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Crop and Pasture Science Crop and Pasture Science Society
Plant sciences, sustainable farming systems and food quality
RESEARCH ARTICLE

Improvement of some growth and yield parameters of faba bean (Vicia faba) by inoculation with Rhizobium laguerreae and arbuscular mycorrhizal fungi

Sandra Pereira https://orcid.org/0000-0003-2998-814X A B F , Ângela Mucha A , Berta Gonçalves A C , Eunice Bacelar A C , Aleš Látr D , Helena Ferreira A C , Irene Oliveira A E , Eduardo Rosa A B and Guilhermina Marques A B
+ Author Affiliations
- Author Affiliations

A CITAB – Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal.

B Department of Agronomy, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.

C Department of Biology and Environment, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.

D Symbiom Ltd, Sázava 170, 56301 Lanškroun, Czech Republic.

E CEMAT-IST-UL – Centre for Computational and Stochastic Mathematics, University of Lisbon, 1749-016 Lisbon, Portugal.

F Corresponding author. Email: sirp@utad.pt

Crop and Pasture Science 70(7) 595-605 https://doi.org/10.1071/CP19016
Submitted: 11 January 2019  Accepted: 23 April 2019   Published: 5 August 2019

Abstract

The use of improved biofertilisers such as rhizobia and arbuscular mycorrhizal fungi (AMF) in legume crops is a promising technology that can be an alternative source of nitrogen and phosphorus. A common problem when growing faba bean (Vicia faba L.) and other leguminous plants is the low efficiency of native rhizobial strains. Consequently, there is a need to search for efficient nitrogen-fixing inoculant strains able to increase crop productivity. This study aimed to test the effects of single and dual inoculation with Rhizobium laguerreae and AMF on the growth and yield of faba bean plants. Several parameters were evaluated at flowering stage (number of flowers, stems and leaves, shoot and root biomass, leaf area, leaf mass per area and leaf area ratio, and gas-exchange parameters) and at harvesting stage (number and weight of pods and seeds). Plants receiving single inoculation with Rhizobium laguerreae showed a significant increase in number of leaves, leaf area, leaf mass per area and leaf area ratio, as well as in all yield parameters. Single inoculation with AMF also significantly increased the yield parameters of faba bean plants. Co-inoculation presented significant improvements in leaf area ratio and in all productivity parameters compared with the control, but co-inoculation was not significantly different from the individual inoculations.

Additional keywords: broad bean, tripartite symbiosis.


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