University of Idaho

Daniel J Robertson

Christopher J Stubbs

Andrew Stucker

Will Seegmiller

Taylor Spence

Austin R Bebee

Douglas Cook

Kate Seegmiller

George Clayton Bennett

An apparatus and embodiments of a method for using the apparatus to evaluate crop lodging resistance are disclosed. An exemplary apparatus includes a body having a height adjustable force bar coupled thereto and a force sensor configured to detect forces acting on the force bar. Further, the apparatus includes or is configured to be coupled to a movement mechanism that enables movement of the force bar through a plot of stems. The force sensor generates force signals that can be utilized to generate force data. The force data, along with stem density data, stem height data, force bar height data, can be input into one or more models to generate flexural stiffness data. The one or more models can include an Interacting Model and/or a Non-Interacting Model.

Apparatus and method for high throughput measurement of lodging resistance in crops

Certain disclosed method embodiments concern performing a stalk puncture test to determine force and displacement data. Plant features, such as rind thickness, stalk radius, stalk diameter, section modulus and/or integrative puncture score, primarily applicable to corn, sorghum, sunflower, wheat or rice, can be calculated using the force and displacement data. The calculated plant features are used to select plants for selective breeding to produce lodging-resistant crop hybrids. The present invention also provides embodiments of a hand-held puncture device that can be used to practice disclosed method embodiments.

Method and apparatus for analyzing stalk strength

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Moscow, ID, United States of America

Daniel J Robertson