Publication
Title
Multi-scale phenotyping of West-European and South-African maize hybrids with contrasting drought sensitivity
Author
Abstract
The urgent need of breeding more drought tolerant crops in order to meet the future needs of the growing world population, requires better understanding of the drought adaptation mechanisms. Phenotyping remains one of the main factors limiting breeding advance. By using a novel non-invasive root and shoot phenotyping system, we were able to link root and shoot phenotype and study their detailed development in time. Kinematic analysis provided the cellular basis of the observed differences in leaf growth. In this study, a set of commercial hybrid maize lines with contrasting drought sensitivity from West-Europe and South-Africa, together with the reference inbred line B73 were subjected to control and severe drought conditions in a glasshouse experiment in order to perform an extensive phenotyping of shoot and root growth. We showed that drought tolerance could be directly linked to advanced leaf and root growth dynamics and increased photosynthetic rates. At the cellular level, growth rate differences were mainly correlated with cell division rate. The typical ideotype of a drought tolerant line has fast growing shoot and root, and keeps its photosynthesis rate at a relatively high level even during wilting. (C) 2015 The Authors. Published by Elsevier B.V.
Language
English
Source (journal)
Procedia Environmental Sciences
(AGRI 2015)
Source (book)
4th International Conference on Agriculture and Horticulture (AGRI), FEB 15-17, 2015, Amsterdam, NETHERLANDS
Publication
Amsterdam : Elsevier science bv , 2015
ISSN
1878-0296
DOI
10.1016/J.PROENV.2015.07.195
Volume/pages
29 (2015) , p. 259
ISI
000380953000142
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 16.08.2017
Last edited 04.03.2024
To cite this reference