Micropropagation is used for the mass clonal propagation of elite lines or disease-free planting material.

微繁殖被用于优良品系或无病害种植材料的大规模无性繁殖。

youdao

The invention relates to a planting method for culturing test-tube seedlings by plant tissues, in particular to the mass transplanting technique for tissue cultured seedlings of woody flowers.

本发明涉及到植物组织培养试管苗的栽培方法，具体地是木本花卉组培苗大批量移栽技术。

youdao

For about a century now, tree planting has been the mass-participation activity.

BBC: NEWS | Science/Nature | Rolling back Iceland's big desert