Report copyright - jyj.jiyuan.gov.cnjyj.jiyuan.gov.cn/.../P020190318525010428433.docx · Web view劈砧木。用刀片沿双子叶内侧方向过轴心向下纵劈1-1.5 cm,过胚轴心,下胚轴外侧不劈开,宽不小于接穗横径。
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