Yacon production at different planting seasons and growing environments

  • Diego Mathias Natal da Silva Universidade Federal do Espírito Santo
  • Fábio Luiz de Oliveira Universidade Federal do Espírito Santo
  • Mateus Augusto Lima Quaresma Universidade Federal do Espírito Santo
  • Wellington Abeldt Erlacher Universidade Federal do Espírito Santo
  • Tiago Pacheco Mendes Universidade Federal do Espírito Santo
Keywords: Smallanthus sonchifolius, Polymnia sonchifolia, Tuberous root, Yield, Temperature

Abstract

Yacon is a functional food with great potential for horticultural exploitation and its cultivation demands the generation of agronomic information. To address these needs, this study was performed to evaluate the production of yacon planted in different planting seasons under two growing conditions in Brazil. The experiments were conducted in two different locations, one in the mountain region (tropical microclimate at altitude with milder temperatures) and the other in the lowland region (warm tropical microclimate with higher temperatures). At both sites, yacon was planted in four seasons: autumn (April), winter (July), spring (September) and summer (December). At harvest, the tuberous roots were evaluated for leaf area index and the variables of vegetative development and productivity of plants (for total and standard commercial roots). It was concluded that yacon cultivation in mountain conditions (tropical climate with milder temperature) promotes the development and production of yacon. Additionally, planting in the autumn for both growing conditions (mountain or lowland) promotes the development and production of yacon, including increased production of roots of better commercial grade, allowing greater economic profitability. These results indicate that temperature has an influence on the growth and yield of the tuberous roots of yacon, and milder temperatures were more favourable.

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Author Biographies

Diego Mathias Natal da Silva, Universidade Federal do Espírito Santo
Engenheiro Agrônomo Doutor em Produção Vegetal, Pós-doutorando em Produção Vegetal - UFES
Fábio Luiz de Oliveira, Universidade Federal do Espírito Santo
Professor do Departamento de Agronomia da Universidade Federal do Espírito Santo. Doutor em Fitotecnia
Mateus Augusto Lima Quaresma, Universidade Federal do Espírito Santo
Engenheiro Agrônomo Doutor em Produção Vegetal
Wellington Abeldt Erlacher, Universidade Federal do Espírito Santo
Engenheiro Agrônomo Mestre em Produção Vegetal
Tiago Pacheco Mendes, Universidade Federal do Espírito Santo
Engenheiro Agrônomo Mestrando em Produção Vegetal
Published
2019-04-29
How to Cite
Natal da Silva, D. M., de Oliveira, F. L., Quaresma, M. A. L., Erlacher, W. A., & Mendes, T. P. (2019). Yacon production at different planting seasons and growing environments. Bioscience Journal, 35(4). https://doi.org/10.14393/BJ-v35n4a2019-42091
Section
Agricultural Sciences