关键词: 水稻, 超高产育种, 株型

Abstract:

The history, the present status and the trends of rice breeding for super high yield are summarized systematically and discussed comprehensively in this paper. The authors hold that dwarf breeding resulted in the first breakthrough in grain yield. The second breakthrough was made by means of hybrid rice, in which F1 heterosis was used successfully. The third breakthrough in the future would come from breeding for super high yield, and the methodology would be the combination of ideal plant type with the utilization of physio-logical vigor. Great advances have been made in breeding japonica rice for super high yield during the last decade. Practice has proved that creating new plant type and strong vigor via crossing indica with japonica or crossing geographically distant varieties, then interating the two through optimized combination of favorable characters are the effective ways for developing super rice.