Plant type and rice quality of northern Japonica rice and their interrelations are studied based on the experiment of incomplete diallelled cross between 10 CMS lines and 10 restore lines.

• 利用10个不育系与10个恢复系不完全双列杂交试验，对北方杂交粳稻株型、米质及相互关系进行研究，结果如下：1。