本试验研究了高粱同源四倍体与约翰逊草远缘杂交的结实性及其后代表现。结果表明 ,四倍体高粱与约翰逊草正、反交均能结实 ,而且后代性状遗传较稳定 ,具有强大的杂种优势 ,是一种很有希望的饲料作物 This experiment studied the sorghum tetraploid autotetraploid hybrids and John Johnson grass and its offspring performance. The results showed that both tetraploid sorghum and Johnson grass could be both positive and negative, and the progeny traits were stable and had strong heterosis, which was a promising feed crop