昆明树木园的珍稀濒危植物迁地栽培保护

本文论述了昆明树木园对２８科７１种国家级珍稀濒危植物的迁地栽培保护情况，以及对其中的６２种进行的生长量、物候、适应性等的初步观测结果。目前，昆明树木园已迁地栽培一级保护植物２２种，二级保护植物４８种，濒危植物１４种，渐危植物３０种，稀有植物２２种。其中，长势好、抗性强的有２２种；长势中、抗性较强的有２２种；长势差，抗性弱的有１６种。年平均高生长量达１ｍ以上的树种有１种，５０ｃｍ以上的有３种，２５ｃｍ以上的有２４种。并有１６种开花，１２种结实。

Cultivation of Rare Migrant Plants in Kunming Arboretum

The cultivation condition of national 71 species of grade rare plants on the verge of extinction those were migrated to Kunming arboretum and the results of preliminary observation on increment, phenophse, adaptive faculty of 62 species were reported as well. Till now, 22, 48, 14, 30, 22 species of first-class protective plants, second-class protective plants, plants on the verge of extinction, on the verge of gradual extinction were migrated to protect in Kunming arboretum. The cultivation condition are 22 species with good growth vigour and strong resistance, 22 species with moderate growth vigour and strong resistance, 16 species with weak growth vigour and weak resistance To annual average increment of tree height, that of 1species is higher than 1m, that of 3 species are higher than 50cm,and that of 24 species are higher than 25cm, 16 species of them have come into blossom and 12 species of them have borne fruits.