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1. Conservative water use under high evaporative demand associated with smaller root metaxylem and limited trans-membrane water transport in wheat

Author:
Schoppach, Rémy; Wauthelet, Diego; Jeanguenin, Linda; Sadok, Walid
Source:
Functional plant biology 2014 v.41 no.3 pp. 257-269
ISSN:
1445-4408
Subject:
root hydraulic conductivity,   etc   ; Triticum; aquaporins; breeding; cultivars; drought tolerance; genotype; leaves; mercury; soil water; transpiration; vapor pressure; water conservation; wheat;     Show all 14 Subjects
Abstract:
... Efficient breeding of drought-tolerant wheat (Triticum spp.) genotypes requires identifying mechanisms underlying exceptional performances. Evidence indicates that the drought-tolerant breeding line RAC875 is water-use conservative, limiting its transpiration rate (TR) sensitivity to increasing vapour pressure deficit (VPD), thereby saving soil water moisture for later use. However, the physiologi ...
DOI:
10.1071/FP13211