油菜茬后直播杂交水稻对其生育特性及产量性状的影响  

Influence of Direct Seeding on Growth Characteristics and Yield Characters of Hybrid Rice after Rape Harvest

作　　者：刘蓉[1] 陶诗顺[1] 鲁有均[1] 江谧[1] 王凤丽[1] 

机构地区：[1]西南科技大学生命科学与工程学院,四川绵阳621010

出　　处：《贵州农业科学》2012年第2期28-30,33,共4页Guizhou Agricultural Sciences

基　　金：国家"十二五"科技支撑计划"四川盆地杂交中稻持续丰产高效技术集成创新与示范"(2011BAD16B05)

摘　　要：为油菜茬后直播杂交水稻的品种选择和栽培技术措施的制定提供依据,选用4个杂交稻品种分别进行油菜茬后直播和正常季节育秧移栽,对比两种处理方式下杂交稻的生育特性及产量性状。结果表明:与育秧移栽相比,直播杂交稻生育进程加快,全生育期缩短14～22d,水稻分蘖势较强,单位面积的茎蘖总量较大,单株有效穗增加,但穗着粒数和实粒数均明显降低,最终单株产量与育秧移栽无明显的差异。Four hybrid rice varieties were tested in the field after rape harvest under two different cultivation patterns of direct seeding and seedling transplanting to compare their growth characteristics and yield characters and to provide the scientific basis for variety selection and cultivation technology. The results showed that the direct seeding pattern could shorten growth period （14 ~ 22 d earlier）. And improve tillering vigor, total tillering quantity per unit area and effective spikes/plant of tested hybrid rice varieties compared with the seedling transplanting pattern. There was no significant difference in yield/ plant between two different cultivation patterns because the direct seeding pattern reduced seeds/spike and full seeds/spike of tested hybrid rice varieties obviously.

关 键 词：杂交水稻 油菜茬后直播 生育特性 产量性状 

分 类 号：S511[农业科学—作物学]