Author:
Nakashima Taiken,Tomobe Haruka,Morigaki Takumi,Yang Mengfan,Yamaguchi Hiroto,Kato Yoichiro,Guo Wei,Sharma Vikas,Kimura Harusato,Morikawa Hitoshi
Abstract
AbstractMaize is the world's most produced cereal crop, and the selection of maize cultivars with a high stem elastic modulus is an effective method to prevent cereal crop lodging. We developed an ultra-compact sensor array inspired by earthquake engineering and proposed a method for the high-throughput evaluation of the elastic modulus of maize cultivars. A natural vibration analysis based on the obtained Young’s modulus using finite element analysis (FEA) was performed and compared with the experimental results, which showed that the estimated Young’s modulus is representative of the individual Young’s modulus. FEA also showed the hotspot where the stalk was most deformed when the corn was vibrated by wind. The six tested cultivars were divided into two phenotypic groups based on the position and number of hotspots. In this study, we proposed a non-destructive high-throughput phenotyping technique for estimating the modulus of elasticity of maize stalks and successfully visualized which parts of the stalks should be improved for specific cultivars to prevent lodging.
Funder
Japan Society for the Promotion of Science
Publisher
Springer Science and Business Media LLC