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A Place to Call Home
Meeting the Needs of Perennial Plants
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Advanced Backcross Breeding
This lesson is a detailed explanation of the backcross breeding process. Variations based on whether backcrossing is performed with dominant, recessive, or multiple traits are discussed. Calculations ...
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Analysis of Augmented Block Design Using R Part 1: An Introduction to an Augmented Design Approach in Plant Breeding
Ashu Guru
University of Nebraska Raikes School
Deana Namuth-Covert
University of Nebraska Dept of Agronomy and Horticulture
2014
When planning any science research project to gain ...
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Analysis of Augmented Block Design Using R Part 2: Analyzing Treatments as Fixed Effects
Ashu Guru
University of Nebraska Raikes School
Deana Namuth-Covert
University of Nebraska Dept of Agronomy and Horticulture
2014
When planning any science research project to gain ...
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Analysis of Augmented Block Design Using R Part 3: Analyzing Treatments as Random Effects
Ashu Guru
University of Nebraska Raikes School
Deana Namuth-Covert
University of Nebraska Dept of Agronomy and Horticulture
2014
When planning any science research project to gain ...
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Aparición de resistencia a herbicidas, en una población de malezas
El uso repetido del mismo herbicida, puede provocar poblaciones de malezas que consisten de biotipos susceptibles (S) que son controlados y biotipos resistentes (R), que escapan al control para produc...
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Aplicaciones prácticas de la fisiología de los herbicidas en las plantas
Esta lección se focaliza en el impacto de las características de la planta y el herbicida, importantes para determinar el desempeño del herbicida. Se usarán imágenes visuales para ilustrar varios...
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Appearance of Herbicide Resistance in a Weed Population
Through the repeated use of the same herbicide, weed populations can consist of susceptible (S)-biotypes that are controlled and herbicide resistant (R)-biotypes that are left behind to produce and re...
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Application of Molecular Marker Technology to QA/QC in Plant Breeding
Quality Assurance and Quality Control (QA QC) are key for developing effective plant breeding programs which make the most impact for the resources available. Molecular markers can greatly enhance Qua...
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Asteraceae
This lesson contains information about the Asteraceae family.
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Auxin and Auxinic Herbicide Mechanism(s) of Action - Part 1 - Introduction
The selective control of broadleaf weeds in cereal grain crops by auxinic herbicides has made this group one of the most widespread and important herbicide families in use. These herbicides were the f...
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Auxin and Auxinic Herbicide Mechanism(s) of Action - Part 2 - Advanced
The selective control of broadleaf weeds in cereal grain crops by auxinic herbicides has made this group one of the most widespread and important herbicide families in use. These herbicides are thoug...
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Backcross Breeding 1 - Basic Gene Inheritance
This lesson reviews the basics of gene inheritance. It compares plants that are homozygous, heterozygous, and hemizygous for an allele and how gene expression is affected by the dominance of an allele...
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Backcross Breeding 2 - The Backcrossing Process
This lesson discusses the final stage of developing genetically engineered crops. The need for backcrossing, and the steps
of this breeding method are described. Yield lag, yield drag, and gene stac...
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Backyard Mystery
Backyard Mystery is an NSF-funded bio-STEM curriculum. Materials target National Science Education Content Standards in Life Sciences for Grades 5 through 7.
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Basic Techniques of Plant Tissue Cultures
A description of techniques used to successfully grow tissue cultures, including several videos of specific steps.
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Breeding for Grain Quality Traits: The challenges of measuring phenotypes and identifying genotypes.
An introduction to methods and difficulties of plant breeding. Comparisons are made between corn, proso millelt, wheat, and sorghum.
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Breeding for Resistance in California Strawberry
to Verticillium Dahliae
This e-library lesson will focus on breeding resistant strawberries to the fungus Verticillium dahliae, common name Verticillium wilt. This is a serious fungal disease that can result in a loss of 50%...
