In dicotyledonous plant, the first asymmetric zygotic division and subsequent several cell divisions are crucial for......

利用２，４－Ｄ和６－ＢＡ种外源激素对烟草未授粉子房单倍体进行了直接途径和间接途径的诱导，结果表明，２，４－Ｄ能诱导子房通过间接途径形成胚状体；６－ＢＡ浓度为２．２２μｍｏｌ．Ｌ＾－１和４．４４μ......