Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Yield Criteria for Ductile Materials under Plane Stress01:25

Yield Criteria for Ductile Materials under Plane Stress

250
In designing structural elements and machine parts using ductile materials, it is crucial to ensure that these components withstand applied stresses without yielding. Yielding is initially determined through a tensile test, which evaluates the material's response to uniaxial stress. However, tensile stress is insufficient when components face biaxial or plane stress conditions This condition requires advanced criteria to predict failure.
The Maximum Shearing Stress Criterion, also known as...
250
Plastic Behavior01:21

Plastic Behavior

319
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
319
Hooke's Law01:26

Hooke's Law

713
Hooke's law, a pivotal principle in material science, establishes that the strain a material undergoes is directly proportional to the applied stress, defined by a factor called the modulus of elasticity or Young's modulus.
713
Stress-Strain Diagram - Ductile Materials01:24

Stress-Strain Diagram - Ductile Materials

1.1K
The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
1.1K
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity01:15

Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

368
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
368
Strain and Elastic Modulus01:15

Strain and Elastic Modulus

4.2K
The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...
4.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Trophic cascades drive sustainability in the agricultural heritage rice-fish coculture system.

Current biology : CB·2026
Same author

Arbuscular mycorrhiza provides postanthesis benefits to maximize wheat grain yield and nitrogen concentration.

The New phytologist·2026
Same author

Resolving the Trade-Offs by Conservation Deep Tillage.

Global change biology·2026
Same author

Letter: Global Neurosurgery: An Overview.

Neurosurgery·2026
Same author

Does Posterior Fossa Decompression Disrupt Craniocervical Alignment in Chiari Patients?

World neurosurgery·2026
Same author

Trophic cascades drive sustainability in the agricultural heritage rice-fish coculture system.

Current biology : CB·2026

Related Experiment Video

Updated: Oct 19, 2025

Repeatable Stair-step Assay to Access the Allelopathic Potential of Weedy Rice Oryza sativa ssp.
09:00

Repeatable Stair-step Assay to Access the Allelopathic Potential of Weedy Rice Oryza sativa ssp.

Published on: January 28, 2020

7.4K

Allometry and Yield Stability of Cereals.

Jacob Weiner1, Yan-Lei Du2, Yi-Min Zhao2

  • 1Department of Plant and Environmental Science, University of Copenhagen, Frederiksberg, Denmark.

Frontiers in Plant Science
|September 27, 2021
PubMed
Summary

Crop yield stability depends on biomass production and allocation. Focusing on allocation, or reproductive allometry, reveals a trade-off between consistent yields and maximum yields, crucial for smallholder farmers.

Keywords:
allocationappropriate technologybreeding strategycrop growthsize dependencysmallholder farmers

More Related Videos

Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images
11:49

Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images

Published on: February 2, 2019

9.5K
Atomic Force Microscopy to Study the Physical Properties of Epidermal Cells of Live Arabidopsis Roots
05:51

Atomic Force Microscopy to Study the Physical Properties of Epidermal Cells of Live Arabidopsis Roots

Published on: March 31, 2022

2.3K

Related Experiment Videos

Last Updated: Oct 19, 2025

Repeatable Stair-step Assay to Access the Allelopathic Potential of Weedy Rice Oryza sativa ssp.
09:00

Repeatable Stair-step Assay to Access the Allelopathic Potential of Weedy Rice Oryza sativa ssp.

Published on: January 28, 2020

7.4K
Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images
11:49

Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images

Published on: February 2, 2019

9.5K
Atomic Force Microscopy to Study the Physical Properties of Epidermal Cells of Live Arabidopsis Roots
05:51

Atomic Force Microscopy to Study the Physical Properties of Epidermal Cells of Live Arabidopsis Roots

Published on: March 31, 2022

2.3K

Area of Science:

  • Agricultural Science
  • Plant Physiology
  • Evolutionary Ecology

Background:

  • Crop yield is determined by resource allocation to seeds and fruits.
  • Yield stability is the genotype's ability to buffer against environmental variations.
  • Current research prioritizes biomass production over biomass allocation for yield stability.

Purpose of the Study:

  • To define and investigate yield stability in crop plants.
  • To explore the role of biomass allocation patterns in yield stability.
  • To test the hypothesis that reproductive allometry drives yield stability.

Main Methods:

  • Defining yield stability through crop survival, growth, and biomass allocation.
  • Utilizing ecological theory and allometric models to analyze biomass allocation.
  • Reanalyzing data from two independent studies to validate findings.

Main Results:

  • Yield stability is influenced by both biomass production and its allocation to yield.
  • Reproductive allometry, the relationship between vegetative and reproductive biomass, significantly impacts yield stability.
  • A trade-off exists between a genotype's ability to yield consistently across conditions and its potential for maximum yield under optimal conditions.

Conclusions:

  • Yield stability in crops is analogous to bet-hedging in evolutionary ecology.
  • Understanding biomass allocation is critical for improving crop yield stability.
  • Developing crop varieties for smallholder farmers requires a shift in breeding objectives towards yield stability.