ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Crop and Product Physiology
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1607055
This article is part of the Research TopicPlant Responses to Environmental ChangeView all 8 articles
Differential Adaptations of Japonica Rice to Submergence Stress during the Tillering Stage under Various Seedling Cultivation and Transplanting Methods
Provisionally accepted
- 1Anhui University of Science and Technology, Huainan, China
- 2Anhui Science and Technolology University, ,233100., Chuzhou, China
- 3Anhui xin fu xiang tian Ecological Agriculture Co. Ltd, Ma’anshan, China
- 4Ma’anshan Agriculture and Rural Bureau, Ma’anshan, China
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This study aimed to investigate the differential responses of rice to submergence stress during the tillering stage under diverse combinations of seedling cultivation and transplanting methods. The objective was to provide a theoretical foundation for evaluating rice submergence tolerance . Nanjing 46 was used as the test material, and five combinations of seedling cultivation and transplanting methods (Y1 -Y5) were established. Submergence durations included 0 days (B0), 4 days (B1), 7 days (B2), and 10 days (B3), resulting in a total of 20 treatments. Submergence tolerance was evaluated by analyzing agronomic traits, physiological indices, and yield data. The results indicated that submergence could retard rice growth, leading to leaf yellowing, senescence, and overall plant weakness. The retardation became more prominent as the submergence duration increased. Significant differences in plant height were observed among different seedling cultivation methods and submergence duration treatments. More than two -thirds of the tillers could survive within seven days of complete submergence during the tillering stage. Submergence influenced the activities of peroxidase (POD) and superoxide dismutase (SOD), the content of malondialdehyde (MDA), the content of proline (PRO), and the Soil and Plant Analyzer Development (SPAD) value. Significant differences in yield and submergence tolerance were detected among different seedling cultivation methods. The study concluded that without special measures, submergence for up to seven days could still preserve the original plants and maintain a certain yield level. With appropriate remedial techniques and enhanced management, satisfactory yields could still be achieved. Among the various seedling cultivation and transplanting methods, the direct seeding method exhibited the poorest submergence tolerance, while the hard -ground dry nursery substrate micro -sprinkler tray seedlings combined with machine transplanting performed the best.
Keywords: tillering, cultivation, Tolerance;, rice, submergence
Received: 07 Apr 2025; Accepted: 29 May 2025.
Copyright: © 2025 Duan, Zhang, Ai, Feng, Zhou, Liu, Wang and Fang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Sumei Duan, Anhui University of Science and Technology, Huainan, China
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