高粱品种对养分胁迫的耐瘠性是由株高基因和熟性基因控制的。大部分单隐性株高基因控制的品种比 2个或 3个隐性株高基因控制的品种耐瘠性差 ,自我调节能力不佳 ,最终不能形成产量。熟性基因 1位点为隐性基因ma控制的品种 ,适应性强 ,生育期短 ,耐瘠水平高 ;而 1位点是显性基因Ma控制的品种 ,适应性差 ,生育期长 ,耐瘠力不高。 The barren resistance of sorghum cultivars to nutrient stress is controlled by both plant height and maturity genes. Most single recessive plant height gene control varieties than 2 or 3 recessive plant height gene control varieties poor barren resistance, poor self-regulation, and ultimately can not form the yield. The locus 1 of the mature gene is a species controlled by the recessive gene ma, which has strong adaptability, short growth period and high barren level. The locus 1 is a dominant Ma control variety with poor adaptability, long growth period and resistance to infertility Not high power.