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杂交育种是培育杨树优良品种的重要途径之一。二十多年来,我国在杨树有性杂交育种方面获得显著成果。尤其是用引进的欧洲黑杨与原产我国的青杨派树种杂交,选育出了不少速生、抗性强的新品种,在生产中显
Hybrid breeding is one of the important ways to cultivate poplar fine varieties. In the past 20 years, China has obtained remarkable achievements in sexual hybrid breeding of poplar. In particular, with the introduction of the European black poplar and native China’s Populus sent tree hybrids, bred a lot of fast-growing, strong resistance to new varieties in the production of significant