Poster (Scientific congresses and symposiums)
Impacts of Plant Growth-Promoting Rhizobacteria on Wheat Growth under Greenhouse and Field Conditions
Nguyen, Minh; du Jardin, Patrick; Jijakli, Haissam et al.
201510th International PGPR Workshop Liège, Belgium – 2015
 

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Keywords :
PGPR; wheat
Abstract :
[en] Plant Growth-Promoting Rhizobacteria (PGPR) are well-known on stimulating root growth, enhancing mineral availability, and nutrient use efficiency in crops, and therefore become promising tool for sustainable agriculture. The aim of this project is to screen PGPR strains to enhance wheat growth and yield in combination with an optimised nitrogen (N) fertilizer dose, and thus finally reduce the use of N fertilizer with equivalent yield as the recommended N dose. A list of PGPR has been collected, including (1) Mix1 (a mix of Azospirillum sp., Azorhizobium sp., and Azoarcus sp.), (2) Mix2 (a mix of Mix1 plus with two strains phosphorus-solubilizing Bacillus sp.), (3) Bacillus amyloliquefaciens a, (4) Bacillus subtilis, and (5) Bacillus amyloliquefaciens b. The PGPR were screened in both greenhouse and field condition 2014. There was significant increase in root dry weight and in root per shoot ratio of plants inoculated with Mix1 in the greenhouse. Under field condition, besides the first factor PGPR, an additional factor, i.e. four N fertilizer doses, was applied in the combination with PGPR. Without or at low N fertilizer doses, the results showed that the grain yield declined significantly. The highest grain yield increase was fifteen per cent above the control and achieved by inoculating Bacillus subtilis without application of N fertilizer. However, there was statistically insignificant in all treatments due to variability between plot replicates. Based on these results, a modified protocol plus new strategies for PGPR selection has been built up for 2015 trial to reduce the influence of variability on field and possibly achieve the higher yield increase.
Research center :
Plant Biology
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Nguyen, Minh ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Biologie végétale
du Jardin, Patrick  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Biologie végétale
Jijakli, Haissam  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytopathologie
Bodson, Bernard ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytotechnie des régions tempérées
Ongena, Marc ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Bio-industries
Colinet, Gilles  ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Eau-Sol-Plantes
Vandenbol, Micheline ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Microbiologie et génomique
Spaepen, Stijn
Delaplace, Pierre  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Biologie végétale
Language :
English
Title :
Impacts of Plant Growth-Promoting Rhizobacteria on Wheat Growth under Greenhouse and Field Conditions
Publication date :
16 June 2015
Event name :
10th International PGPR Workshop Liège, Belgium – 2015
Event organizer :
ULG
Event place :
Liege, Belgium
Event date :
16-19 June 2015
Audience :
International
Name of the research project :
AgricultureIslife, Project 3B
Funders :
AgricultureIslife
Available on ORBi :
since 13 February 2016

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