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目前，高粱杂交种株型按叶角大小，可分为平展型和紧凑型杂交种两类，平展型杂交种靠挖掘高配合力的亲本，而达到丰产性，适合于较瘠薄的土地种植；紧凑型杂交种靠提高群体生产力而提高产量，适合于水肥条件较好的地块种植［１］。１９８８年王桂梅［２］和１９９３年赵延明［
At present, the sorghum hybrid plant type can be divided into two types of flattened and compact hybrids according to the leaflet size. The flattened hybrids achieve high yield by digging the parents with high combining ability, which is suitable for the barren land cultivation. Compact hybrids increase yields by increasing group productivity and are suitable for better plots of water and fertilizer [1]. 1988 Wang Guimei [2] and Zhao Yanming 1993 [