|Table of Contents|

Growth Conditions and Growth-promoting Effects of Soybean PGPR in the Black Soil Region of Northeast China(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年02期
Page:
270-273,277
Research Field:
Publishing date:

Info

Title:
Growth Conditions and Growth-promoting Effects of Soybean PGPR in the Black Soil Region of Northeast China
Author(s):
WANG Zhi-gang12ZHONG Peng3WANG Jian-li4XU Wei-hui1MO Ji-xian1
1.College of Life Science and Agriculture and Forestry,Qiqihar University,Qiqihar 161006;
2.Resources and Environment Institute,Northeast Agricultural University,Harbin 150030;
3.Soybean Research Institute,Heilongjiang Academy of Agricultural Sciences,Harbin 150086;
4.Institute of Pratacultural Sciences,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,Heilongjiang,China
Keywords:
Black soil region of northeast ChinaSoybeanPlant growth-promoting rhizobacteriaGrowth-promoting effect
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.02.022
Abstract:
In order to elucidate the growth-promoting effects of soybean plant growth-promoting rhirobacteria(PGPR),shake flasks and pot experiments were set to study the growth conditions and effects of three soybean PGPRs(FN,PD and SB) in the black soil region of northeast China.The results showed that optimum temperatures of three soybean PGPRs were 25℃.The biomass of FN changed little at pH 5.0-9.0 and the optimum pH of PD and SB were 5.0.MnSO4 to FN had a weak role in promoting growth at 1.0 g·L-1,PD was significantly inhibited by MnSO4,MnSO4 could significantly promote the growth of SB.MgSO4 could accelerate the growth of FN,the biomass of PD and SB were maximized when the concentration of MgSO4 were 1.0 g·L-1.The optimal salt concentrations of FN and PD were 1.0 g·L-1,the biomass of SB positively correlated with the concentration of salt.Different strains had a certain role in promoting agronomic traits of soybean,such as plant height,stem diameter,root dry weight and fresh weight,plant dry weight and fresh weight and root shoot ratio,etc.Because FN+PD+SB treatment had the best growth-promoting effect on soybean,we speculated the synergies should exist among three strains.

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Last Update: 2014-08-15