Effect of soil water content, intercepted radiation and temperature on sugar cane sucrose balance and partition

Martiné Jean-François, Lebret Pascal, Bonhomme Raymond. 2001. Effect of soil water content, intercepted radiation and temperature on sugar cane sucrose balance and partition. In : Proceedings of the XXIVth ISSCT Congress. Hogarth D.M. (ed.). ISSCT. Brisbane : ISSCT, 58-64. ISBN 0-949678-10-4 ISSCT Congress. 24, Brisbane, Australie, 16 Septembre 2001/21 Septembre 2001.

Titre français : Effet de la teneur en eau du sol, du rayonnement intercepté et de la température sur l'élaboration du sucre et la partition / Titre espagnol : Effectos del contenido de humedad, radiacion y temperatura en el balance de sacarosa y su particion

Résumé : Changes in the sugar and structural (non-sugar) components in cane stalks of seven crops grown under artificial water stress and a reduction in the photosynthetic source by defoliation were determined. Under non-limiting conditions, changes in these components were similar and linked with stalk dry weight, explaining the distribution between structural material and sugar. Sugar production and the fraction of the total dry matter in the millable stalk which is sugar can be predicted simply from the stalk dry weight. Where water and radiation are limited, the trends in the proportions of these components diverge strongly. Pronounced water stress, a low radiation/temperature ratio or recovery of stalk turgidity after stress are the main significant environmental factors causing these divergences. These factors, interacting in a complex manner, modify the simple partition calculated from the millable stalk dry weight.

Mots-clés Agrovoc : Saccharum, teneur en eau du sol, radiation, température, teneur en glucides, tige, biomasse, teneur en eau, facteur du milieu, stress dû à la sécheresse

Mots-clés géographiques Agrovoc : La Réunion, France

Mots-clés complémentaires : Stress hydrique, Teneur en sucrose

Classification Agris : F62 - Physiologie végétale - Croissance et développement

Auteurs et affiliations

• Martiné Jean-François, CIRAD-CA-Canne à sucre (REU)
• Lebret Pascal
• Bonhomme Raymond, INRA (GLP)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/486018/)

Métriques

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