优异的高粱雄性不育系是提高高粱籽粒单位面积产量的关键因素之一。春播晚熟高粱栽培区先后应用的主栽不育系——TX3197A(3A)和TX622A(6A),共同具备籽粒产量的配合力高、杂种优势强、适应性广的突出优点。随着它们在生产中的广泛使用,其自身的弱点也日益突出。例如TX622A感染叶部病害及粒霉病日趋严重,其杂交种易倒伏等。为获 An excellent sorghum male sterile line is one of the key factors to improve grain yield per unit area of ​​sorghum. The main sterile lines (TX3197A (3A) and TX622A (6A)) which have been applied in spring sowing sorghum cultivation area have the outstanding advantages of high combining ability, strong heterosis and wide adaptability. As their widespread use in production, their own weaknesses are also increasingly prominent. For example, the infection of TX622A foliar diseases and grain mold become more serious, its hybrids easily lodging and so on. To get