Differentiate responses of tetraploid and hexaploid wheat (
Drought stress
biomass allocation
ploidy levels
water use efficiency
wheat
yield
Journal
Plant signaling & behavior
ISSN: 1559-2324
Titre abrégé: Plant Signal Behav
Pays: United States
ID NLM: 101291431
Informations de publication
Date de publication:
02 01 2021
02 01 2021
Historique:
pubmed:
1
11
2020
medline:
3
8
2021
entrez:
31
10
2020
Statut:
ppublish
Résumé
Differentiate mechanism of wheat species in response to contrasting drought stress gradients implies a cue of its long-term domestication. In the present study, three water regimes including well-watered control (WW, 80% field water capacity (FC)), moderate drought stress (MS, 50% FC,) and severe drought stress (SS, 30% FC) were designed to reveal different responses of eight wheat species (four tetraploid and four hexaploid) representing different breeding decades and genetic origins to drought stresses. The data indicated that 50% FC and 30% FC fell into the soil moisture threshold range of non-hydraulic and hydraulic root signal occurrence, respectively. In general, grain yield, grain number/spike weight per plant, aboveground biomass, harvest index (HI) and water use efficiency (WUE) were significantly higher in hexaploid species than those of tetraploid species under drought stress (
Identifiants
pubmed: 33126814
doi: 10.1080/15592324.2020.1839710
pmc: PMC7781840
doi:
Substances chimiques
Water
059QF0KO0R
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
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