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Recovery from drought and saline stress in growth and physiology of sugarcane

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Abstract

Salinization is raising the adverse effects of drought stress in coastal areas because of freshwater shortage for irrigation. This study investigates the growth responses and recovery of sugarcane affected by individual and combined drought and saline stress at the early growth stage. The experiment was conducted with four treatments: control, drought, saline, and saline-drought stress. Drought and saline stress individually reduced the growth parameters of sugarcane including plant height, leaf number, leaf area, SPAD, and dry matter accumulation. The detrimental effects became severe as the combination of these stress. The recovery from drought and saline stress was observed especially in SPAD, and the dry weight of leaves and roots. The growth of the stalk was more sensitive to stress compared to leaf and root. Less recovery in biomass was recorded in severe stress treatments. This study may support the helpful information to build up the irrigation strategy for sugarcane in saline-drought stress areas.

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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

We are grateful for the financial support throughout the project T2021-01-02TĐ "Study on effects of saline and drought on growth, physiology of sugarcane and application of biochar to diminish the impact of saline and drought in sugarcane (Saccharum officinarum L.)”, which was funded by the Vietnam National University of Agriculture.

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Correspondence to Thai-Hoang Dinh or Ngoc-Thang Vu.

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Dinh, TH., Pham, HMO., Nguyen, VL. et al. Recovery from drought and saline stress in growth and physiology of sugarcane. Vegetos 37, 52–59 (2024). https://doi.org/10.1007/s42535-022-00553-6

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  • DOI: https://doi.org/10.1007/s42535-022-00553-6

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