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Case of the Drought Resistant Genetically Engineered Corn Plant
This scenario accompanies the
online lesson, "Transpiration - Water Movement Through Plants", and is
designed to allow you to apply the concepts learned in that lesson to a
real-life problem.
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Cellular Absorption of Herbicides
Before a herbicide can kill a plant, it must be absorbed by the plant’s leaves or roots and enter a cell which possesses the metabolic pathway the herbicide targets. This lesson follows the fate o...
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Chi-Square Test for Goodness of Fit in a Plant Breeding Example
In plant breeding and genetics research, plant breeders establish a hypothesis to explain how they think a particular trait is inherited, such as if it is due to one gene with complete dominance, an i...
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Clasificación de los herbicidas
Esta lección se enfoca en entender el sistema de clasificación en el cual están organizados los herbicidas. Terminología como clasificación, jerarquía de clasificación, ejemplos de clasificaci...
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Corn Breeding: Lessons From the Past
This is the first in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with forma...
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Corn Breeding: Introduction to Concepts in Quantitative Genetics
This is the second in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with form...
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Corn Breeding: Mass Selection
This is the fourth in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with forma...
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Corn Breeding: Types of Cultivars
This is the third in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with formal...
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Corn Flowers and Hybrid Seeds
An explanation of how hybrid corn is grown, and how the monoecious nature of corn is used to manipulate the cross-breeding.
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Corn Rootworm - Part 1: Description of Corn Rootworm and Other Early Season Corn Pests
This lesson will discuss the corn rootworm complex, which consists of
the northern, western, and southern corn rootworm, focusing on the
northern and western species. The information in this lesson ...
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Corn Rootworm - Part 2: Corn Rootworm Management
This lesson will discuss economic thresholds and management options
related to the corn rootworm complex consisting of the northern,
western, and southern corn rootworm, with emphasis on the norther...
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Corn Rootworm: Small insect, big impact
Corn rootworm can cause devastating effects to corn yields. The focus of this lesson is the ongoing research of scientists as they work to combat the resistance of Corn rootworm to control measures....
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Correlation Using the R Statistical Package - Part 1: An Introduction to the Canopy Spectral Reflectance (CSR) Experiment
Ashu Guru
University of Nebraska Raikes School
Deana Namuth-Covert
University of Nebraska Dept of Agronomy and Horticulture
2014
When conducting research, sometimes it is important...
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Correlation Using the R Statistical Package - Part 2: Data Preparation
Ashu Guru
University of Nebraska Raikes School
Deana Namuth-Covert
University of Nebraska Dept of Agronomy and Horticulture
2014
In the first module we looked at the fiel...
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Correlation Using the R Statistical Package - Part 3: R Functions and Scripts
Ashu Guru
University of Nebraska Raikes School
Deana Namuth-Covert
University of Nebraska Dept of Agronomy and Horticulture
2014
In this lesson module we will calculate t...
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Cytoplasmic Inheritance
This lesson was designed for individuals who have some knowledge of science but do not have formal training in genetics. However, cytoplasmic inheritance is not as well known as nuclear genetics so ...
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Defoliation - Grazing Response
A scenario to accompany 'Perennial Plant Response to Defoliation" and provide an opportunity to apply the concepts learned in that lesson to a real-life problem
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Deliberate Mechanical Defoliation of Perennials
A scenario to accompany 'Perennial Plant Response to Defoliation" and provide an opportunity to apply the concepts learned in that lesson to a real-life problem
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Descripción de la Ingeniería Genética
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Descubrimiento y selección de herbicidas
Históricamente, los herbicidas se han descubierto por selección al azar de la actividad sobre malezas de interés, con colecciones de químicos. Aunque totalmente empírico, este enfoque ha sido s...
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DNA and DNA Extraction
This lesson discusses what DNA is and how it relates to genes and chromosomes. How and why DNA is extracted in
the genetic engineering process is also covered.
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DNA for Dinner 4-H Curriculum
Curriculum Authors: Peggy G. Lemaux and Barbara Alonso. University of California, Berkeley
It is “(DNA for) Dinner” Time! The five lessons in this curriculum, designed for fifth through eigh...
