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Yield improvement by antitranspirant application in droughted wheat is associated with reduced endogenous abscisic acid concentration

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  • Mphande, Wiza
  • Farrell, Aidan D.
  • Grove, Ivan G.
  • Vickers, Laura H.
  • Kettlewell, Peter S.

Abstract

Drought stress reduces seed crop yields in part by causing reproductive sterility associated with increased endogenous ABA. Application of the film antitranspirant, di-1-p-menthene, during reproductive-stage drought has been shown to ameliorate yield loss in wheat but the physiological processes involved are not understood. Using rain shelters to simulate Mediterranean-type terminal drought, we studied the possibility that application of the antitranspirant reduces both endogenous ABA concentration and the subsequent yield loss. Di-1-p-menthene was sprayed on droughted spring wheat plants (cv, Chilham) at 1.0 L/ha in two separate field experiments, at three growth stages between stem elongation and spike emergence in 2018; and at four growth stages between stem elongation and anthesis in 2019, with droughted but unsprayed plants serving as the control. Drought stress increased endogenous ABA but decreased yield. Di-1-p-menthene application reduced endogenous ABA concentration by 33% and 40%; and improved grain yield by 16% and 15% averaged across all growth stages in 2018 and 2019, respectively. The consistent effects of di-1-p-menthene in both years suggests that the mechanism of drought stress amelioration by the film antitranspirant is related to reduced endogenous ABA concentration during key growth stages.

Suggested Citation

  • 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).
    • Handle: RePEc:eee:agiwat:v:244:y:2021:i:c:s0378377420320758
    DOI: 10.1016/j.agwat.2020.106528
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    References listed on IDEAS

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    1. 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.
    2. 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).
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    Cited by:

    1. Wan, Wenliang & Zhao, Yanhui & Wang, Zijian & Li, Liulong & Jing, Jianguo & Lv, Zhaoyan & Diao, Ming & Li, Weihua & Jiang, Guiying & Wang, Xiao & Jiang, Dong, 2022. "Mitigation fluctuations of inter-row water use efficiency of spring wheat via narrowing row space in enlarged lateral space drip irrigation systems," Agricultural Water Management, Elsevier, vol. 274(C).
    2. 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.
    3. 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).
    4. Wan, Wenliang & Li, Liulong & Diao, Ming & Lv, Zhaoyan & Li, Weihua & Wang, Jiangli & Li, Zhaofeng & Jiang, Guiying & Wang, Xiao & Jiang, Dong, 2023. "Border effects enhance lodging resistance of spring wheat in narrowing-row-space enlarged-lateral-space drip irrigation patterns," Agricultural Water Management, Elsevier, vol. 287(C).

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