The yield components and grain filling characters of northern large panicle type super japonica hybrid rice Liaoyou 3072 were studied.

Analysis of genetic effects of quality trait in japonica hybrid rice;

The yield of Japonica hybrid rice affected by impurity on the basis of CMS-D1;

Ploidy identification of two-seedlings per seed in F_2 generation of japonica hybrid rice(Oryza sativa L.);

The paper reviewed the history of hybrid japonica rice development in China; analysed the status and the existing problems of of hybrid japonica rice.

The new double cropping second season and single cropping varieties of hybrid japonica rice and conventional japonica rice in the regional trials of Zhejiang Province from 2001 to 2003 were chosen to compare in their major agronomic and economic characters.

Through the background and current status of research of hybrid rice in northern China, the achievements and concerning problems in practice, the authors put forward five respects abvout the techniques in developing hybrid japonica rice in northern China.

Effects of Water Stress on the Endogenous Hormone Contents of North Super-rice During Grain-filling Stage;

Technology of planting pattern of small watermelon plus super hybrid rice with high efficiency and yield;

Practice and creative ideals on super hybrid rice breeding;

Effects of cultivation patterns on growth and yield of super hybrid rice and its analysis of grey correlation;