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Electrophoresis: How scientists observe fragments of DNA
Describes gel electrophoresis and how the method is used in molecular genetic analysis.
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Embryogenesis
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Erosion
Soil erosion is a global problem. Each year, erosion costs billions of dollars in loss of land productivity, damage from soil sediment deposition and subsequent restoration costs, and harm to plant, a...
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Erosion Control Measures
This lesson will discuss erosion control practices in the agricultural and construction environments. The impact of erosion management practices will be demonstrated with exercises using a USLE calcul...
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European Corn Borer and Bacillus thuringiensis
This lesson contains information about the history, life cycle, and host plants of the European corn borer and information relating to the history and biology of Bacillus thuringiensis.
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Evolution
This lesson describes an evolution story that is unfolding today in farmers fields around the world.
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Flowering Principles
What is a "flower" and what are its structures? How do the male and female parts operate to produce seed? Monoecious versus dioecious; perfect versus imperfect.
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Foliar Absorption and Phloem Translocation
Herbicides must be absorbed into plants in order to be effective. Herbicide
absorption can occur through leaves, roots or both. The process by which herbicides
kill weeds, called mode of actio...
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Gene Cloning
This lesson covers the utilization of gene cloning to isolate and copy a specific gene of interest. The transformation of
bacteria with plasmids containing antibiotic resistance genes to make gene l...
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Gene Cloning Part 1: The Mechanics of Recombinant DNA
This lesson describes how DNA molecules can be recombined to make recombinant DNA and how special DNA molecules called plasmids allow scientists to clone genes.
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Gene Cloning Part 2: Making and Screening Gene Libraries
This lesson teaches how a specific gene can be identified from among the thousands of genes that can be cloned from an organism.
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Gene Design 1 - Gene Regions
This lesson describes the three gene regions and their roles in gene expression. It also discusses how the regions of a gene
can be altered to obtain desired trait expression.
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Gene Design 2 - Gene Constructs
This lesson builds upon the gene region lesson discussing the gene construct of currently used hybrids and explaining how
these combinations result in a particular gene expression.
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Gene Expression Part 1: Reading Genes to Make Proteins
This lesson describes the steps involved in a cell as DNA sequence information is read to make RNA and RNA is read to make proteins.
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Gene Expression Part 2: Expression of Herbicide Resistant ALS Genes in Plants
This lesson describes how changes in the DNA sequence of a gene can alter the synthesis of a protein and thus influence traits such as herbicide resistance.
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Golden Rice
This article offers basic knowledge about the origination of Golden Rice, including some basic concepts of rice physiology and genetic. This article is aimed at helping college students, rice growers ...
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Greening Up the Greens - Transpiration Application Scenario
A scenario to accompany the online lesson, 'Transpiration - Water Movement Through Plants'.
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Herbicidas que Actúan A través de la Fotosíntesis
En esta lección se examinarán los herbicidas que afectan los procesos celulares relacionados con la utilización de la luz, causando así daños a las plantas. Existen cuatro mecanismos básicos que...
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Herbicide Classification
This lesson focuses on understanding the classification system into
which herbicides are organized. Terms of classification, classification
hierachy, examples of classification and a brief overview ...
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Herbicide Discovery and Screening
Historically, herbicides have been discovered by randomly screening collections of chemicals for activity on target weeds. While totally empirical, this approach has been surprisingly successful and ...
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Herbicide Resistance: Mechanisms, Inheritance, and Molecular Genetics
Explanation of the biochemical mechanisms and genetics of herbicide-resistance in weeds and the management and spread of herbicide-resistant weeds in relationship to the biochemical mechanisms and inh...
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Herbicides That Act Through Photosynthesis
This lesson will examine herbicides that adversely affect light-related processes, thereby causing damage to plants. There are four basic mechanisms that will be studied in this class of agents: her...
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High School Quiz, Agronomy
A brief high school level quiz on Agronomy.
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High School Quiz, Horticulture
A brief high school level quiz of horticulture.
