关键词: 观赏木本植物, 新品种, 生长特性, 蓟州

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’>‘Ulmus pumila（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.

Key words: ornamental woody plants, new varieties, growth characteristics, Jizhou