:’Albizia julibrissin(Purple leaf)’>’Ulmus pumila(Large blade) ’>’Tamarix chinensis(Straight stem) ’> ’Pyrus calleryana’> ’Ulmuspumila(Red leaf) ’,>’Sophora japonica var.violacea’>’Euonymus schensianus’ > ’Cercis chinensis(Purple leaf) ’>’Acer platanoides(Gold leaf) ’.It was concluded that’Albizia julibrissin(Purple leaf) ’ ’Ulmus pumila’ ’Tamarix chinensis(Straight stem) ’ ’Pyrus calleryana’had the strongest resistance,and the best adaptability in Jizhou.更多还原