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| Al-Ahmadi,Ameer; Subedi,Arjun; Choudhary,Ruplal; Fakhoury,Ahmad; Watson,Dennis. |
| ABSTRACT Previous studies have confirmed the potential of hyperspectral spectroscopy (HS) to detect charcoal rot toxin effect on soybean (Glycine max). However, there is no evidence that it can differentiate among difference responses to that effect. This research tested the potential of HS (900–2400 nm) to differentiate different responses to charcoal rot effect caused by the fungal pathogen Macrophomina phaseolina. Known susceptible ‘Pharaoh’ and resistant ‘Spencer’ cultivars of soybean seedlings at the V1 stage were tested, and HS reflectance was measured in each treatment at 0 h (just before toxin treatment), 24 h, and 36 h after toxin treatment. For both cultivars, reflectance generally decreased up to 10% over time for controls and increased for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyperspectral spectroscopy; Glycine Max; Charcoal rot; Ratio; Reflectance. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000100078 |
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