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A Study on Criterion, Identification and Distribution of Maturity Groups for Spring-sowing Soybeans in Northeast China(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2016年02期
Page:
181-192
Research Field:
Publishing date:

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Title:
A Study on Criterion, Identification and Distribution of Maturity Groups for Spring-sowing Soybeans in Northeast China
Author(s):
FU Meng-meng1;  WANG Yan-ping2;  REN Hai-xiang2;  WANG De-liang3;  BAO Rong-jun4;  YANG Xing-yong5;  TIAN Zhong-yan6;  CAO Jing-ju7;  FU Lian-shun8;  CHENG Yan-xi9;  SU Jiang-shun10;  SUN Bin-cheng11;  DU Wei-guang2; ZHAO Tuan-jie1;  GAI Jun-yi1
1.Soybean Research Institute of Nanjing Agricultural University/Key Laboratory for Soybean Biology, Genetics and Breeding, Ministry of Agriculture/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing 210095, China;
Keywords:
2.Mudanjiang Branch of Heilongjiang Academy of Agricultural Sciences/Mudanjiang Experiment Station of the National Center for Soybean Improvement;  Mudanjiang 157041;  China
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2016-02-0181
Abstract:
3.Heilongjiang Academy of Landreclamation Sciences, Jiamusi 154007, China; 4.Beian Branch of Heilongjiang Academy of Landreclamation Sciences, Beian 164009, China; 5.Keshan Branch of Heilongjiang Academy of Agricultural Sciences, Keshan 161606, China; 6.Daqing Branch of Heilongjiang Academy of Agricultural Sciences, Daqing 163316, China; 7.Wudalianchi Branch of Shandong Shengfeng Seed Industry Scientific and Technological Co, Ltd, Wudalianchi 164100, China; 8.Tieling Academy of Agricultural Sciences, Tieling 112616, China; 9.Changchun Academy of Agricultural Sciences, Changchun 130111, China; 10.Baicheng Academy of Agricultural Sciences, Baicheng 137000, China; 11.Hulunbuir Academy of Agricultural Sciences, Hulunbuir 162650, China Northeast spring sowing soybeans; Days from sowing to maturity; Maturity group(MG); Standard check for MG; Geographic distribution




Northeast China is the major soybean production area in China where the growth period traits, such as the days from sowing to maturity, are the major ecological traits varying from region to region. The maturity group(MG) system of the soybeans was firstly established in the US and then accepted internationally to characterize the cultivars for exchanging materials and planning breeding schedules. In the present study, a collection of soybean varieties composed of 361 landraces and released cultivars used in soybean production during the historical decades were tested with a group of American and domestic MG standard checks(MG000-MG III) at nine locations in Northeast China in 2011-2012 in order to establish a local MG grouping system and determine the MGs of the local varieties in Northeast China.The grouping procedure was as the following: At each location each year, the class limits of a MG were determined as the average days to maturity plus and minus half distance between the neighboring two MGs, all the MGs limit at all locations in all years were accordingly determined. Then the MG for each variety at each environment was nominated and finally the MG for each variety was determined according to its most counts among locations and years. Here we used the days from sowing to maturity (R8) to group MGs which has been the international usual way rather than the others such as days from emergence to R7, because after the seeds sown in the soil, they start water absorption and metabolism in early spring and days from R7 to R8 were different among the varities in Northeast China.The results obtained were as follows: (1)The MG class limits for various locations/sub-regions were determined and the best locations for each MG were nominated, such as Beian and Zhalantun for MG000 and MG00, Keshan and Mudanjiang for MG0 and MG I, Tieling for MG II and MG III; (2)The 361 Northeast spring soybean varieties were classified into six groups, MG000-MGIII, respectively; (3)The distribution of the various MGs in sub-regions in Northeast China was revealed, such as MG000-MG00 mainly in Northern Heilongjiang and Northern Inner Mongolia, MG0-MG I mainly in Central and Southern Heilongjiang province, MG II mainly in Jilin province, and MG III mainly in Liaoning province; (4)A number of the local MG standard checks in Northeast China were nominated for local utilization; (5)A local MG grouping procedure in Northeast China was suggested, ie the first step to assign an introduction with a preliminary MG through comparison with MG-known varieties and then test and determine its MG at the best locations for MG testing.

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Last Update: 2016-04-04