论文部分内容阅读
鉴定出23个可保持 T 型不育性的自交系,2个 T 型恢复系。M 型不育性保持系的出现频率较低,且易受环境条件影响,利用价值较小。在试验范围内 T 型恢复性受一对显性基因控制。不育的农大10号较其可育相似者增产10％以上,不育杂交种的产量因素也较可育者为优。不育类型把较高比例的磷营养运转分配到茎中部和雌穗。不育雄穗的淀粉酶、蛋白酶和全氮量的含量与可育雄穗有所不同。
Twenty-three inbred lines that can maintain T-type sterility and two T-type restorer lines were identified. The M type infertility maintainer has a low frequency of occurrence and is susceptible to environmental conditions and has low utilization value. In the experimental range T-type recovery by a dominant gene control. Infertility Nongda 10 is more than 10% more fertile than its fertile counterpart, and the yield of infertile hybrids is also better than that of fertile ones. The type of infertility assigned a higher proportion of phosphorus nutrition to stem mids and ears. The content of amylase, protease and total nitrogen in sterile tassels is different from that of fertile tassels.