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杨树属于杨柳科杨属(Populus L.),是我国重要造林树种,广泛用于生态林和用材林建设,播种育苗对于杨树杂交育种具有重要意义,特别是在自然条件下,杂种种子多且易采集,为选育良种奠定了良好的基础。一、播种育苗1.种子的收集根据育种目的确定选择的优树,选择生长健壮无病虫害的优良单株作为收集种子的母树。种子成熟前,经常观察母树结实和成熟情况,待种子成熟
Populus belongs to the genus Populus L. It is an important afforestation species in our country. It is widely used in the construction of ecological forests and timber forests. Seeding and nursery are of great significance for poplar breeding. Especially under natural conditions, Easy to collect, laid a good foundation for breeding varieties. First, planting seedlings 1. Seeds collection According to the purpose of breeding to determine the choice of superior trees, select the growth of robust pests and diseases of the excellent single plant as the mother tree to collect seeds. Before the seeds mature, often observe the strong and mature mother trees until the seeds mature