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- Title
INOCULAÇÃO EM SOJA COM Rhizophagus clarus PRODUZIDO EM SISTEMAS DE CULTIVO EM VASO E in vitro.
- Authors
Ronsani Malfatti, Aline de Liz; Purin da Cruz, Sonia
- Abstract
Inoculation of agronomic crops with arbuscular mycorrhizal fungi is a promising agronomic practice, which has been solidified by recommendation of recently-registered inoculants in Brazil. The need to understand effects of different inoculant formulations is, therefore, a fundamental aspect for basic and applied research. The aim of this study was to evaluate inoculum potential of the arbuscular fungus R. clarus cultivated in a pot culture system compared to the in vitro system and test the effect of both on growth and yield of soybean. Inoculum potential was tested in greenhouse conditions using maize as host plant. Values of root colonization showed that inoculum potential was 7% higher in the in vitro system. In order to evaluate the effects of both inoculants, an experiment was carried out in greenhouse conditions following a completely randomized design with three treatments and six replicates. The inoculant produced in vitro increased all nodulation parameters, but did not affect shoot mass or nitrogen of soybean plants. Grain yield, however, was 20% higher with the use of pot-produced inoculum. Pot culure system is the most promising technique to produce soybean inoculum, considering possible yield gains.
- Subjects
BRAZIL; VESICULAR-arbuscular mycorrhizas; INOCULATION of crops; HOST plants; GRAIN yields; TEST systems; CORN growth; SOYBEAN yield
- Publication
Scientia Agraria Paranaensis, 2019, Vol 18, Issue 3, p244
- ISSN
1677-4310
- Publication type
Article