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Film antitranspirants increase yield in drought stressed wheat plants by maintaining high grain number

Author

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  • Abdullah, Araz S.
  • Aziz, Moyassar Mohammed
  • Siddique, K.H.M.
  • Flower, K.C.

Abstract

We investigated the use of film-forming antitranspirants (AT) to reduce transpiration and alleviate the adverse effects of late-season drought on wheat (Triticum aestivum L.) growth and yield. Two experiments were conducted in a controlled-temperature glasshouse from April to November 2014, to compare two watering regimes (well watered and water deficit) and three AT treatments (unsprayed control, sprayed before boot swollen and sprayed before anthesis complete). We measured plant water use, transpiration rate, stomatal conductance and photosynthesis. Relative leaf turgor was measured in real time using a non-destructive method of leaf patch clamp pressure. Drought stress reduced daily water use, transpiration rate, stomatal conductance and leaf turgor in wheat plants after about four days. In contrast, these measurements rapidly declined soon after AT application in both well-watered and water-deficit plants. Nevertheless, once soil moisture deficit increased markedly, AT-treated water-deficit plants maintained significantly higher levels of photosynthesis than untreated plants. Drought stress reduced grain yield in unsprayed control plants by more than 40%, compared to well-watered control plants, mainly due to fewer grains per spike. In contrast, drought stress with AT application prior to the most drought-sensitive boot stage reduced yield by only 14%. These results suggest that AT has the potential to improve wheat yields with late-season drought, as is common in semiarid regions; although, more research is required to test the wider applicability of these results in field conditions.

Suggested Citation

  • Abdullah, Araz S. & Aziz, Moyassar Mohammed & Siddique, K.H.M. & Flower, K.C., 2015. "Film antitranspirants increase yield in drought stressed wheat plants by maintaining high grain number," Agricultural Water Management, Elsevier, vol. 159(C), pages 11-18.
    • Handle: RePEc:eee:agiwat:v:159:y:2015:i:c:p:11-18
    DOI: 10.1016/j.agwat.2015.05.018
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    References listed on IDEAS

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    1. Givi, J. & Prasher, S.O. & Patel, R.M., 2004. "Evaluation of pedotransfer functions in predicting the soil water contents at field capacity and wilting point," Agricultural Water Management, Elsevier, vol. 70(2), pages 83-96, November.
    2. Rüger, S. & Ehrenberger, W. & Arend, M. & Geßner, P. & Zimmermann, G. & Zimmermann, D. & Bentrup, F.-W. & Nadler, A. & Raveh, E. & Sukhorukov, V.L. & Zimmermann, U., 2010. "Comparative monitoring of temporal and spatial changes in tree water status using the non-invasive leaf patch clamp pressure probe and the pressure bomb," Agricultural Water Management, Elsevier, vol. 98(2), pages 283-290, December.
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    1. Mphande, Wiza & Farrell, Aidan D. & Grove, Ivan G. & Vickers, Laura H. & Kettlewell, Peter S., 2021. "Yield improvement by antitranspirant application in droughted wheat is associated with reduced endogenous abscisic acid concentration," Agricultural Water Management, Elsevier, vol. 244(C).
    2. Ruixia Chen & Lijian Zheng & Jinjiang Zhao & Juanjuan Ma & Xufeng Li, 2023. "Biochar Application Maintains Photosynthesis of Cabbage by Regulating Stomatal Parameters in Salt-Stressed Soil," Sustainability, MDPI, vol. 15(5), pages 1-15, February.
    3. Abbasi, Nima & Sohrabi, Yousef & Kiani, Hawre, 2023. "Using tragacanth gum mitigated the effects of drought stress on the black cumin (Nigella sativa) plant," Agricultural Water Management, Elsevier, vol. 287(C).
    4. Xiang, Jie & Vickers, Laura H. & Hare, Martin C. & Kettlewell, Peter S., 2022. "Evaluation of the concentration-response relationship between film antitranspirant and yield of rapeseed (Brassica napus L.) under drought," Agricultural Water Management, Elsevier, vol. 270(C).
    5. Joanna Kocięcka & Daniel Liberacki & Marcin Stróżecki, 2023. "The Role of Antitranspirants in Mitigating Drought Stress in Plants of the Grass Family ( Poaceae )—A Review," Sustainability, MDPI, vol. 15(12), pages 1-19, June.
    6. Mphande, Wiza & Kettlewell, Peter S. & Grove, Ivan G. & Farrell, Aidan D., 2020. "The potential of antitranspirants in drought management of arable crops: A review," Agricultural Water Management, Elsevier, vol. 236(C).
    7. AbdAllah, Ahmed M. & Mashaheet, Alsayed M. & Zobel, Richard & Burkey, Kent O., 2019. "Physiological basis for controlling water consumption by two snap beans genotypes using different anti-transpirants," Agricultural Water Management, Elsevier, vol. 214(C), pages 17-27.

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