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High School Tree Identification Quiz
A brief high school level tree identification quiz.
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Inhibidores de la Síntesis de Aminoácidos Aromáticos
En esta lección se detallarán los procesos bioquímicos que son afectados por los herbicidas que inhiben la síntesis de aminoácidos en las plantas. Se describirá también la importancia de los am...
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Inhibitors of Aromatic Amino Acid Biosynthesis
This lesson will detail the biochemical mechanisms that are affected by herbicides which inhibit a plant’s ability to synthesize amino acids. The significance of amino acids and proteins will also b...
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Inhibitors of Branched Chain Amino Acid Biosynthesis
Herbicides that inhibit the production of the branched chain amino acids valine, leucine and isoleucine are used for total vegetation management and selective weed control in a wide variety of crops....
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Inhibitors of Fatty Acid Synthesis and Elongation
Fatty acid synthesis and fatty acid elongation are two parts of a critically important pathway in plants. The endproducts are essential components of cell membranes, waxes, and suberin. Two chemical f...
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International Plant Protection Convention (IPPC)
Overview of the International Plant Protection Convention (IPPC). The eLesson will explain the key elements of the IPPC and the importance of preventing pest spread and establishment as a result of th...
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International Treaty on Plant Genetic Resources for Food and Agriculture
Overview of the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA). The eLesson will explain the key elements of the ITPGRFA and the importance of having access to gene...
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International Union for the Protection of New Varieties of Plants (UPOV)
Overview of the International Union for the Protection of New Varieties of Plants (UPOV). The eLesson will explain the key elements of the 1991 UPOV Convention and the importance of intellectual prope...
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Introduction to Biofuel: Perennial Grasses as a Feedstock
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Introduction to Experimental Design
Marcos Malosetti and Fred van Eeuwijk (with contributions from Saskia Burgers, Gerrit Gort, and Bas Engel) Biometris, Wageningen UR
Martin M. Matute: Montana State University; Plant Science/Pathol...
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Just the facts
Description of the fundamental concepts of trait inheritance in sexually reproducing species.
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Kid Quiz, Agronomy
A brief elementary school level quiz on agronomy.
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Kid Quiz, Horticulture
A brief elementary school level quiz on horticulture.
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Kids Tree Identification Quiz
A brief elementary school level tree identification quiz.
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La Interacción de la Luz con las Biomoléculas
En esta lección se describe la naturaleza de la luz, la energía de los fotones y como dicha energía puede ser transferida a las biomoléculas. Se describen también tanto los procesos benéficos c...
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La Transpiración - Movimiento del Agua a Través de las Plantas
La transpiración es la pérdida de agua en forma de vapor por las plantas. El agua es absorbida del suelo por las raíces y transportada en forma líquida por el xilema hacia las hojas. En las hojas,...
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Linkage - Part 1
Learn about the inheritance of traits that are controlled by independent genes, linked genes and pleiotropic genes. Examine the key events in meiosis, calculate basic map distances.
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Linkage - Part 2
Learn to make predictions about inheritance using map unit distances and genetic markers, assemble maps from multiple-point linkage data, define the relationship between linkage maps, linkage groups a...
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Los Pigmentos Vegetales y la Fotosíntesis
En esta lección se examinarán las dos principales clases de pigmentos fotosintéticos: las clorofilas y los carotenoides. Se analizarán sus estructuras bioquímicas y su biosíntesis, y se explica...
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Manure Phosphorus and Surface Water Protection I: Basic Concepts of Soil and Water P
This lesson focuses on the process of eutrophication; the relationship between land application of manure and soil phosphorus (P) dynamics on P delivery to surface waters; and on the P dynamics in ...
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Manure Phosphorus and Surface Water Protection II: Field and Management Factors
This lesson describes how source factors, including soil characteristics and management practices, affect phosphorus (P) delivery to surface waters; and also discusses how crop producers can control...
