十字花科种间或属间的杂种胚,一般在心形期,有的甚至在球形期便解体。在这之前剥取胚或胚珠进行培养,极易损伤胚。如用受粉后不久的子房培养,不仅胚不受损伤,而且比剥胚时的幼角含有更多未解体的胚,从而可获得较多的种子。有的杂交组合,甚至更适于子房培养。Takeshita在白菜×甘蓝中,子房培养得到的种子,比胚珠和胚培养的都多。Matsuzawa认为,以黑芥作母本的组合进行子房培养效果更好。 Cruciferous interspecific or intergeneric hybrid embryos, usually in the heart-shaped period, and some even in the spherical phase will be disintegrated. Prior to this, stripping embryos or ovules for culturing can easily damage the embryos. As with the powder after the ovary culture, not only the embryo is not damaged, and more than when the embryo young angle contains more undifferentiated embryo, which can get more seeds. Some hybrid combinations are even more suitable for ovary culture. Takeshita In cabbage × cabbage, the seeds grown in the ovary were grown more than the ovules and embryos. Matsuzawa believes that the combination of black mustard for ovary culture better.