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Wheat yield losses from pests and pathogens in China

文献类型： 外文期刊

作者： Zhang, Qingqing 1 ; Men, Xingyuan 3 ; Hui, Cang 4 ; Ge, Feng 1 ; Ouyang, Fang 1 ;

作者机构： 1.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Management Pest Insectsd, Beijing 100101, Peoples R China

2.Univ Chinese Acad Sci, CAS Ctr Excellence Biot Interact, Beijing 100049, Peoples R China

3.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China

4.Stellenbosch Univ, Dept Math Sci, Ctr Invas Biol, ZA-7602 Matieland, South Africa

5.African Inst Math Sci, Biodivers Informat Unit, ZA-7945 Cape Town, South Africa

关键词： Wheat; Food security; Agricultural management strategies; Pests and pathogens; Yield loss

期刊名称：AGRICULTURE ECOSYSTEMS & ENVIRONMENT （ 影响因子：5.567； 五年影响因子：6.064 ）

ISSN： 0167-8809

年卷期： 2022 年 326 卷

页码：

收录情况： SCI

摘要： Wheat is a main food source for more than 40% of the world's population, while pests and pathogens are widely recognized as a significant obstacle to food security. Assessing the impact of pests and pathogens on yield losses is therefore critical to maintaining global food supply. However, quantitative estimation of wheat yield losses is notoriously challenging. Here, we report on an experiment-based quantitative assessment of wheat yield losses in China caused by pests and pathogens from 2000 to 2018. We found that wheat yield losses caused by pests and pathogens in six main wheat planting regions (the Yellow and Huai River valleys, the middle and lower reaches of the Yangtze River, the Southwest China, the Loess Plateau, the Northeast China and the Xinjiang province) were 16.29%, 7.46%, 11.71%, 12.64%, 6.54% and 4.84%, respectively, of the regional yield. The proportions of yield losses caused by aphids, wheat mites, scab and sharp eyespot have been on the rise, while those of underground pests have declined. Wheat powdery mildews were shown to have increased in the Xinjiang province but declined in the Northeast China. Future breeding research should focus on varieties resistant to rising group like aphids, wheat mites, scab, sharp eyespot and powdery mildews. The greatest yield loss occurred in the Yellow and Huai River valleys which was also the place with the highest wheat yield. More efforts are needed to provide management measures on wheat health management in the Yellow and Huai River valleys. Our results provide an accurate assessment of wheat yield losses in main wheat production regions of China and help devise region-specific agricultural management strategies to secure food supply to an increasingly aging population.

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