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Manure Phosphorus and Surface Water Protection III: Transport Factors
This lesson addresses transport factors that may contribute to phosphorus (P) delivery to surface waters. Erosion, runoff, subsurface flow, drainage, and distance to surface water are the main fact...
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Manure Phosphorus and Surface Water Protection IV: Assessment of the Risk of Agricultural P Delivery
Addresses the assessment of potential for P delivery to surface waters resulting from the interaction of the source and transport factors addressed in Lessons II and III. The basic concepts and appl...
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Marker-Assisted Selection
A method of selecting desirable individuals in a breeding scheme based on DNA molecular marker patterns instead of, or in addition to, their trait values.A tool that can help plant breeders select mor...
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MB1 - Molecular Breeding: the use of molecular markers for efficient crop improvement
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MB2 - Selection of Markers for Molecular Breeding
Theresa Fulton
Cornell University
Martin Matute
Montana State University,
Dept of Plant Science and Plant Pathology
Deana Namuth-Covert
University of Nebraska-Lincoln,
Dept of Agrono...
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MB3 Genetic Diversity & Germplasm Selection
Theresa Fulton
Cornell University, Dept of Plant Breeding
Martin Matute
Montana State University, Dept of Plant Science and Plant Pathology
Deana Namuth-Covert
University of Nebraska-L...
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MB4 Phenotyping in MAB
Phenotyping in MAB
Aspects related to Marker-Assisted Breeding
Theresa Fulton
Cornell University, Dept of Plant Breeding
Martin Matute
Montana State University, Dept of Plant Science...
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Mecanismo(s) de Acción de las Auxinas y los Herbicidas Auxínicos - Parte 1- Introducción
Descripción:
El control selectivo de malezas de hoja ancha en cultivos de cereales utilizando herbicidas auxínicos ha hecho de éstos una de las familias de herbicidas actualmente en uso más amp...
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Mecanismo(s) de Acción de los Herbicidas Auxínicos - Parte 2 - Nivel Avanzado
Descripción:
El control selectivo de malezas de hoja ancha en cultivos de cereales por los herbicidas auxínicos ha hecho de éstos una de las familias de herbicidas actualmente en uso mas ampliam...
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Metabolism of Herbicides or Xenobiotics in Plants
This lesson will take an indepth view of how plants handle foreign chemicals (xenobiotics) such as herbicides. It will discuss the three main phases that plants use to handle toxic chemicals, which en...
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Mitosis and Meiosis and the Cell Cycle
Understanding multicellular organisms requires an understanding of the lifecycle of the cells that make up the organism.
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Module 1: Basic Biotechnology
An introduction to traditional cross-breeding and genetic engineering of plants, and to biotechnology.
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Module 2: Biotechnology and the Consumer
This lesson discusses the risks and benefits of biotechnology as well as the common consumer concerns with biotechnology.
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Module 3: Biotechnology Practice Applications
Examines functional foods, allergens, genetic engineering, and food safety.
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Module 4: Nutrient Composition
Biotechnology techniques used to make nutritional changes in plants. Examine how protein, fatty acid, carbohydrate, micronutirents, and phytonutrients contents in food have been altered.
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Module 5: Allergenicity
This lesson discusses some of the issues that consumers experience following exposure to certain foods. This lesson will define and discuss food allergies, properties of food allergens, as well as the...
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Native Plant Breeding: Bringing the Beauty of Nature Home
Looks at how native plant breeders create plants with new combinations of desired traits; the relationship between plants, flowers and seeds; male and female structures flowers; flower types based on ...
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Overview of Plant Genetic Engineering
A general description of the overall process of genetic engineering. A basic explanation of the five steps for genetically engineering a crop is provided.
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Perennial Grass Growth and Development
Central to the management of perennial grasses in traditional range and pasture and advanced biomass energy production systems is having a firm understanding of how grasses grow and develop. In this...
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Perennial Plant Response to Defoliation - An Overview
Compares the growth of defoliated and non-defoliated perennial plants, with an emphasis on the link between plant structure, growth, and response to defoliation.
