Publications
Manuscripts in Review
Development and Stochastic Validation of a Parameterized Model of Maize Stalk Flexure and Buckling
A new model of the maize stalk that provides total, independent control over 51 geometric features. This will enable future sensitivity and optimization studies.
Michael Ottesen, Joseph Carter, Ryan Hall, Nan-Wei Liu, Douglas Cook
Michael Ottesen, Joseph Carter, Ryan Hall, Nan-Wei Liu, Douglas Cook
Publications
The Influence of Water Content on the Longitudinal Modulus of Elasticity of Maize Stalk Pith and Rind Tissues
We quantify the influence of water content on the longitudinal modulus of elasticity of rind and pith tissues.
Brandon Sutherland, Kirsten Steele, Douglas Cook
Brandon Sutherland, Kirsten Steele, Douglas Cook
Axial variation in flexural stiffness of plant stem segments: measurement methods and the influence of measurement uncertainty
It would seem easy to use multiple tests to solve for the axial variation of flexural stiffness along the length of a stem. As it turns out this approach is highly sensitive to measurement error!
Nelson N, Sutherland B, Yancey M, Liao CS Stubbs C, and Cook DD
Nelson N, Sutherland B, Yancey M, Liao CS Stubbs C, and Cook DD
Stalk architecture is a stronger predictor of stalk lodging resistance than chemical composition
Contrary to common perceptions, stalk chemistry has little influence on stalk strength. But morphology (architecture) has a major influence.
Robertson DJ, Brenton ZW, Kresovich S, and Cook DD
Robertson DJ, Brenton ZW, Kresovich S, and Cook DD
Assessing axial and temporal effects of the leaf sheath on the flexural stiffness of large-grain stems
The leaf sheath has a major influence on maize stalk flexibility that changes over time. A multivariate nonlinear statistical approach based on sigmoid curves was used to capture this effect.
J Hale, S Webb, N Hale, C Stubbs, DD Cook (2022)
J Hale, S Webb, N Hale, C Stubbs, DD Cook (2022)
Brace root phenotypes predict root lodging susceptibility and the contribution to anchorage in maize
AN Hostetler, L Erndwein, JW Reneau, W Cantera, A Stager, HG Tanner, ... (2021)
Integrated Puncture Score: force–displacement weighted rind penetration tests improve stalk lodging resistance estimations in maize
CJ Stubbs, C McMahan, W Seegmiller, DD Cook, DJ Robertson (2020)
The effect of probe geometry on rind puncture resistance testing of maize stalks
DD Cook, K Meehan, L Asatiani, DJ Robertson (2020)
Mapping spatially distributed material properties in finite element models of plant tissue using computed tomography
CJ Stubbs, R Larson, DD Cook (2020)
Maize brace roots provide stalk anchorage
JW Reneau, RS Khangura, A Stager, L Erndwein, T Weldekidan, ... (2020)
Field‐based mechanical phenotyping of cereal crops to assess lodging resistance
L Erndwein, DD Cook, DJ Robertson, EE Sparks (2020)
Stalk bending strength is strongly associated with maize stalk lodging incidence across multiple environments
RS Sekhon, CN Joyner, AJ Ackerman, CS McMahan, DD Cook, ... (2020)
DARLING: a device for assessing resistance to lodging in grain crops
DD Cook, W de la Chapelle, TC Lin, SY Lee, W Sun, DJ Robertson (2019)
Stalk Lodging: A Portable Device for Phenotyping Stalk Bending Strength of Maize and Sorghum
C Stubbs, DD Cook, W de la Chapelle, TC Lin, SY Lee, W Sun, C Joyner, ... (2019)
Apparatus and method for assessing plant stem strength
D Cook, D Robertson, M Julias, SY Lee (2019)
Measurement accuracy and uncertainty in plant biomechanics
N Nelson, CJ Stubbs, R Larson, DD Cook (2019)
A general review of the biomechanics of root anchorage
CJ Stubbs, DD Cook, KJ Niklas (2019)
Measuring the transverse Young’s modulus of maize rind and pith tissues
CJ Stubbs, W Sun, DD Cook (2019)