2004•Zhongguo nongye KexueRequires access

Breeding and Application of the Restorer Line “Hang No.1” in Super-high-yielding Hybrid Rice

Zhang Shui-jin

Abstract

The breeding process of the restorer line ‘Hang No.1’ of super-high-yielding hybrid rice carried by spaceflight and its major agronomic characters were discussed. The qualities of rice, the results of the provincial trials and producing paradigm in Fujian Province of the hybrid combinations ‘Teyouhang No.1’ and ‘ⅡYouhang No.1’ were displayed. It was found that the qualities of rice are improved notably of the hybrid combinations ‘Teyouhang No.1’ and ‘ⅡYouhang No.1’. Their protein contents were 10.7% and 10.8% in dry grains, respectively, and 1.9% and 2.0% higher than that of the control, ⅡYouming86 (8.8%).

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Key concepts: Hang, Agronomy, Biology, Line (geometry), Mathematics, Engineering, Structural engineering, Geometry