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Plant Pigments and Photosynthesis
This lesson will examine the two major classes of phototsynthetic pigments, chlorophylls and carotenoids, their biochemical structures and their biosynthesis. The organization of these pigments into ...
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Polymerase Chain Reaction (PCR)
The polymerase chain reaction laboratory technique is used in a variety of applications to make copies of a specific DNA sequence. This lesson describes how a PCR reaction works, what it accomplishes...
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Practical Applications of Herbicide Physiology
This lesson will focus on the impact of herbicide and plant characteristics important in determining herbicide performance. Visual images will be used to illustrate several principles including herbic...
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Producing Grain for Animal, Food, and Industrial Uses
Links to three animations on the topic.
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Propagation and Procreation - More of a Good Thing
-Creating unique individuals or perfect little clones
-Genetics of it all--Peas in Darwin's pods
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Protein Detection in Plants
This lesson will focus on molecular principles involved in the detection of biotechnology derived proteins in crops, using the lateral flow ELISA.
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Quantitative Trait Locus (QTL) Analysis 1
This is the first of a two-part series that describes the methods and uses of QTL analysis.
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Quantitative Trait Locus (QTL) Analysis 2
This is the second of a two-part series that describes the methods and uses of QTL analysis.
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Quantitative Traits
Examines quantitative versus qualitative traits, looking at the use of phenotypes in determining quantitative control of heritability.
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Real Time PCR - Some Basic Principles
Real time PCR is a laboratory technique that can perform relatively accurate, reliable and reproducible measurements, to quantitatively determine the presence of specific gene sequences. Its value is...
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Root Absorption and Xylem Translocation
Overview: Herbicides must be absorbed into plants in
order to be effective. Plant roots and below ground shoots have few
barriers to herbicide absorption; however, interactions with soil
particles ...
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Seed Lab Testing
An overview of seed testing methods in the lab.
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Segregation of Genes: The Plant Breeder's Method of Predicting the Future
How plant breeders create families with new combinations of traits and make predictions about the inheritance of traits. Discusses Mendel and Punnett.
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Soil Genesis and Development, Lesson 1 - Rocks, Minerals, and Soils
This lesson identifies some common rocks and minerals and how they influence soil formation.
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Soil Genesis and Development, Lesson 2 - Processes of Weathering
This lesson identifies the factors of weathering processes and how they influence soil formation.
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Soil Genesis and Development, Lesson 3 - Soil Forming Factors
This lesson identifies the five major soil forming factors and discusses how they influence soil development.
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Soil Genesis and Development, Lesson 4 - Soil Profile Development
This lesson discusses the processes controlling soil formation and how these processes relate to the characteristics of a soil profile.
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Soil Genesis and Development, Lesson 5 - Soil Classification and Geography
This lesson discusses the characteristics of the 12 soil orders defined by the USDA soil classification system, the major factors involved with their formation, and their geographic distribution acros...
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Soil Genesis and Development, Lesson 6 - Global Soil Resources and Distribution
This lesson discusses soil resources and functions at the global scale.
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Soil Genesis and Development, Scenario 1 - Agroecosystem Soil, Food and Fiber
This case study addresses how soil formed in different geographical locations of the world influences food and fiber production.
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Soil Genesis and Development, Scenario 2 - Biosolid Addition and Soil Formation
This case study addresses where geographically soil addition of municipal organic wastes occurs and how this addition affects soil profile development and the use of soils as a sustainable resource.
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Soil Genesis and Development, Scenario 3 - Soils and Salts
This case study addresses how soil formed in different parts of the landscape influences productivy in the broad sense, of both economic and non-economic flora and fauna.
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Soils - Part 10: The Scientific Basis for Making Fertilizer Recommendations
The Scientific Basis for Making Fertilizer Recommendations: In this lesson, you will gain an understanding of the history of fertilizer use and the ideas behind fertilizer recommendations. Three major...
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Soils - Part 1: The Origin and Development of Soil
(How Soil Gets a Life and a Name)
In this lesson, you will gain an understanding of the five soil forming factors and will be able to describe how each influences soil development. You will learn to identify common parent materials, d...
