biostudies-literatureAnisimov ARussian Science Foundation32https://www.ebi.ac.uk/biostudies/studies/S-EPMC11932232biostudies-literatureUnknown8(2)Biomechanical parameters of plant tissues and organs are increasingly recognized as key factors in plant development and application, increasing the demand for convenient devices for their study. The paper presents an original device for performing a three-point bending test using the inverse method, which is a modification of the classical (straight) three-point test. The designed device was tested in experiments to determine the modulus of elasticity of flax plant stems, and the results were compared with data obtained using the vibration method and the straight three-point bending test on a commercial instrument. Due to the high sensitivity associated with its design features, the device for the inverse three-point bending test is characterized by being able to adequately measure elastiMethods and protocolsUsing the Inverse Three-Point Bending Test to Determine Mechanical Properties of Plant Stems.PMC1193223224-14-00383Suslov MAnisimov AChernova TGorshkova TPetrova AGorshkov OfalseUsing the Inverse Three-Point Bending Test to Determine Mechanical Properties of Plant Stems.Biomechanical parameters of plant tissues and organs are increasingly recognized as key factors in plant development and application, increasing the demand for convenient devices for their study. The paper presents an original device for performing a three-point bending test using the inverse method, which is a modification of the classical (straight) three-point test. The designed device was tested in experiments to determine the modulus of elasticity of flax plant stems, and the results were compared with data obtained using the vibration method and the straight three-point bending test on a commercial instrument. Due to the high sensitivity associated with its design features, the device for the inverse three-point bending test is characterized by being able to adequately measure elasti2025-01-01T00:00:00Z2025 Mar2025-07-10T03:08:37.717Z2025-07-10T03:08:37.717ZS-EPMC119322324012625010.3390/mps8020032