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Spaceflight Mutagenic Effects on Major Agronomic Characters of SP3 Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2011年01期
Page:
168-170
Research Field:
Publishing date:

Info

Title:
Spaceflight Mutagenic Effects on Major Agronomic Characters of SP3 Soybean
Author(s):
LIU Ling-xue1; 2; HE Hai-sheng2;  ZHENG Wei3; Guo Tai3;  WANG Zhi-xin3; WU Xiu-hong3; LI Can-dong3;  LIU Zhong-tang3; ZHANG Mao-ming3; ZHANG Hua3
1. College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang;
2. Jiansanjiang Research Institute of Heilongjiang Land Reclamation Bureau, Jiansanjiang 156300, Heilongjiang;
3. Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, Heilongjiang, China
Keywords:
Soybean;  Space;  Agronomic traits;  SP3
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.01.0168
Abstract:
To ascertain the variances of spaceflight soybean varieties and provide theoritical proofs for soybean breeding, SP3 popnlation of two spaceflight varieties Hefeng 25 and Hefeng 50 were studied. Major agronomic characters were studied by field test. The results showed that the plant height, pod number per plant, seed number per plant and pod number of main stem of the two varieties were higher than those of the earth control, and some of those traits had a positive tendency. This study confirmed variant plants according to two times larger than standard discrepancy and then calculated the mutational rate. The mutational rate of plant height, pod number of the main stem in SP3 popnlation of Hefeng 25 were wider than Hefeng 50. There were different variances among varieties after spaceflight, but the overall tendency was benefited for breeding choices. The variability changes of SP3 progenies showed that space mutagenesis provided new germplasm for soybean breeding effectively.

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Last Update: 2014-09-11