Assessing Hyperspectral Vegetation Indices Responses of Six Pigweed Species

• 作者: Reginald S. Fletcher
• 来源期刊: 美国植物学期刊(英文)
• 学科: 数学
• 关键词: HYPERSPECTRAL Palmer Amaranth Remote Sensing WEEDS
• 年，卷（期）: mgzwxqkyw_2020,（12）
• 页码范围: 1934-1948
• 页数: 15页
• 分类号: O17

摘要

Pigweeds (</span><i><span style="font-family:Verdana;">Amaranthus</span></i><span style="font-family:""><span style="font-family:Verdana;"> species), negatively impact crop production systems throughout the world. They are distinguished from each other using manual methods that are tedious and time-consuming to complete. Hyperspectral light reflectance properties of plant leaves and canopies have shown promise for detecting and mapping weeds in crop production systems. Vegetation indices derived from hyperspectral reflectance data enhance differences between plants, leading to better detection of them from other targets. The objective was to evaluate the biomass and structural index, the biochemical index, the red edge index, the water and moisture index, the light-use efficiency index, and the lignin cellulose index for measuring differences among six pigweed species: </span><i><span style="font-family:Verdana;">Amaranthus</span></i> <i><span style="font-family:Verdana;">albus</span></i><span style="font-family:Verdana;"> (L), </span><i><span style="font-family:Verdana;">A</span></i><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">hybridus</span></i><span style="font-family:Verdana;"> (L), </span><i><span style="font-family:Verdana;">A</span></i><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">palmeri</span></i><span style="font-family:Verdana;"> (S. Wats.), </span><i><span style="font-family:Verdana;">A</span></i><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">retroflexus</span></i><span style="font-family:Verdana;"> (L), </span><i><span style="font-family:Verdana;">A</span></i><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">spinosus</span></i><span style="font-family:Verdana;"> (L), and </span><i><span style="font-family:Verdana;">A</span></i><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">tuberculatus</span></i><span style="font-family:Verdana;