par Havaux, Michel C.
Référence Journal of agricultural science, 104, 3, page (501-504)
Publication Publié, 1985
Article révisé par les pairs
Résumé : Disks of hard wheat (Triticum durum Desf.) leaves subjected to rapid desiccation over 4 h showed noticeable changes in the shape of the in vivo chlorophyll fluorescence induction curves. In drought-sensitive varieties (such as Claridoc), water stress resulted in a strong inhibition of the slow fluorescence induction transients. In particular, the fluorescence quenching rate wasmarkedly decreased in water-stressed leaf disks. In contrast, leaves of drought-resistant varieties (such as Aouedj) showed onlyminor changes in chlorophyll fluorescence. The results of this investigation suggest that the slow transient of the in vivo chlorophyll fluorescence induction phenomenonmay provide a simplemethod for selecting drought-tolerant wheats. © 1985, Cambridge University Press. All rights reserved.