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Manuscripts in Review

Development and Stochastic Validation of a Parameterized Model of Maize Stalk Flexure and Buckling

June 08, 2023 12:20 PM
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


The Influence of Water Content on the Longitudinal Modulus of Elasticity of Maize Stalk Pith and Rind Tissues

June 08, 2023 12:33 PM
We quantify the influence of water content on the longitudinal modulus of elasticity of rind and pith tissues.
Brandon Sutherland, Kirsten Steele, Douglas Cook

Axial variation in flexural stiffness of plant stem segments: measurement methods and the influence of measurement uncertainty

June 08, 2023 12:17 PM
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

Stalk architecture is a stronger predictor of stalk lodging resistance than chemical composition

June 08, 2023 12:14 PM
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

Assessing axial and temporal effects of the leaf sheath on the flexural stiffness of large-grain stems

June 08, 2023 12:40 PM
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)

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

May 22, 2021 10:21 AM
CJ Stubbs, C McMahan, W Seegmiller, DD Cook, DJ Robertson (2020)

The effect of probe geometry on rind puncture resistance testing of maize stalks

May 22, 2021 10:21 AM
DD Cook, K Meehan, L Asatiani, DJ Robertson (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

May 22, 2021 10:21 AM
RS Sekhon, CN Joyner, AJ Ackerman, CS McMahan, DD Cook, ... (2020)

DARLING: a device for assessing resistance to lodging in grain crops

May 22, 2021 10:21 AM
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

May 22, 2021 10:21 AM
N Nelson, CJ Stubbs, R Larson, DD Cook (2019)

A general review of the biomechanics of root anchorage

May 22, 2021 10:21 AM
CJ Stubbs, DD Cook, KJ Niklas (2019)

Measuring the transverse Young’s modulus of maize rind and pith tissues

May 22, 2021 10:21 AM
CJ Stubbs, W Sun, DD Cook (2019)