摘要
对日本新育成的粳型杂交稻和常规品种的物质生产及营养特性进行了比较研究。粳型杂交稻与常规品种相比，生育前期具有较强的干物质积累能力；干物质能较多的转运到穗中去，尤其是抽穗前贮藏物质的转运率高；养分吸收能力强，对氮、钾的吸收比值高；穗大粒多，增产显著。利用杂种优势提高粳稻区水稻产量是一条重要途径。
Compsrison of the production and nutrition characteritics for Japonica hybrid Rice bred in Japan and conventional rice was conducted. The Japonica hybrid rice had following advantages in comparing with conventional rice: higher dry matter accumulation during early development; more dry matter being carried into spikes,espcially higher transfering rate of stored matter before heading; higher ability of assimilating nutrients and high rate of assimilating N. K; larger spikes and more grains and significantly raised yield. It's an important way to raise Japonics rice hybrid by using heterosis.
出处
《西南农业学报》
CSCD
1995年第4期11-16,共6页
Southwest China Journal of Agricultural Sciences
关键词
粳稻
杂交稻
常规稻
物质生产
营养特性
Japonica Rice Hybred Rice Matter Production Nutrition characteritics
