全世界高粱生产中直接用于人类食用要占总产量的55～70％(Miller and Mann,1988),这意味着在广大面积上生产的高粱必须具有良好的营养品质。高粱曾作为一大主栽作物在我国的谷物生产中占有重要地位。1952年其种植面积达14070万亩,然而在其后的30年中却持续缩减了70％以上(张文毅,1986)。这一变化的主要原因之一便是高粱籽粒的营养品质 The direct use of human sorghum for human consumption in the world accounts for 55-70% of the total production (Miller and Mann, 1988), which means that sorghum produced over a broad area must have good nutritional qualities. As a main crop, sorghum occupies an important position in cereal production in our country. Its planted area was 140.7 million mu in 1952, but it continued to decrease by more than 70% in the following 30 years (Zhang Wenyi, 1986). One of the main reasons for this change is the nutritional quality of sorghum grains