甜高粱的特点之一是具有较高的茎秆产量,较低的子粒产量。而甜高梁子粒产量低的主要原因是子粒小,千粒重低。提高其千粒重,将明显提高其子粒产量。因此改良甜高粱的千粒重成为甜高梁育种的主要目标。甜高梁与粒用高梁杂交,从后代中选择茎秆产量和含糖量高,子粒又较大的个体,对培育粮秆兼用型的甜高粱品种及其优良的亲本材料,丰富遗传基础是十分有益的。 One of the characteristics of sweet sorghum is the higher yield of stalks and the lower yield of grain. The main reason for the low sorghum grain yield is the small grains and the low grain weight. Increasing its 1000-grain weight will significantly increase its grain yield. Therefore, improving 1000-grain weight of sweet sorghum becomes the main goal of sweet sorghum breeding. Sweet sorghum and grain sorghum cross, from the offspring to select the stem yield and high sugar content, grain and larger individuals, to cultivate both sweet sorghum varieties and their excellent parent material, the rich genetic basis is very benefit.