摘要
利用 1 9个黄早四改良系与单交种西农 1 1号的亲本之一的西黄改组成近缘单交种作母本与西农 1 1号的另一亲本 WN11配成三交种 ,以研究近缘单交种对协调玉米制种花期的效果。结果表明 :近缘单交种的吐丝期均比西黄改吐丝期提前 ,并能与 WN11散粉期相遇 ;用近缘单交种配制的有些三交种产量高于或与原单交种相当 ,且主要农艺性状较为整齐。
Each of the nineteen improved lines of Huangzao 4 was crossed with Xihuang gai, which is one parent of single cross Xinong No.11,to produce the close relative crosses.These close relative crosses were crossed as female parent with WN 11 ,which is another parent of Xinong No.11,to produce tricrosses.All of materials were planted to study the effect on flowering coordination during seed corn production.The results showed that silking stage of close relative single crosses was earlier than of Xihuanggai,and met with shedding stage of WN 11 .Yield of several tricrosses was higher than of simillar to normal single cross,and main agronomic traits of them showed no difference.
出处
《西北植物学报》
CAS
CSCD
2000年第5期715-719,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
陕西省科委重点攻关项目
关键词
玉米
近缘单交种
制种
黄早四改良系
corn
close relative crosses
seed production
Huangzao 4 improved lines
