African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 757

Full Length Research Paper

Effect of glyphosate used as a sugarcane chemical ripener in Côte d’Ivoire

Kouamé Konan Didier
  • Kouamé Konan Didier
  • University Félix HOUPHOUET-BOIGNY Cocody-Abidjan, UFR (Faculty) of Biosciences, Laboratory of Plant Physiology, 22 BP 582 Abidjan 22, Côte d’Ivoire.
  • Google Scholar
Péné Bi Crépin
  • Péné Bi Crépin
  • Sucaf CI/Somdiaa, R&D Directorate, 22 rue des Carrossiers 01 BP 1967 Abidjan 01, Côte d’Ivoire.
  • Google Scholar
N’guessan Aya Carine
  • N’guessan Aya Carine
  • Université Péléforo GBON Korogho, Côte d’Ivoire.
  • Google Scholar
Boua Bomo Mélanie
  • Boua Bomo Mélanie
  • Sucaf CI/Somdiaa, R&D Directorate, 22 rue des Carrossiers 01 BP 1967 Abidjan 01, Côte d’Ivoire.
  • Google Scholar
Ouattara Yah
  • Ouattara Yah
  • Sucaf CI/Somdiaa, R&D Directorate, 22 rue des Carrossiers 01 BP 1967 Abidjan 01, Côte d’Ivoire.
  • Google Scholar
Zouzou Michel
  • Zouzou Michel
  • University Félix HOUPHOUET-BOIGNY Cocody-Abidjan, UFR (Faculty) of Biosciences, Laboratory of Plant Physiology, 22 BP 582 Abidjan 22, Côte d’Ivoire.
  • Google Scholar


  •  Received: 08 May 2017
  •  Accepted: 14 July 2017
  •  Published: 31 August 2017

Abstract

Sugarcane chemical ripening is aimed at accelerating the sucrose accumulation in the stems for harvesting when the climate conditions of crop year are hardly optimal for natural ripening. The study aims at determining the best response of sugarcane varieties to glyphosate ripening effect and the harvest delay after its application in Ferké 2 Sugar Bowl, Northern Côte d’Ivoire, in order to improve the technological qualities of canes at the early harvest season. Twenty plantations (700 ha) hosting two commercial varieties NCo376 and SP711406 were treated with glyphosate (360 emulsion concentrated) at 0.8 L/ha. For each plantation, two sample plots of 1 ha control and treated were determined. Those samples were analyzed to determine the sucrose gradient all along the stalks and monitor their technological qualities after 10, 15 and 20 days. As results, glyphosate improved sucrose content and the recoverable sugar of treated varieties. SP71-1406 was more sensitive than NCo376 with uniform qualities all along stalks after 20 days. Gains of 1.6% sucrose content and 1.5% recoverable sugar were obtained, compared to the control. So, the uppermost parts preservation of harvested stalks is justified and a sugar gain of 0.13 t/ha except those generated by the ripener.

Key words: Glyphosate, ripener, technological quality, gradient, sucrose, recoverable sugar.