Drought priming at vegetative growth stage enhances nitrogen-use efficiency under post-anthesis drought and heat stress in wheat
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Drought priming at vegetative growth stage enhances nitrogen-use efficiency under post-anthesis drought and heat stress in wheat. / Liu, S.; Li, Xiangnan; Larsen, Dorthe Horn; Zhu, X.; Song, F.; Liu, Fulai.
In: Journal of Agronomy and Crop Science, Vol. 203, No. 1, 2017, p. 29-40.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Drought priming at vegetative growth stage enhances nitrogen-use efficiency under post-anthesis drought and heat stress in wheat
AU - Liu, S.
AU - Li, Xiangnan
AU - Larsen, Dorthe Horn
AU - Zhu, X.
AU - Song, F.
AU - Liu, Fulai
PY - 2017
Y1 - 2017
N2 - To study the effects of early drought priming at 5th-leaf stage on grain yield and nitrogen-use efficiency in wheat (Triticum aestivum L.) under post-anthesis drought and heat stress, wheat plants were first exposed to moderate drought stress (drought priming; that is, the leaf water potential reached ca. −0.9 MPa) at the 5th-leaf stage for 11 days, and leaf water relations and gas exchange rates, grain yield and yield components, and agronomic nitrogen-use efficiency (ANUE) of the primed and non-primed plants under post-anthesis drought and heat stress were investigated. Compared with the non-primed plants, the drought-primed plants possessed higher leaf water potential and chlorophyll content, and consequently a higher photosynthetic rate during post-anthesis drought and heat stress. Drought priming also resulted in higher grain yield and ANUE in wheat under post-anthesis drought and heat stress. Drought priming at vegetative stage improves carbon assimilation and ANUE under post-anthesis drought and heat stress and their combination in wheat, which might be used as a field management tool to enhance stress tolerance of wheat crops to multiple abiotic stresses in a future drier and warmer climate.
AB - To study the effects of early drought priming at 5th-leaf stage on grain yield and nitrogen-use efficiency in wheat (Triticum aestivum L.) under post-anthesis drought and heat stress, wheat plants were first exposed to moderate drought stress (drought priming; that is, the leaf water potential reached ca. −0.9 MPa) at the 5th-leaf stage for 11 days, and leaf water relations and gas exchange rates, grain yield and yield components, and agronomic nitrogen-use efficiency (ANUE) of the primed and non-primed plants under post-anthesis drought and heat stress were investigated. Compared with the non-primed plants, the drought-primed plants possessed higher leaf water potential and chlorophyll content, and consequently a higher photosynthetic rate during post-anthesis drought and heat stress. Drought priming also resulted in higher grain yield and ANUE in wheat under post-anthesis drought and heat stress. Drought priming at vegetative stage improves carbon assimilation and ANUE under post-anthesis drought and heat stress and their combination in wheat, which might be used as a field management tool to enhance stress tolerance of wheat crops to multiple abiotic stresses in a future drier and warmer climate.
KW - carbon, drought, high temperature, nitrogen, priming, wheat
U2 - 10.1111/jac.12190
DO - 10.1111/jac.12190
M3 - Journal article
VL - 203
SP - 29
EP - 40
JO - Journal of Agronomy and Crop Science
JF - Journal of Agronomy and Crop Science
SN - 0931-2250
IS - 1
ER -
ID: 171657620