印楝引种试验初报

PRELIMINARY REPORT OF NEEM TREE INTRODUCTION AND CULTIVATION IN CHINA

1986年在我国海南省万宁县首次引种印楝(Azadirachta indica A.Juss)的初步结果表明,印楝树适宜在该地种植,在没有采取特殊保护措施的自然条件下能顺利越冬越夏,生长情况良好。育苗三个月即可移植出圃造林。移植两年后可郁闭成林。平均株高可达6米,胸径达9.8厘米。树龄两年即出蕾开花,首次花期在4～5月份。同年8～9月份果实成熟,产生的种子具有正常生活力。据试验期间观察,印楝还具有较强的抗风和耐旱能力,并具有一定的抗寒能力,是值得进行大量推广的速生树种。

This is a report on the first trial of neem(.Azadirachta indica A.Juss)introduction and cultivation in China.The results show that the neem trees could be planted successfully in Wanning County of Hainan Province which is a tropical region.The neem seeds were collected from Lom'e,Togo,Africa.The seedlings grew very well in the nursery in Hainan.After three months the seedlings grew up to 40-50 cm high,then they were transplanted to the forest area.The neemtrees grew very fast after transplantation,Their canopy was formed in two years,when they grew to as high as 6.0 m.with a trunk diameter of 9.76 cm.The first flowerbuds appeared and bloomed when the trees were two years old,but the neem fruits matured four monthes later.The mature seeds collected from the trees could germinate and the second generation have also been cultivated successfully.The neem trees also exhibit the capabilities of wind-resistance,drought-tolerance and cold resistance during the two years of cultivation in this place.