湘南油菜茬杂交早稻育秧方式初探  

Seedling Raising Patterns of Early Hybrid Rice after Rape in Southern Hunan

作　　者：姚长溪[1] 

机构地区：[1]中国水稻研究所

出　　处：《杂交水稻》1995年第5期24-27,共4页Hybrid Rice

摘　　要：对湘南油菜茬杂交早稻的几种育秧方式进行了比较研究。提出适合于湘南油菜茬杂文早稻的育秧技术为温室（场地）两段培育带蘖或多蘖大秧技术。According to present high-yielding rape varieties or hybrid combinations applied in the southof Hunan Province,most of which are harvested in May 5～10,and basen on its climatic conditions,thestudies on seedling raising patterns of early hybrid rice whicb is planted after rape were conducted.It .is indi- cated that early hybrid rice should be seeded in the first ten-day period of April, and the pattern of two-stage seedling raising--in green house or earth-pit--should be adopted.The seedling raising methedshowed advantages in :(1) more tillers produced in seedling bed and the percentage of the seedling withtiller(s)up to 77.5%～83.9%;(2)giving full play to the superiority of root system of hybrid rice;(3)heavier dry matter weight of seedlings;(4)larger panicles with highcr seed setting pcrcentage of all kinds ofpanicles and a larger proportion of panicles generaled from main culms and tillers in seedling bed.

关 键 词：湘南 油菜茬 杂交早稻 育秧 分蘖 穗粒结构 

分 类 号：S511.304.3[农业科学—作物学]