All Media (Videos)

A short video on Dr. Sam Wortman explaining how mulch degradation works in the field. He then proceeds to talk about his research goal to find out what benefits these different kinds of mulch can provide to soil organic matter and other soil processes.

Learn how to read and dissect scientific articles with Kristina Alas. It can be difficult at times to read or find key information in peer reviewed articles that can at times seem challenging. Kristina will go over the accepted structure of scientific articles and go over what information is presented in each section of an article.

A presentation going over standard deviation and standard error and how they are used in scientific research.

A video that goes over the steps of how to calculate Standard Deviation and Standard Error using Excel.

Instructional video of how to add error bars to a Bar Graph.

An animation on how the conventional breeding method of backcross is done. This is the seventh of a series of seven animations that detail the process of crop genetic engineering. *no audio on the video*

Presentation describing how to install a new Package in R, by Ashu Guru, University of Nebraska Raikes School (1 min)

Presentation on demonstrating function "str" in R, by Ashu Guru, University of Nebraska Raikes School (3.5 mins)

Presentation on demonstrating function "factor" in R, by Ashu Guru, University of Nebraska Raikes School (4.5 mins)

Presentation on demonstrating function "xtabs" in R, by Ashu Guru, University of Nebraska Raikes School (3 mins)

Presentation on demonstrating function "sink" in R, by Ashu Guru, University of Nebraska Raikes School (2.5 mins)

Presentation on demonstrating "New Treatments as Fixed Effect" in R, by Ashu Guru, University of Nebraska Raikes School (7.5 mins)

Presentation on demonstrating function "within" in R, by Ashu Guru, University of Nebraska Raikes School (4.05 mins)

Presentation on demonstrating the model with new Entries as Random Effects, by Ashu Guru, University of Nebraska Raikes School (4.0 mins)

This animation examines several states of a weed species during the growing season and studies the transitions that occur between each state. *no audio on the video*

This animation shows how plants uptake herbicides from the soil. *this animation has no audio*

A description and illustration of the different types of flowers found in the family Asteraceae *no audio on the video*

A tomato plant sprayed with 2,4-D *no audio on the video*

This animation summarizes how auxin and auxinic herbicides may turn on certain genes and how those gene products may alter plant growth. *this animation has no audio*

An illustration of how auxins and auxinic herbicides may elicit responses in plant cells. It describes basipetal transport of auxins via influx and efflux carriers and displays a scenario of auxin action where auxin receptors recognize auxins and auxinic herbicides, which then induce a signal transduction cascade to turn on various gene products. The role of these gene products in plant response is shown as well. *this animation has no audio*

This animation defines ionization, pH, and pKa. *this animation has no audio*

This animation shows the ethylene biosynthesis pathway and how auxins and environmental stresses induce it. *this animation has no audio*

This animation shows the transcription process of RNA within the plant cell. Single stranded RNA moves out of the cell where it is translated into proteins. This is the first in a series of three animations on protein synthesis.*This animation has no audio.*

This animation shows the differences between natural plant breeding and plant breeding used in biotechnology. The end result is a plant with the desired gene lacking undesired genes. *This animation has no audio.*

The human body response when exposed to allergens. *This animation has no audio.*

How the gene gun works to transform cells with new DNA. This is the sixth of a series of seven animations that detail the process of crop genetic engineering. *This animation has no audio.*

Antisense Technology and its use in tomatoes. *This animation has no audio.*

Watch this video to learn how to score buffalo grass with Kristina Alas.

In this video we will then use the data we generated to create a figure that will serve as a visual representation of what we are seeing in the the buffalo grass plots over time. Kristina Alas will go step by step on how to set up a bar graph in Microsoft excel.

Learn how data collection for Buffalo Grass breeding trials work and analyze the data collects. Develop data sorting skills as well as an understanding of when to reject data that does not belong due to an error or abiotic and biotic stress factors.

Use data management techniques to create mean data and use it assemble into a line graph to compare buffalo grass cultivars.

