Harvesting time in relation to sugar and protein content in six varieties of sweet potato

Authors

  • Dinah Mochel de Menezes
  • Manoel Maciel do Rego
  • Adilson Nobre
  • Carlos Alberto Meneguelli

DOI:

https://doi.org/10.1590/S1678-3921.pab1976.v11.16921

Keywords:

Sweet potato, <i> Ipomoea batatas</i>, varieties, sugar content, protein content, harvesting time, chemical analysis, chemical composition

Abstract

Six varieties of sweet potato ("Roxa, Branquinha, Moranguinha, Amendoim, Salmon and 35-S.C.A.) were planted in an area known as "Baixada Fluminense", in the State of Rio de Janeiro, in July 1973. Times of harvesting were 4, 6 and 8 months after planting. Roots and leaves were investigated for protein and sugar content and resulta expressed on basis of dry matter. The highest sugar and protein content in roots was found in 6 (77%) and 8 (4,92%) month old plants, respectively. Four month old plants had the highest leaf protein content (13,71%). Among the varieties studied, the highest protein content in both roots (4,84% and 4,58%) and leaves (16,50% and 11,70%) was observed in "Amendoim" and "Roxa".

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How to Cite

Menezes, D. M. de, Rego, M. M. do, Nobre, A., & Meneguelli, C. A. (2014). Harvesting time in relation to sugar and protein content in six varieties of sweet potato. Pesquisa Agropecuaria Brasileira, 11(12), 49–52. https://doi.org/10.1590/S1678-3921.pab1976.v11.16921

Issue

v.11, n.12, 1976: Série Agronomia

Section

ERRATA