大豆科学2012，Vol.31Issue(4)：557-567,11.
中国不同地区科技示范县大豆单产及产量相关性状的比较
Comparison of Soybean Yield and Yield-related Traits of Agri-technology Demonstration Counties in Different Regions of China
摘要
Abstract
The on-site sample survey of 130 and 141 agri-technology demonstration counties in 18 and 20 provinces(autonomous regions) of China was conducted in 2010 and 2011 , respectively. After the survey, the key yield limiting factors in different production regions were determined with step-wise multiple regression analysis. The results showed that soybean sowing dates were consistent with cultivation conditions and farming system in different regions. The order of the sowing date span was South ( biggest) , Northwest, Northeast and Huang-Huai-Hai( HHH,smallest) region;The plant density was the highest in Northeast, middle in Northwest and HHH regions,and the lowest in South China. Soybean yield was the highest in Northwest, the second in the Northeast, the third in HHH and the lowest in the South. Among the agronomic and yield-related traits, Northeast, Northwest, HHH and South regions were listed in descending order of plant height; the pod and seed numbers per plant has the same change trend in different production regions, arranging from maximum to minimum was South, Northwest, HHH and Northeast in 2010 and Northwest, South, HHH and Northeast in 2011. The 100-seed weight was highest in HHH, the sec- ond in Northwest and lower in the Northeast and South China. According to the slepwise regression coefficients, the key yield limiting factor of soybean was the seed number per plant in the Northeast and South China,and the plant density in Northwest and HHH regions. The measures to improve soybean yield performances in different regions were discussed as well.关键词
中国/大豆/地区/单产/实地调查/产量相关性状/逐步回归Key words
China/Soybean/Regions/Yield/Yield-related traits/On-site survey/Stepwise regression分类
农业科技引用本文复制引用
杨如萍,宋雯雯,孙石,吴存祥,王化俊,韩天富,国家大豆产业技术体系综合试验站..中国不同地区科技示范县大豆单产及产量相关性状的比较[J].大豆科学,2012,31(4):557-567,11.基金项目
农业部财政部现代农业产业技术体系建设专项(CARS-04). （CARS-04）
