Association between unmanned aerial vehicle high‐throughput canopy phenotyping and soybean yield

天蓬 农学 产量(工程) 选择(遗传算法) 物候学 生物 粮食产量 相关系数 环境科学 数学 统计 植物 计算机科学 材料科学 冶金 生物化学 基因组学 人工智能 基因组 基因
作者
Cleiton Renato Casagrande,Gustavo César Sant’Ana,Anderson Rotter Meda,Alexandre Garcia,Pedro Crescêncio Souza Carneiro,Maicon Nardino,Aluízio Borém
出处
期刊:Agronomy Journal [Wiley]
卷期号:114 (3): 1581-1598 被引量:7
标识
DOI:10.1002/agj2.21047
摘要

Abstract Identifying agronomic traits correlated to grain yield can be very useful for soybean [ Glycine max (L.) Merr.] breeding, especially if these traits can be measured through unmanned aerial vehicle high‐throughput phenotyping rather than through manual measurements. The objective of the present study was to assess the association between canopy coverage and soybean grain yield through different statistical methodologies. A panel with 97 soybean genotypes was evaluated in two field experiments conducted in Paraná State, Brazil. Canopy coverage was determined by using an RGB camera coupled to a drone. Images taken during flights at phenological stages V3‐V4, V5‐V6, V7‐V8, and V9‐R1 were used to calculate canopy coverage based on the green pixel ratio in each experimental unit. There were significant genotype × environment interactions in all evaluated traits. Selective accuracy values (0.73–0.96) revealed indirect yield selection efficiency based on canopy coverage. High genetic correlation estimates (0.76) were observed between grain yield and canopy coverage at flowering in one of the assessed environments. These results were confirmed through genetic correlation coefficient decomposition in direct and indirect effects and of gain estimates presenting indirect selection. Thus, canopy coverage data remotely collected using drones to soybean indirect selection for grain yield can be a promising strategy to accelerate genetic gains in soybean breeding programs.
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