Chunyang Yao, Xiaodong Zhang, Hanping Mao, Hongyan Gao and Qinglin Li 2020. A Rapid Diagnostic Grading System for Cucumber Downy Mildew Based on Visible Light - Hyperspectral Imaging System. JOURNAL OF ADVANCES IN AGRICULTURE. 11, (Jun. 2020), 108–121. DOI:https://doi.org/10.24297/jaa.v11i.8779.