【摘要】 利用引种成功的杨树优良品种(鲁山杨、圣山杨、欧美46杨)以及我省小叶杨开展杂交试验,并完成早期选择,苗期测试结果表明:各组合子代之间在苗高、地径、抗病性、侧枝数和节间距等性状方面有显著差异。通过综合选择,初步选择出综合性状表现较好的25个无性系,为进一步营建试验林选择出速生、优质、我省具有完全知识产权的杨树新品种奠定了基础。更多还原

【Abstract】 New superior varieties of Lushan,shengshan,Oumei 46and small leaves poplar L.is adopted by hybridization and early selection.The test results in seedling stage show that there are significant deferences in seedling height diameter、disease resistance 、lateral branchs interodal、distance and etc.Based on synthetic selection,25 clones with superior characters is selected.This lay a foundation further selection new superior varieties of poplar L..更多还原