通过离子注入Ｆ１代杂交种子，从后代中选育出２个早发生胚水稻品系，开花前１～２ｄ，未经授粉受精，卵细胞能自行分裂成多细胞原胚，发生频率高达２６．８％，用显性紫色稻作父本测交，Ｆ１代出现一定比例母本类型植株。经细胞胚胎学观察，已证实该材料存在二倍体孢子生殖（Ｄｉｐｌｏｓｐｏｒｙ）和无孢子生殖（Ａｐｏｓｐｏｒｙ），同时还存在未受精极核分裂成初生胚乳核的现象。 By ion implantation F1 hybrid seed, two early embryo rice lines were bred from the progenies. One to two days before flowering, without fertilization and fertilization, the egg cells could divide into multicellular proembryo, the frequency of which was up to 26.8% , Dominant purple rice was used as male parent to test the cross, F1 generation appeared a certain percentage of female parent plants. According to the observation of cytogenetics, it has been confirmed that Diplospory and Apospory exist in this material, and the unprotected polar nuclei split into primary endosperm nuclei.