High resolution mapping of traits related to whole-plant transpiration under increasing evaporative demand in wheat.

ABSTRACT: Atmospheric vapor pressure deficit (VPD) is a key component of drought and has a strong influence on yields. Whole-plant transpiration rate (TR) response to increasing VPD has been linked to drought tolerance in wheat, but because of its challenging phenotyping, its genetic basis remains unexplored. Further, the genetic control of other key traits linked to daytime TR such as leaf area, stomata densities and - more recently - nocturnal transpiration remains unknown. Considering the presence of wheat phenology genes that can interfere with drought tolerance, the aim of this investigation was to identify at an enhanced resolution the genetic basis of the above traits while investigating the effects of phenology genes Ppd-D1 and Ppd-B1 Virtually all traits were highly heritable (heritabilitie

SUBMITTER: Schoppach R 

PROVIDER: S-EPMC4861027 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature