4Tang G X, Zhou W J, Li H Z, et al. Medium, explant and genotype factors influencing shoot regeneration in oilseed Brassica spp. [J]. Journal of Agronomy and Crop Science, 2003, 189:351-358.
5Murashige T, Skoog F. A revised medium for rapid growth and bioassays with tobacco tissue cultures [J].Physiologia Plantarum, 1962, 15: 473-497.
6Zhang P, Phansiri S, Puonti-Kaerlas J. Improvement of cassava shoot organogensis by the use of silver nitrate in vitro [J]. Plant Cell, Tissue and Organ Culture, 2001, 67: 47-54.