|Table of Contents|

Comparison of Soybean Yield and Yield-related Traits of Agri-technology Demonstration Counties in Different Regions of China(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年04期
Page:
557-567
Research Field:
Publishing date:

Info

Title:
Comparison of Soybean Yield and Yield-related Traits of Agri-technology Demonstration Counties in Different Regions of China
Author(s):
YANG Ru-ping1; 2; 3; SONG Wen-wen1; SUN Shi1; WU Cun-xiang1; WANG Hua-jun3; HAN Tian-fu1; National Soybean Industrial Technology System Experiment Stations*
1.Institute of Crop Science,The Chinese Academy of Agricultural Sciences(CAAS),National Soybean Industry R&D Center,Beijing 100081；
2.Institute of Dryland Agriculture,Gansu Academy of Agricultural Sciences,Lanzhou 730070,Gansu;
3.College of Agronomy,Gansu Agricultural University,Lanzhou 730070,Gansu，China
Keywords:
China; Soybean; Regions; Yield; Yield-related traits; On-site survey; Stepwise regression
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.04.010
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 stepwise 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 second in Northwest and lower in the Northeast and South China.According to the stepwise 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.

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Last Update: 2014-08-18