Synergistic promotion of gibberellin and cytokinin on direct regeneration of floral buds from in vitro cultures of sepal segments in sinningia speciosa hiern - Ji-Liang Pang; Li-Lin Wang; Jiang-Qin Hu; Tai-He Xiang; Hai-Man Liang (In Vitro Cellular & Developmental Biology - Plant, 2006)