Mapping Spatially Distributed Material Properties in Finite Element Models of Plant Tissue Using Computed Tomography

Stubbs, Christopher J.; Larson, Ryan; Cook, Douglas D.

doi:10.1101/2020.02.27.968651

Cited by 7 publications

(8 citation statements)

References 8 publications

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“…In addition, the authors were primarily interested in the problem of late season stalk lodging which occurs when stalks are fully mature and dry. Drying stalks prior to testing is in line with other studies performed on late season lodging [14,29,32,[34][35][36][37][38]. Another key advantage of using dried stalks is that their material properties do not change over time thus enabling storage of stalk samples.…”

Section: Experimental Materialssupporting

confidence: 66%

“…Thus, using rind penetration resistance as a selective breeding metric can produce stalks with a structurally disadvantageous morphology. In other words, rind penetration measurements do not measure or account for cross-sectional geometries or the spatial distribution of material stiffness within the plant, both of which are known to be highly correlated with stalk lodging resistance [32,35].…”

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confidence: 99%

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Integrated Puncture Score: force–displacement weighted rind penetration tests improve stalk lodging resistance estimations in maize

et al. 2020

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Background: Stalk lodging (breaking of agricultural plant stalks prior to harvest) is a multi-billion dollar a year problem. Rind penetration resistance tests have been used by plant scientists and breeders to estimate the stalk lodging resistance of maize for nearly a hundred years. However, the rind puncture method has two key limitations: (1) the predictive power of the test decreases significantly when measuring elite or pre-commercial hybrids, and (2) using rind penetration measurements as a breeding metric does not necessarily create stronger stalks. In this study, we present a new rind penetration method called the Integrated Puncture Score, which uses a modified rind penetration testing protocol and a physics-based model to provide a robust measure of stalk lodging resistance. Results: Two datasets, one with a diverse array of maize hybrids and one with only elite hybrids, were evaluated by comparing traditional rind penetration testing and the Integrated Puncture Score method to measurements of stalk bending strength. When evaluating the diverse set of hybrids, both methods were good predictors of stalk bending strength (R 2 values of 0.67). However, when evaluating elite hybrids, the Integrated Puncture Score had an R 2 value of 0.74 whereas the traditional method had an R 2 value of 0.48. Additionally, the Integrated Puncture Score was able to differentiate between the strongest and weakest hybrids in the elite hybrid data set whereas the traditional rind penetration method was not. Additional experiments revealed strong evidence in favor of the data aggregation steps utilized to compute the Integrated Puncture Score. Conclusions: This study presents a new method for evaluating rind penetration resistance that highly correlates with stalk bending strength and can possibly be used as a breeding index for assessing stalk lodging resistance. This research lays the foundation required to develop a field-based high-throughput phenotyping device for stalk lodging resistance.

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Section: Experimental Materialssupporting

confidence: 66%

mentioning

confidence: 99%

Integrated Puncture Score: force–displacement weighted rind penetration tests improve stalk lodging resistance estimations in maize

et al. 2020

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“…Drying stalks prior to testing is in line with other studies performed on late season lodging [5,20,23,24,28,31,32,33]. Another key advantage of using dried stalks is that their material properties do not change over time thus enabling storage of stalk samples.…”

Section: Experimental Materialssupporting

confidence: 66%

“…Thus, using rind penetration resistance as a selective breeding metric can produce stalks with a structurally disadvantageous morphology. In other words, rind penetration measurements do not measure or account for crosssectional geometries or the spatial distribution of material stiffness within the plant, both of which are known to be highly correlated with stalk lodging resistance [23,24].…”

Section: Introductionmentioning

confidence: 99%

Integrated Puncture Score: Force-Displacement Weighted Rind Penetration Tests Improve Stalk Lodging Resistance Estimations in Maize

