关键词: 苦瓜, 苦瓜, 氮肥, 磷肥, 钾肥, 产量, 品质

Abstract: The breeding research about “three-line” japonica hybrid rice of jiangsu province has been developed for many years and has been made quite great progress since 2000, especially at the creation of parents and the improving of rice quality. But the defects of new japonica hybrid rice are exhibited not only the number of combinations with good heterosis fit for widely applying into crop production is limited but also their competitive superiority in yield and quality is not outstanding. In this article, we presented some breeding strategies for japonica hybrid rice, such as improving of quality, breeding of japonica cytoplasmic male sterile lines (CMS) with high outcrossing seed-setting rate, breeding of japonica restorer lines with indica-compatibility, establishment of hybrid F1 with ideal plant type and good heterosis in grain, and so on.