目前，杨树已成为林木组织培养及生物技术育种中研究最多的树种之一。

At present, it has become the mostly researched tree species in tissue culture and biotechnology breeding.

youdao

目前，杨树已成为林木组织培养及生物技术育种中研究最多的树种之一。

At present, it has become the mostly researched tree species in tissue culture and biotechnology breeding.

youdao