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对“北京早红”番茄（Lycopersicum escu- lentum（×秘鲁番茄（L.peruvianum）PI 12865~7中的8号株系杂交后种子不能正常发育的观察结果表明:杂种胚败育是由于胚乳细胞发育缓慢和稀少以及珠被绒毡层细胞的增殖。
Observations on the inability of the seeds to develop normally after cross breeding on the “Lycopersicum escu lentum” (L. peruvianum PI 12865-7) showed that the embryo abortion is caused by endosperm cells Slowly developing and sparsely populated as well as the proliferation of bead tapetal cells.