Developing excel skills by demonstrating how to create a line graph and how to improve/edit the graph to fit your needs.

This animation describes how herbicides are taken up by leaves and illustrates how physico-chemical characteristics alter their movement across cuticles. Passive and active mechanisms of herbicide absorption across plant membranes into cells are shown as well.

Tutorial clip demonstrating how to calculate expected F2 ratios and individuals in classes for a chi-square analysis.

Tutorial clip demonstrating how to calculate expected F2 ratios and individuals in classes for a chi-square analysis.

Video tutorial showing how to read a chi-square distribution table to determine probability values that experimental data supports a tomato breeding hypothesis.

This video clip demonstrates how to calculate the expected F2 frequencies and numbers of individuals based upon genotypic data from DNA markers.

An animation that demonstrates how controlled crosses are made in corn. This animation has no audio.

This animation shows the lifecycle of the corn rootworm, as well as showing what happens when corn rootworm larvae consume roots containing Bt. *This animation has no audio*

This animation discusses the importance of Insect Resistance Management (IRM) and illustrates different field refuge designs. *This animation has no audio*

(Approx. 6 minutes)

(Approx. 10 minutes)

A data analyst's perspective on a winter wheat experiment.

If you are a Windows user please follow the following demonstration video by Ashu Guru (5 mins)

If you are a Mac user please follow the following demonstration video by Ashu Guru (5 mins):

Data files presentation by Ashu Guru, Univ of Nebraska Raikes School. (2 mins)

Presentation on the cycle and tasks of data analysis by Ashu Guru, Univ of Nebraska Raikes School (4 mins)

Presentation on how to divide a complex problem into smaller tasks by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

A demonstration of data types in R by Ashu Guru.

Presentation describing the subset function in R, by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

Presentation describing the aggregate function in R, by Ashu Guru, Univ of Nebraska Raikes School (4 mins)

Presentation describing the rbind function in R, by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

Presentation describing the transpose function in R, by Ashu Guru, Univ of Nebraska Raikes School (4 mins)

Presentation describing the transform function in R, by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

Presentation describing the merge function in R, by Ashu Guru, Univ of Nebraska Raikes School (5 mins)

Presentation describing the script in R, by Ashu Guru, Univ of Nebraska Raikes School (18 mins)

Learn about the life cycle of perennials and how defoliation at different times of the season and different heights affects their growth and carbohydrate reserve levels.

Esta animación muestra el proceso general de la ingeniería genética. *This animation has no audio.*

This animation shows the DNA structure and how it makes up genes and chromosomes in the cell. This is the second of a series of seven animations that detail the process of crop genetic engineering. *This animation has no audio.*

This animation explains how gel electrophoresis works. The affect of fragment size on movement through the gel is demonstrated. *This animation has no audio.*

Soil Erosion by Wind and its Control

This video clip explains the three steps in wind erosion (detachment, transport, and deposition). The clip also explains how threshold velocity varies depending on the nature of the soil surface.

Hover over a hillside area to see the water flow pattern. *This animation has no audio.*

Factors and processes of wind erosion are explained in this video clip. The clip explains how wind velocity or speed affects wind erosive energy. The video also explains how the nature of the soil surface affects erosive wind energy.

Animation of saltation, soil creep, and suspension during wind erosion. *This animation has no audio.*

This video clip explains the relationship of soil texture to type of wind erosion (saltation, surface creep or suspension). Video clip by Dr. John Tatarko, USDA

This video explains the beneficial effects of vegetative cover in reducing wind erosive energy and trapping moving particles.

This video clip explains how barriers alter the effect of the wind force on the soil surface. The video discusses the different types of barriers and their advantages and disadvantages.

This video clip explains how wind erosion can be reduced by roughening the soil surface and forming soil aggregates. This method of erosion control can be used when vegetation is sparse and/or the cropping system does not allow for vegetative cover.

This video explains the beneficial effects of soil surface cover to control and reduce wind erosion.