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Soils - Part 2: Physical Properties of Soil and Soil Water
This lesson will help you understand the major components of the physical properties of soil. You will learn such terms as texture, aggregation, soil structure, bulk density, and porosity as it relate...
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Soils - Part 3: Soil Organic Matter
In this lesson, you will learn such terms as organic, soil organic matter, nutrient, decomposition, humus, compost, and soil structure. In addition, you will be able to predict the effect of land uses...
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Soils - Part 4: Soil pH
Soil pH is defined and its implications for crop production are described in this lesson. How are soil pH and buffer pH determined? How are these assessments used in lime recommendations? The factors ...
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Soils - Part 5: Nitrogen as a Nutrient
In this lesson, you will be able to describe the forms of nitrogen found in the soil. The nitrogen cycle and how nitrogen is lost in the environment will be thoroughly discussed. Forms of nitrogen uti...
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Soils - Part 6: Phosphorus and Potassium in the Soil
This lesson explains the importance of phosphorus fixation and describes methods for applying phosphorus and the advantages (and disadvantages) of each. It also describes the three forms of potassium ...
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Soils - Part 7: Soil and Plant Considerations for Calcium, Magnesium, Sulfur, Zinc, and other Micronutrients
The 16 essential elements for plant growth and the relative quantities of each needed by plants to grow normally will be discussed in this lesson. You will learn to identify the source of specific nut...
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Soils - Part 8: Characteristics of Fertilizer Materials
The various characteristics of fertilizer materials being sold on the market today will be discussed. You will learn to identify some of the consequences of using each type of fertilizer material and ...
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Soils - Part 9: Fundamentals of Soil Testing
The major emphasis in this lesson is soil testing and understanding the procedures needed to take a representative soil sample. You will understand the term variability, how it affects soil tests, and...
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The Dihybrid Cross and Independent Assortment
Examines the principle of segregation versus the principle of independent assortment and their effects on genetic data; and the concept of dominance.
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The Inheritance of Variation
An introduction to genetic inheritance, including the principles of segregation and dominance.
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The Interaction of Light with Biological Molecules
This lesson describes the nature of light, the energy within photons and how this energy may be transferred to biological molecules. In addition, the beneficial and harmful methods for de-exciting mo...
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The Kochia and Dicamba Story
This lesson examines the development of herbicide resistant weeds and research conducted to help predict and prevent this resistance.
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The New Bts
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The role of JAR1 in insect feeding response
Reveals both the process and the power of conducting experiments with jar1, an Arabidopsis mutant that is insensitive to the hormone jasmonic acid (JA).
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Theories Behind Plant Tissue Culture
When introducing a foreign gene into a target genome in plant tissue, you need to grow the transgenic cell to a complete plant. This is done by plant tissue culture, a biotechnique based on the concep...
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Transformation 1 - Plant Tissue Culture
This lesson explains the technique of tissue culture as used in plant transformation. It discusses important issues, such as
the use of selectable markers, genotype specificity, and tissue culture a...
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Transformation 2 - Transformation Methods
This lesson explains the procedure of introducing a new gene into a plant cell (transformation). It discusses the main goals
of the transformation process and describes the four main methods of tran...
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Transformation 3 - Transformation Events
This lesson defines an 'event'. It explains the determining factors specific to an event, the qualities of a desirable event, and
the identification and selection of desirable events.
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Transpiration - Water Movement through Plants
This lesson and its animation follows the journey of water through a plant from its uptake by roots to its evaporation from the leaf surface. How this journey is altered by plant characteristics such...
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Utilization of Grain by Swine and Poultry
Anyone involved in the grain industry needs a thorough understanding of swine and poultry nutrition to ensure grains closely match the dietary needs of these animals.
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What is the importance of crop production in Nebraska and how do crops grow?
This lesson can easily be adapted to address as few as one learning objective or all. Objectives and corresponding learning activities are numbered accordingly.
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