1. Telmer, C.A., Simmonds, D.H., and Newcomb, W., Determination of developmental stage to obtain high frequencies of embryogenic microspores in Brassica napus, Physiol. Plant.,84, 417, 1992.
2. Zaki, M.A.M., and Dickinson, H.G., Structural changes during the free divisions of embryos resulting from anther and free microspore culture in Brassica napus, Protoplasma, 156, 149, 1990.
3. Zaki, M.A.M., and Dickinson, H.G., Microspore-derived embryos in Brassica: the significance of division symmetry in pollen mitosis Ito embryogenic development, Sex. Plant Reprod.,4, 48, 1991.
4. Simmonds, D.H., Gervais, C., and Keller, W.A., Embryogenesis from microspores of embryogenic and non-embryogenic lines of Brassica napus, in Proc. 8th International Rapeseed Congress, McGregor, D.I., Ed., Saskatoon, Canada, 1991, 306.
5. Pomeroy, M.K., Kramer, J.K.G., Hunt, D.J., and Keller, W.A., Fatty acid changes during development of zygotic and microspore-derived embryos of Brassica napus, Physiol. Plant., 81, 447, 1991.