Optimization of the production of mycorrhizal inoculum on substrate with organic fertilizer
Braz. j. microbiol
;
45(4): 1173-1178, Oct.-Dec. 2014. tab
Article
in English
| LILACS
| ID: lil-741266
ABSTRACT
The system for production of inoculum of arbuscular mycorrhizal fungi (AMF) using sand and vermiculite irrigated with nutrient solution is promising. However, organic amendments added to the substrate can stimulate sporulation of AMF and replace the nutrient solution. The aim of this study was to maximize the production of AMF (Acaulospora longula, Claroideoglomus etunicatum, Dentiscutata heterogama and Gigaspora albida) using selected organic substrates (vermicompost, coir dust and Tropstrato) together with sand and vermiculite. The production of spores varied among the tested AMF and according to the organic source added to the substrate. The vermicompost promoted higher sporulation of A. longula in relation to the other AMF and substrates. The Tropstrato® inhibited the sporulation of D. heterogama while the reproduction of C. etunicatum was not affected by the organic compounds. The inoculum of A. longula also showed a high number of infective propagules and promoted biomass accumulation in maize plants. The system of inoculum production using sand and vermiculite + 10% vermicompost favors the production of infective inoculum of A. longula with the fungus benefiting growth of corn plants.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Organic Chemicals
/
Spores, Fungal
/
Mycorrhizae
/
Fertilizers
Language:
English
Journal:
Braz. j. microbiol
Journal subject:
Microbiology
Year:
2014
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Pernambuco/BR
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