Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation

Research output: Contribution to journalJournal articlepeer-review

Standard

Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation. / Wang, Chao; Wu, Shuxia; Tankari, Moussa; Zhang, Ximei; Li, Li; Gong, Daozhi; Hao, Weiping; Zhang, Yanqing; Mei, Xurong; Wang, Yufei; Liu, Fulai; Wang, Yaosheng.

In: Agricultural Water Management, Vol. 209, 2018, p. 94-101.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Wang, C, Wu, S, Tankari, M, Zhang, X, Li, L, Gong, D, Hao, W, Zhang, Y, Mei, X, Wang, Y, Liu, F & Wang, Y 2018, 'Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation', Agricultural Water Management, vol. 209, pp. 94-101. https://doi.org/10.1016/j.agwat.2018.07.020

APA

Wang, C., Wu, S., Tankari, M., Zhang, X., Li, L., Gong, D., Hao, W., Zhang, Y., Mei, X., Wang, Y., Liu, F., & Wang, Y. (2018). Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation. Agricultural Water Management, 209, 94-101. https://doi.org/10.1016/j.agwat.2018.07.020

Vancouver

Wang C, Wu S, Tankari M, Zhang X, Li L, Gong D et al. Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation. Agricultural Water Management. 2018;209:94-101. https://doi.org/10.1016/j.agwat.2018.07.020

Author

Wang, Chao ; Wu, Shuxia ; Tankari, Moussa ; Zhang, Ximei ; Li, Li ; Gong, Daozhi ; Hao, Weiping ; Zhang, Yanqing ; Mei, Xurong ; Wang, Yufei ; Liu, Fulai ; Wang, Yaosheng. / Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation. In: Agricultural Water Management. 2018 ; Vol. 209. pp. 94-101.

Bibtex

@article{8357564e31fb43c0a1a7fb9d8997525b,
title = "Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation",
abstract = "Fertigation can improve water use efficiency (WUE) compared with conventional separate supply of water and fertilizers to plants. Yet the mechanisms underlying the improved WUE under fertigation remain largely elusive. Therefore, the impact of water and nitrogen (N) on leaf gas exchange, plant water relations, ABA signaling and WUE as well as leaf δ 13C and δ 18O were investigated in order to unravel how water and N modulate plant WUE. Results showed that reduced soil water regimes under N fertigation caused partial closure of stomata via decreased plant water status and intensified root-to-shoot ABA signaling, resulting in improved intrinsic WUE (WUE i). Decreased soil water regimes increased plant WUE (WUE p) and leaf δ 13C, and the increased leaf δ 13C was due to reduced g s and/or higher specific leaf N content enhanced photosynthetic capacity. Leaf δ 18O and δ 13C further indicated that the significant increase in leaf δ 13C under the reduced water regimes was caused primarily by reductions in g s compared with N nutrition. Therefore, g s rather than N nutrition predominated regulation of plant WUE under fertigation. Moderate soil water regimes with sufficient N supply are recommended for fertigation in terms of achieving high fresh fruit yield, WUE and nutrient uptake. ",
keywords = "Abscisic acid, Carbon isotopic composition, Irrigation, Nitrogen, Oxygen isotopic composition, Physiology",
author = "Chao Wang and Shuxia Wu and Moussa Tankari and Ximei Zhang and Li Li and Daozhi Gong and Weiping Hao and Yanqing Zhang and Xurong Mei and Yufei Wang and Fulai Liu and Yaosheng Wang",
year = "2018",
doi = "10.1016/j.agwat.2018.07.020",
language = "English",
volume = "209",
pages = "94--101",
journal = "Agricultural Water Management",
issn = "0378-3774",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Stomatal aperture rather than nitrogen nutrition determined water use efficiency of tomato plants under nitrogen fertigation

AU - Wang, Chao

AU - Wu, Shuxia

AU - Tankari, Moussa

AU - Zhang, Ximei

AU - Li, Li

AU - Gong, Daozhi

AU - Hao, Weiping

AU - Zhang, Yanqing

AU - Mei, Xurong

AU - Wang, Yufei

AU - Liu, Fulai

AU - Wang, Yaosheng

PY - 2018

Y1 - 2018

N2 - Fertigation can improve water use efficiency (WUE) compared with conventional separate supply of water and fertilizers to plants. Yet the mechanisms underlying the improved WUE under fertigation remain largely elusive. Therefore, the impact of water and nitrogen (N) on leaf gas exchange, plant water relations, ABA signaling and WUE as well as leaf δ 13C and δ 18O were investigated in order to unravel how water and N modulate plant WUE. Results showed that reduced soil water regimes under N fertigation caused partial closure of stomata via decreased plant water status and intensified root-to-shoot ABA signaling, resulting in improved intrinsic WUE (WUE i). Decreased soil water regimes increased plant WUE (WUE p) and leaf δ 13C, and the increased leaf δ 13C was due to reduced g s and/or higher specific leaf N content enhanced photosynthetic capacity. Leaf δ 18O and δ 13C further indicated that the significant increase in leaf δ 13C under the reduced water regimes was caused primarily by reductions in g s compared with N nutrition. Therefore, g s rather than N nutrition predominated regulation of plant WUE under fertigation. Moderate soil water regimes with sufficient N supply are recommended for fertigation in terms of achieving high fresh fruit yield, WUE and nutrient uptake.

AB - Fertigation can improve water use efficiency (WUE) compared with conventional separate supply of water and fertilizers to plants. Yet the mechanisms underlying the improved WUE under fertigation remain largely elusive. Therefore, the impact of water and nitrogen (N) on leaf gas exchange, plant water relations, ABA signaling and WUE as well as leaf δ 13C and δ 18O were investigated in order to unravel how water and N modulate plant WUE. Results showed that reduced soil water regimes under N fertigation caused partial closure of stomata via decreased plant water status and intensified root-to-shoot ABA signaling, resulting in improved intrinsic WUE (WUE i). Decreased soil water regimes increased plant WUE (WUE p) and leaf δ 13C, and the increased leaf δ 13C was due to reduced g s and/or higher specific leaf N content enhanced photosynthetic capacity. Leaf δ 18O and δ 13C further indicated that the significant increase in leaf δ 13C under the reduced water regimes was caused primarily by reductions in g s compared with N nutrition. Therefore, g s rather than N nutrition predominated regulation of plant WUE under fertigation. Moderate soil water regimes with sufficient N supply are recommended for fertigation in terms of achieving high fresh fruit yield, WUE and nutrient uptake.

KW - Abscisic acid

KW - Carbon isotopic composition

KW - Irrigation

KW - Nitrogen

KW - Oxygen isotopic composition

KW - Physiology

U2 - 10.1016/j.agwat.2018.07.020

DO - 10.1016/j.agwat.2018.07.020

M3 - Journal article

VL - 209

SP - 94

EP - 101

JO - Agricultural Water Management

JF - Agricultural Water Management

SN - 0378-3774

ER -

ID: 204467804