Affiliation:
1. State Key Laboratory of Aridland Crop Science/College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
2. CSIR-Crops Research Institute, P.O. Box 3785, Kumasi 00233, Ghana
Abstract
(1) Background: Potato is the most important tuber crop in the world that can contribute to food security. However, the crop has been shown to be sensitive to drought and its yields decline significantly during successive periods of stress. Drought triggers a number of responses in potato, ranging from physiological changes to fluctuations in growth rates and yields. In light of global climate change, it is important to understand the effects of thiamethoxam on potato growth and yield under drought conditions. (2) Methods: The objective was to evaluate the impact of thiamethoxam on improving drought resistance and yield of potato under drought conditions. The drought-tolerant and sensitive-genotypes Qingshu No. 9 and Atlantic were used for a two–year pot experiment. Potato seeds were coated with 70% thiamethoxam before sowing (treatment group (T)), with a control group without treatment (NT). Two experimental treatments were applied: normal irrigation (ND) and drought stress (D). (3) Results: The results showed that root length, plant yield, chlorophyll content and superoxide dismutase (SOD) activity significantly increased under both genotypes, while malondialdehyde (MDA) and proline (Pro) content were reduced under thiamethoxam under drought stress. The best indicators were obtained in the comprehensive evaluation for the T–D treatment, suggesting that the application of thiamethoxam under drought stress was more effective than normal irrigation. (4) Conclusions: Our results suggest that the application of thiamethoxam improves potato growth, thereby increasing drought tolerance and potato yield. However, thiamethoxam is a neonicotinoid pesticide, and the limitation of this study is that it did not explore the ecological effects of thiamethoxam, which need to be systematically studied in the future. Moreover, considering the potential risks of thiamethoxam to the environment, specific agronomic measures to effectively degrade thiamethoxam residue should be taken when it is applied in agricultural production.
Funder
State Key Laboratory of Aridland Crop Science of China
National Natural Science Foundation of China
Gansu Science and Technology fund
Central Government Guidance for Local Scientific and Technological Development Projects
Reference57 articles.
1. Crops that feed the world 8: Potato: Are the trends of increased global production sustainable?;Birch;Food Secur.,2012
2. On Processing Potato. 4. Survey of the Nutritional and Sensory Value of Products and Dishes;Haverkort;Potato Res.,2023
3. Potato Production, Usage, and Nutrition—A Review;Khalid;Crit. Rev. Food Sci. Nutr.,2016
4. The rise of Asia as the centre of global potato production and some implications for industry;Scott;Potato J.,2012
5. Strategy of Potato as Staple Food: Significance, Bottlenecks and Policy Suggestions;Lu;J. Huazhong Agric. Univ. (Soc. Sci. Ed.),2015
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