Stubbs

McMahan

Seegmiller

et al. 2020

Preprint

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Background: Stalk lodging (breaking of agricultural plant stalks prior to harvest) is a multi-billion dollar a year problem. Rind penetration resistance tests have been used by plant scientists and breeders to estimate the stalk lodging resistance of maize for nearly a hundred years. However, the rind puncture method has two key limitations: (1) the predictive power of the test decreases significantly when measuring elite or pre-commercial hybrids, and (2) using rind penetration measurements as a breeding metric does not necessarily create stronger stalks. In this study, we present a new rind penetration method called the Integrated Puncture Score, which uses a modified rind penetration testing protocol and a physics-based model to provide a robust measure of stalk lodging resistance. Results: Two datasets, one with a diverse array of maize hybrids and one with only elite hybrids, were evaluated by comparing traditional rind penetration testing and the Integrated Puncture Score method to measurements of stalk bending strength. When evaluating the diverse set of hybrids, both methods were good predictors of stalk bending strength (R2 values of 0.67). However, when evaluating elite hybrids, the Integrated Puncture Score had an R2 value of 0.74 whereas the traditional method had an R2 value of 0.48. Additionally, the Integrated Puncture Score was able to differentiate between the strongest and weakest hybrids in the elite hybrid data set whereas the traditional rind penetration method was not. Additional experiments revealed strong evidence in favor of the data aggregation steps utilized to compute the Integrated Puncture Score. Conclusions: This study presents a new method for evaluating rind penetration resistance that highly correlates with stalk bending strength and can possibly be used as a breeding index for assessing stalk lodging resistance. This research lays the foundation required to develop a field-based high-throughput phenotyping device for stalk lodging resistance.

show abstract

Section: Introductionmentioning

confidence: 99%

Integrated Puncture Score: Force-Displacement Weighted Rind Penetration Tests Improve Stalk Lodging Resistance Estimations in Maize

Stubbs

McMahan

Seegmiller

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Background: Stalk lodging (breaking of agricultural plant stalks prior to harvest) is a multi-billion dollar a year problem. Rind penetration resistance tests have been used by plant scientists and breeders to estimate the stalk lodging resistance of maize for nearly a hundred years. However, the rind puncture method has two key limitations: (1) the predictive power of the test decreases significantly when measuring elite or pre-commercial hybrids, and (2) using rind penetration measurements as a breeding metric does not necessarily create stronger stalks. In this study, we present a new rind penetration method called the Integrated Puncture Score, which uses a modified rind penetration testing protocol and a physics-based model to provide a robust measure of stalk lodging resistance.Results: Two datasets, one with a diverse array of maize hybrids and one with only elite hybrids, were evaluated by comparing traditional rind penetration testing and the Integrated Puncture Score method to measurements of stalk bending strength. When evaluating the diverse set of hybrids, both methods performed well, but when evaluating the elite hybrids, the integrated Puncture Score outperformed the traditional rind penetration method. Additionally, the Integrated Puncture Score was able to differentiate the best- and worst-performing hybrids, even in the elite hybrid data set. Additional experiments revealed strong evidence in favor of the data aggregation steps utilized to compute the Integrated Puncture Score.Conclusions: This study presents a new method for evaluating rind penetration resistance that highly correlates with stalk bending strength and can possibly be used as a breeding index for assessing stalk lodging resistance. This research lays the foundation required to develop a field-based high-throughput phenotyping device for stalk lodging resistance.

show abstract

Mapping Spatially Distributed Material Properties in Finite Element Models of Plant Tissue Using Computed Tomography

Cited by 7 publications

References 8 publications

Integrated Puncture Score: force–displacement weighted rind penetration tests improve stalk lodging resistance estimations in maize

Integrated Puncture Score: force–displacement weighted rind penetration tests improve stalk lodging resistance estimations in maize

Integrated Puncture Score: Force-Displacement Weighted Rind Penetration Tests Improve Stalk Lodging Resistance Estimations in Maize

Integrated Puncture Score: Force-Displacement Weighted Rind Penetration Tests Improve Stalk Lodging Resistance Estimations in Maize

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