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17 - Plant Growth-Promoting Bacteria Field Trials in Europe

from Part V - Application and Commercialisation of Endophytes in Crop Production

Published online by Cambridge University Press:  01 April 2019

By
Karen O’Hanlon
Edited by
Trevor R. Hodkinson ,
Fiona M. Doohan ,
Matthew J. Saunders  and
Brian R. Murphy
Trevor R. Hodkinson
Affiliation:
Trinity College Dublin
Fiona M. Doohan
Affiliation:
University College Dublin
Matthew J. Saunders
Affiliation:
Trinity College Dublin
Brian R. Murphy
Affiliation:
Trinity College Dublin
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Summary

There are increasingly restrictive EU regulations surrounding the use of chemicals in farming due to increased information linking environmental behaviour and ecotoxicity, such as the effect of the insecticide class neonicotinoids on bees. For this reason there will be a continued move towards a reduction of chemical use in farming throughout the EU. In this context, the use of plant growth-promoting bacteria (PGPB) offers an attractive alternative to chemical fertilisers. A range of commercially available PGPB products, consisting of different species of bacteria, offer a potential alternative to chemicals. This includes: rhizo power® by nadicom who provide bacteria-based organic fertilisers. In this chapter, we outline detailed findings of four field trials undertaken using PGPB in Europe on alfalfa, broccoli, faba beans and tomatoes. All trials using these products yielded positive results such as faster germination, higher yields, increased chlorophyll in leaves and improved tap root formation. Larger plants resulting in significantly higher yield of organic tomatoes were also observed in the tomato field trial. Longer tap root and deeper green colour was observed in the broccoli trial and a reduction in chocolate spot was shown when treated with Bacillus subtilis. Statistically significant higher yields were shown in treated alfalfa crops using Ensifer meliloti.

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Endophytes for a Growing World , pp. 371 - 389
Publisher: Cambridge University Press
Print publication year: 2019

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