1971年冬,我站从外地引进高粱恢复系“忻粱52”,并立即带至海南岛进行隔离繁殖。经过生育观察,我们发现有8棵株高、叶色、穗形、壳色等性状一致的优异典型植株,并进行了套袋自交。成熟后分别脱粒带回。第二年5月在我县胡台公社二牤牛大队进行穗行播种,隔离区5分地。当年,各穗行仍然表现生育一致,产种子80斤左右。1973年继续扩 In the winter of 1971, I introduced the sorghum restorer line “Xin Liang 52” from the field and immediately brought it to Hainan Island for isolation and breeding. After fertility observation, we found 8 typical plants with the same traits of plant height, leaf color, spike shape and shell color. After threshing, respectively, brought back. The following year in May in our county Hutai commune Erlang cattle brigade ear planting, isolation zone 5 points. In the same year, all spikes still showed identical fertility, producing about 80 pounds of seeds. In 1973 continue to expand