摘要
为了探明新鉴定的水稻两用核不育系望S的农艺性状,试验对望S及对照C815S的生育特性、株叶形态及穗粒性状等农艺性状进行了田间观察比较及相关性分析。结果表明,望S属于中稻迟熟类型不育系,感温性较强,生育期较长,出叶速度较快,分蘖能力较强,剑叶短、直、窄,地上部节间较短,有效穗数较多,每穗总粒数和着粒密度偏小,具有理想的株叶形态及穗粒性状,群体性状稳定。
Some agronomic traits of rice thermo-sensitive genic male sterile line Wang S were observed, recorded and compared with the control C815 S, and then analyzed on the correlation between these traits such as growing, plant-leaf type and panicle-spikelet characters in this study. The results showed that the Wang S was one of the mid-season late-mature male sterile lines; and was of stronger sensitivity to temperature, a longer growth period, faster leaf emergence, stronger tiller ability, a short, straight and narrow flag leaf, more effective panicles, less total grain number and grain density per panicle, ideal plant-leaf shape and panicle-spikelet traits, with stable population traits.
出处
《湖南农业科学》
2015年第10期5-8,共4页
Hunan Agricultural Sciences
基金
国家科技支撑计划项目(2014BAD01B00)
国家科技计划项目(2014AA10A604)
湖南省自然科学基金项目(2013JJ8011)
湖南省教育厅重点项目(13A042)
关键词
水稻
两用核不育系
农艺性状
rice
dual-purpose genic male sterile line
agronomic trait
