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Publication | Open Access

Increase Of Atmosphere Co2 Concentration And Its Effects On Culture/Weed Interaction

DOIFull Paper Access

14

Citations

0

References

2017

Year

Juciléia Irian dos Santos, Anne Elise Cesarin, Caetano A. R. Sales, Murilo Barbizan Bissoli Triano, P.F.R.B. MARTINS, Andreísa Flores Braga, Nelson Jayme Neto, A., Arthur M.A. Barroso, Pedro Luís da Costa Aguiar Alves
Zenodo (CERN European Organization for Nuclear Research)

Abstract

Climate change projections based on the emission of greenhouse effect gases suggest an increase in the concentration of atmospheric carbon dioxide, in up to 750 ppm. In this scenario, we have significant changes in plant development, and consequently, in agricultural systems. This study aims to evaluate the interaction between culture (<em>Glycine max</em>) and weed (<em>Amaranthus viridis</em> and <em>Euphorbia heterophylla</em>) in two conditions of CO<sub>2</sub>, 400 and 800 ppm. The results showed that the coexistence of culture with both weed species resulted in a mutual loss, with decrease in dry mass productivity of culture + weeds, in both conditions of CO<sub>2</sub>. However, when the culture is grown in association with <em>E. heterophylla</em>, total dry mass of culture + weed was smaller at 800 ppm. Soybean was more aggressive in comparison to the <em>A. viridis</em> in both the concentrations of CO<sub>2</sub>, but not in relation to the <em>E. heterophylla</em>.