【摘 要】
：
美国高粱不育系TX622A于1979年8月引入我国。经各地几年试种,表现株型紧凑,分蘖力强,株高1.5米左右,穗长30厘米左右,长纺锤形,中紧,红壳白粒,着壳率低。该不育系具有一般配
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美国高粱不育系TX622A于1979年8月引入我国。经各地几年试种,表现株型紧凑,分蘖力强,株高1.5米左右,穗长30厘米左右,长纺锤形,中紧,红壳白粒,着壳率低。该不育系具有一般配合力高、育性稳定、小花败育极轻、高抗丝黑穗病、灌浆速度快、穗大粒多、制种产量高、品质好等特性。籽粒粗蛋白含量10%以上,赖氨酸0.3%,单宁含量在0.2%以下。近年来,各地高粱育种者利用TX622A配制了不少杂交组合,有的已经在生产上推广应用。现着重介绍其中几个如下。
American sorghum CMS line TX622A was introduced to China in August 1979. After several years of trial planting, the performance of compact plant type, strong tillering ability, plant height of about 1.5 meters, spike length of about 30 cm, long spindle shape, tight, red shell white tablets, shell rate is low. The CMS has the characteristics of high general combining ability, stable fertility, minimal abortion of flowers, high resistance to head smut, fast filling speed, large spikelets, high seed yield and good quality. Crude protein content of more than 10%, lysine 0.3%, tannin content below 0.2%. In recent years, sorghum breeders around the use of TX622A prepared a lot of hybrid combinations, and some have been promoting the production. Now highlight a few of them as follows.
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