国家科技攻关项目2001BA511B08-12;科技支撑计划项目2006BAD13B06;农业部结构调整重大技术研究专项04-06-02B资助 Supported by the State Key Sci & Tech Project of China2001BA511B08-12;the National Key Technology R & D Program of China2006BAD13B06;the Special Key Sci & Tech Project for Structure Adjustment of the Ministry of Agriculture of China04-06-02B