TY - J Integr Plant Biol A1 - Wu Yan and Zhou Chang T1 - An Ultrastructural Study on Triggering of Cell Division in Young Pollen Protoplast Culture of Hemerocallis fulva L. Y1 - JF - Journal of Integrative Plant Biology JO - J Integr Plant Biol SP - EP - VL - 34 IS - 1 UR - https://www.jipb.net N1 - ER -