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Agronomy
Volume 15
Issue 2
10.3390/agronomy15020348
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Effect of Mixed Spraying of SA and ABA on the Growth and Development of Winter Oilseed Rape (Brassica napus L.) During the Post-Waterlogging Podding Period

by
Mingyu Shao
1,2,
Yejun He
1,2,
Xinran Han
1,2,
Hongyue Qu
1,2,
Xiaoyang Zhang
1,2,
Changqiang Chen
1,2,
Jiamin Zhang
1,2,
Qinxu Song
1,2,
Jinghua Zhou
3,
Yucheng Jie
1,2,4,* and
Hucheng Xing
1,2,4,*
1
Ramie Research Institute of Hunan Agricultural University, Changsha 410128, China
2
College of Agronomy, Hunan Agricultural University, Changsha 410128, China
3
Hunan Anxiang County Agricultural Extension Centre, Changde 415600, China
4
Hunan Provincial Engineering Technology Research Center of Grass Crop Germplasm Innovation and Utilization, Changsha 410128, China
*
Authors to whom correspondence should be addressed.
Agronomy 2025, 15(2), 348; https://doi.org/10.3390/agronomy15020348
Submission received: 14 January 2025 / Revised: 27 January 2025 / Accepted: 27 January 2025 / Published: 29 January 2025
(This article belongs to the Section Water Use and Irrigation)
Versions Notes

Abstract

Winter oilseed rape is particularly vulnerable to waterlogging stress during its growth and development stages, especially at the podding stage, leading to impaired photosynthesis, reduced antioxidant enzyme activity, and significant declines in yield and oil content. Previous studies have demonstrated that exogenous plant growth regulators, such as salicylic acid (SA) and abscisic acid (ABA), enhance crop resistance to abiotic stresses. Nevertheless, their combined application for winter oilseed rape recovery under waterlogging stress remains underexplored. In this study, a pot experiment was conducted to investigate the effects of SA, ABA, and their combination on the growth, photosynthesis, antioxidant enzyme activity, and yield of winter oilseed rape at the podding stage following waterlogging stress. The results showed that mixed spraying of SA and ABA significantly improved plant height, effective branching number, yield per plant, and thousand-grain weight of winter oilseed rape, surpassing the effects of individual treatments. Structural equation modeling revealed that mixed spraying enhanced yield components through direct improvements in photosynthesis and indirect regulation of antioxidant enzyme activities. This study is the first to systematically evaluate the role of mixed spraying of SA and ABA in mitigating waterlogging stress and restoring yield and quality in winter oilseed rape. This approach effectively alleviates the adverse effects of waterlogging and provides a valuable reference for post-waterlogging management of other crops. These results hold significant implications for addressing the impacts of climate change and ensuring global food security.
Keywords: oilseed rape; waterlogging stress; salicylic acid; abscisic acid; yield per plant oilseed rape; waterlogging stress; salicylic acid; abscisic acid; yield per plant

Share and Cite

MDPI and ACS Style

Shao, M.; He, Y.; Han, X.; Qu, H.; Zhang, X.; Chen, C.; Zhang, J.; Song, Q.; Zhou, J.; Jie, Y.; et al. Effect of Mixed Spraying of SA and ABA on the Growth and Development of Winter Oilseed Rape (Brassica napus L.) During the Post-Waterlogging Podding Period. Agronomy 2025, 15, 348. https://doi.org/10.3390/agronomy15020348

AMA Style

Shao M, He Y, Han X, Qu H, Zhang X, Chen C, Zhang J, Song Q, Zhou J, Jie Y, et al. Effect of Mixed Spraying of SA and ABA on the Growth and Development of Winter Oilseed Rape (Brassica napus L.) During the Post-Waterlogging Podding Period. Agronomy. 2025; 15(2):348. https://doi.org/10.3390/agronomy15020348

Chicago/Turabian Style

Shao, Mingyu, Yejun He, Xinran Han, Hongyue Qu, Xiaoyang Zhang, Changqiang Chen, Jiamin Zhang, Qinxu Song, Jinghua Zhou, Yucheng Jie, and et al. 2025. "Effect of Mixed Spraying of SA and ABA on the Growth and Development of Winter Oilseed Rape (Brassica napus L.) During the Post-Waterlogging Podding Period" Agronomy 15, no. 2: 348. https://doi.org/10.3390/agronomy15020348

APA Style

Shao, M., He, Y., Han, X., Qu, H., Zhang, X., Chen, C., Zhang, J., Song, Q., Zhou, J., Jie, Y., & Xing, H. (2025). Effect of Mixed Spraying of SA and ABA on the Growth and Development of Winter Oilseed Rape (Brassica napus L.) During the Post-Waterlogging Podding Period. Agronomy, 15(2), 348. https://doi.org/10.3390/agronomy15020348

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