摘 要 ：对硬粒小麦(Triticum durum Desf.)和珍珠栗(Pennisetum glaucum syn.P. americanum)远缘杂交的受精作用和胚胎发育进行了研究。对授粉后的192个硬粒小麦子房进行制片观察，7.81％发生双受精，具胚和胚乳，但胚乳发育往往落后于胚的发育；3.13％只发生了单卵受精，只产生胚而无胚乳；1.04％发生了单极核受精，只产生胚乳而无胚。总受精率为11.98％，成胚率为10.94％。由于胚乳的缺乏或发育异常及败育，最终难以获得有生活力的种子。
Abstract:The fertilization and embryo development in wide crosses of Triticum durum Desf. and Pennisetum glaucum syn. P. americanum were studied. In a sample of 192 florets fixed after pollination, 7. 81% had double fertilization and had embryo and endosperm, but endosperm development was slower than that of the embryos, 3.13% had only embryo and 1.04% had only endosperm. The frequency of fertilization and embryo formation were 11.98% and 10. 94%. Because the endosperms were abnormal, it was very difficult to produce viable mature seeds.