数字农科院2.0

Evaluating the Performance of Winter Wheat Under Late Sowing Using UAV Multispectral Data

文献类型： 外文期刊

作者： Zhao, Yuanyuan;Wang, Hui;Wu, Wei;Sun, Yi;Wang, Ying;Zhang, Weijun;Wang, Jianliang;Wu, Fei;Maes, Wouter H.;Ding, Jinfeng;Li, Chunyan;Sun, Chengming;Liu, Tao;Guo, Wenshan

作者机构：

关键词： wheat;late sowing;multispectral;yield loss;tolerance evaluation

期刊名称： AGRONOMY-BASEL

ISSN：

年卷期： 2025 年 15 卷 10 期

页码：

收录情况： SCIE（2025版）

摘要： In the lower and middle sections of the Yangtze River Basin Region (YRBR) in China, challenges posed by climate change and delayed harvesting of preceding crops have hindered the timely sowing of wheat, leading to an increasing prevalence of late-sown wheat fields. This trend has emerged as a significant impediment to achieving high and stable production of wheat in this area. During the growing seasons of 2022-2023 and 2023-2024, an unmanned aerial vehicle (UAV)-based multispectral camera was used to monitor different wheat materials at various growth stages under normal sowing treatment (M1) and late sowing with increased plant density (M2). By assessing yield loss, the wheat tolerance to late sowing was quantified and categorized. The correlation between the differential vegetation indices (D-VIs) and late sowing resistance was examined. The findings revealed that the J2-Logistic model demonstrated optimal classification performance. The precision values of stable type, intermediate type, and sensitive type were 0.92, 0.61, and 1.00, respectively. The recall values were 0.61, 0.92, and 1.00. The mean average precision (mAP) of the model was 0.92. This study proposes a high-throughput and low-cost evaluation method for wheat tolerance to late sowing, which can provide a rapid predictive tool for screening suitable varieties for late sowing and facilitating late-sown wheat breeding.

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