73年以来,我所从国内外引入桉树品种三百多种号,由于一些耐寒树种不适应雷州地区干旱炎热的环境条件,大部分种子在圃地不发芽,小部分在圃地死亡或定株不久在林地死亡。现存70多个品种。作者在79年总结了引种情况,初步选出其中十几个在雷州地区生长表现较好的品种。但因分析资料均来自初次试验,栽植株数不一致,有些生长较好的品种栽植株数较少,且植边际一行,资料分析的结果很可能来自边际效应影响,很难说明问 Since the 73rd year, more than 300 kinds of eucalyptus varieties have been introduced from home and abroad. Since some cold-hardy species are not suitable for the hot and humid environmental conditions in Leizhou, most of the seeds are not germinated in the nursery, Shortly after the woodland died. Existing more than 70 varieties. The author summed up the introduction in 79 years, initially selected a dozen of them in Leizhou region to grow better performance varieties. However, the analysis of data from the first trial, the number of plants planted inconsistent, some plants grown better varieties planted less, and the marginal line, the results of data analysis is likely to come from the marginal effect, it is difficult to say