Potato yield and metabolic changes by use of biofertilizer containing L-glutamic acid

Authors

  • Cinthia Röder Universidade Federal do Paraná
  • Átila Francisco Mógor Universidade Federal do Paraná http://orcid.org/0000-0003-4199-9079
  • Vivian Jaskiw Szilagyi-Zecchin Universidade Federal do Paraná
  • Luiz Gabriel Gemin Universidade Federal do Paraná
  • Gilda Mógor Universidade Federal do Paraná

DOI:

https://doi.org/10.14295/cs.v9i2.2564

Keywords:

Solanum tuberosum, Corynebacterium glutamicum, organic production, biofertilizer, amino acid

Abstract

The identification of natural bioactive sources capable of enhancing yield gains on agriculture is a tool to promote sustainability. In this study, the effect of foliar applications of sugarcane molasses fermented by the bacteria Corynebacterium glutamicum, containing 30% (w/v) of the amino acid L-glutamic acid was tested on organically grown potato for two seasons. Four foliar applications at intervals of ten days were made using solutions with different concentrations of the fermented broth (0.2, 0.4, 0.6, 0.8 mL L-1). Total and commercial potato yield and biochemical alterations on leaves at 50 and 60 days after planting were determined. The applications of the fermented broth promoted yield gains and changes in chlorophylls, carotenoids, nitrate reductase enzyme (EC 1.6.6.1) activity, delaying the senescence and improving the free amino acid and soluble protein content of leaves. It was concluded that the fermented broth was able of improving potato yield by stimulating the nitrate reductase activity.

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Author Biographies

Cinthia Röder, Universidade Federal do Paraná

Setor de Ciências Agrárias - Universidade Federal do Paraná- departamento de fitotecnia e fitossanitarismo

Átila Francisco Mógor, Universidade Federal do Paraná

Setor de Ciências Agrárias - Universidade Federal do Paraná- departamento de fitotecnia e fitossanitarismo

Vivian Jaskiw Szilagyi-Zecchin, Universidade Federal do Paraná

Setor de Ciências Agrárias - Universidade Federal do Paraná- departamento de fitotecnia e fitossanitarismo

Luiz Gabriel Gemin, Universidade Federal do Paraná

Setor de Ciências Agrárias - Universidade Federal do Paraná- departamento fitotecnia e fitossanitarismo

Gilda Mógor, Universidade Federal do Paraná

Setor de Ciências Agrárias - Universidade Federal do Paraná- departamento de fitotecnia e fitossanitarismo

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Published

2018-08-01

How to Cite

Röder, C., Mógor, Átila F., Szilagyi-Zecchin, V. J., Gemin, L. G., & Mógor, G. (2018). Potato yield and metabolic changes by use of biofertilizer containing L-glutamic acid. Comunicata Scientiae, 9(2), 211–218. https://doi.org/10.14295/cs.v9i2.2564

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Section

Original Article