TY - Bulletin of Botanical Research A1 - LIU Xue-Mei, YANG Chuan-Ping, GENG Feng T1 - Development of ovule and relation between embryo and endosperm developments of Betula platyphylla Y1 - 2005-09-15 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 322 EP - 326 VL - 25 IS - 3 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2005.03.018 ER -