A DISCUSSION ON THE STRATEGY OF THE DEVELOPMENT OF RICE BREEDING

The paper summarized the process of rice breeding research of Fujian Province. There have been two breakthrough events: short-stature rice breeding and hybrid rice breeding in "three-line method". At present, there is a third breakthrough event, i.e., the use of sub-specific heterosis to produce Indica-Japonica hybrid rice in "two-line method". The paper also analysed two main factors which have led to the three breakthrough events in rice breeding; one is new ideas and the other is new materials.The strategy of the development of future rice bredding in Fujian Province was proposed. The breeder must make conventional breeding as the base, lay emphasis on hybrid rice breeding and develop new breeding technology.The conventional breeding aims at selecting and breeding mid-maturity and early-season Indica rice varieties with high yield, multi-resistance, good quality and wide adaptability. Hybrid breeding follows "two-line method", not "three-line method", and uses sub-specific heterosis, not varietal heterosis. Conventional breeding and hybrid breeding have an associated, penetrated and promoted relationship.New technology must be closely coordinated with conventional breeding. It can take advantage and overcome shortage,bringing their superiority into full play.