Premium
Wheat's wild relatives vary in their response to nitrogen and ozone
Author(s) -
Brewster C.,
Stevens C.,
McAinsh M.
Publication year - 2018
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/aab.12450
Subject(s) - biology , aegilops tauschii , cultivar , agronomy , poaceae , botany , horticulture , biochemistry , gene , chromosome
Nitrogen and ozone air pollutants threaten plant biodiversity in the Mediterranean and Near‐East, a hotspot for crop wild relatives. This study examined responses of four wheat wild relatives and one cultivar to nitrogen (50 kg ha −1 year −1 ammonium nitrate) and ozone (100 ppb for 21 days). The ozone sensitivity of A. tauschii and T. aestivum ‘Cadenza’ were exacerbated by nitrogen, while A. speltoides was nitrophilous. The seed head biomass of T. aestivum ‘Cadenza’ was reduced by ozone; that of T. dicoccoides was unaffected. These species' in situ populations may be at risk. This study can inform their use for wheat breeding.