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通过对不同外植体的研究，发现幼胚下胚轴是理想的外植体材料；２，４Ｄ和ＺＴ是中棉所１２体细胞胚发生的关键植物生长调节物。从愈伤组织诱导到大量再生植株只需４个月左右的时间。
Hypocotyls of young embryos were found to be ideal explants through studies of different explants; 2,4 D and ZT were key plant growth regulators of somatic embryogenesis in Cummings. It takes only about 4 months to induce a large number of regenerated plants from callus.