2009
DOI: 10.4314/aga.v19i2.1712
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Effet De La Toxicite Du Fer Sur L\'activite Photosynthetique Du Riz.

Abstract: RESUMEEn zone tropicale, la culture du riz (Oryza sativa L.), de bas-fond (avec ou sans contrôle de l'eau), est souvent confrontée au problème de toxicité ferreuse. Cette contrainte édaphique est couramment observée dans les bas-fonds ouest-africains. Une étude a été réalisée afin de déterminer l'effet de la toxicité ferreuse sur l'activité photosynthétique du riz. Quatre variétés de riz, à sensibilité différente à la toxicité ferreuse, ont été cultivées en champ à Bouaké (site non toxique) et à Korhogo (site … Show more

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Cited by 3 publications
(2 citation statements)
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“…On the other hand, relatively high pH, carbon content and organic matter content indicate a slow decomposition of organic matter [42] due to drought conditions. The high iron content indicates that iron toxicity characterizes the area [43]. These modifications of the physical and chemical properties of the soil and even the fluctuation of the water in the soil confirm the impoverished nature of the transient hydromorphic soils between the lowland itself and the plateau.…”
Section: Discussionmentioning
confidence: 88%
“…On the other hand, relatively high pH, carbon content and organic matter content indicate a slow decomposition of organic matter [42] due to drought conditions. The high iron content indicates that iron toxicity characterizes the area [43]. These modifications of the physical and chemical properties of the soil and even the fluctuation of the water in the soil confirm the impoverished nature of the transient hydromorphic soils between the lowland itself and the plateau.…”
Section: Discussionmentioning
confidence: 88%
“…Bongoua, maintains that the plant develops an iron exclusion system on the root surface [31]. When these root barriers are crossed, the plant resorts to mechanisms of adaptation or enzymatic inactivation of iron in plant tissues [32]. The resistance of these different barriers depends on several factors, in particular, the duration of the stress.…”
Section: Discussionmentioning
confidence: 99%