高粱新选不育系研究

采用不完全双列杂交、人工控制授粉和田间自然鉴定等方法,对6个中晚熟不育系和6个早熟不育系进行了配合力、柱头生活力和其他主要农艺性状鉴定.结果表明,中晚熟不育系中V_4A的一般配合力、柱头生活力、育性、熟期、对丝黑穗病的抗性等综合农艺性状表现最好;早熟不育系中1105A的一般配合力、穗长、千粒重、育性等性状表现较佳.这两个不育系可在我国高粱春播中晚熟区和早熟区加以利用.

Studies on the New Sorghum Sterile Lines

Partial diallcl cross, controlled pollination and natural field evaluation were adopted in this study to evaluate six middle-late and six early sorghum sterile lines, for their combining ability, stigma vigor and other major characters. The results indicated that, of all the middle-late lines, V4A performed best so far as the general combining ability, stigma vigor, sterility, mature period and resistance to head smul were concerned. Among the six early lines, 1105A gave the best performance in general combining ability, head length, 1000-grain weight, and sterility. It is hereby recommended that both the above-mentioned lines can be utilized for spring sowing in the middle-late mature and early mature areas.