This video explains how strip cropping can reduce wind erosive energy and traps moving particles

European Corn Borer Movement Map *This animation has no audio.*

European Corn Borer Generation Map *This animation has no audio.*

This animation goes through the life cycle of the European corn borer. *This animation has no audio.*

This animation shows how Bt causes death in the European corn borer (ECB). *This animation has no audio.*

This animation illustrates the botanical parts of flower structures. Edited March, 2012. *This animation has no audio.*

A basic depiction of the steps in gene cloning. This is the third of a series of seven animations that detail the process of crop genetic engineering. To begin at the beginning, see Overview of Crop Genetic Engineering. (To return to the animation previous to this, go to DNA and DNA Extraction. To go to the next animation, go to Gene Regions.) *This animation has no audio.*

This animation shows how a plasmid responsible for encoding a gene can be cut. The plasmid can be altered with the addition of linear DNA to form a recombinant plasmid to encode a new gene of interest. This is the first of four animations detailing the gene cloning process. The other three animations are Bacteria Transformation, Making a Library, and Screening a DNA Library.

Illustrates the beginning stages of gene cloning. This animation shows how plasmids become recombinant and are inserted into bacteria cells. This is the second of four animations detailing the gene cloning process.

This animation shows how to make a colony of new DNA in order to locate a specific gene of interest. This is the third of four animations detailing the gene cloning process. To begin at the beginning, choose Making a Recombinant Plasmid. (The animation prior to this one is Bacteria Transformation. The animation just after this one is Screening a DNA Library.)

This animation shows how scientists find the gene of interest by screening thousands of bacteria. Scientists can screen the protein or the DNA. This is the fourth of four animations detailing the gene cloning process. *This animation has no audio.*

This animation shows the three gene coding regions. This is the fourth of a series of seven animations that detail the process of crop genetic engineering. To begin at the beginning, see Overview of Crop Genetic Engineering. *This animation has no audio.*

This animation shows how a gene is constructed to eventually produce a protein in a Bt corn plant. This is the fifth of a series of seven animations that detail the process of crop genetic engineering. *This animation has no audio.*

This is an interactive animation that asks the viewer to design a gene by selecting the promoter and coding region that will produce a plant with the desired traits. *This animation has no audio.*

A detailed depiction of transcription, the first stage of protein synthesis. This is the second in a series of three animations on protein synthesis. To begin at the beginning, go to Protein Synthesis - A general overview. *This animation has no audio.*

A detailed depiction of translation, the second stage of protein synthesis. This is the third in a series of three animations on protein synthesis. To begin at the beginning, go to Protein Synthesis - A general overview. *This animation has no audio.*

A USGA green session short demonstrating the need for watering golf courses.

An animation in the context of a plant cell which shows the sequence of converting light energy photons into ATP and NADPH, biochemical energy. *This animation has no audio.*

Discusses the relationship between herbicide effectiveness and resistance development. *This animation has no audio.*

Illustrates how selection for herbicide resistance occurs. *This animation has no audio.*

Illustrates both susceptibility and resistance for single and multiple target sites in herbicides. *This animation has no audio.*

Photosystem II Resistance Animation *This animation has no audio.*

Glutathione Conjugation: This animation has no audio. It is a video of the original animation and is not interactive.

Amide Hydrolysis This animation has no audio. It is a video of the original animation and is not interactive.

General and specific examples of major oxidative Phase I reactions are shown in this animation. This animation has no audio. It is a video of the original animation and is not interactive.

Accesando: Accion Enzimatica * Esta animación no tiene audio. *

Esta animación es sobre la naturaleza competitiva del glifosato. * Esta animación no tiene audio. *

This animation shows the role of EPSP synthase in binding shikimate-3-phosphate and PEP. *This animation has no audio.*

This animation shows how herbicides compete with PEP to alter the function of an enzyme. *This animation has no audio.*

An animation on the role of acetolactate synthesis in branched chain amino acid biosynthesis. *This animation has no audio.*

This animation shows the process of lipid biosynthesis. It focuses on the biotin carrier protein. *This animation has no audio.*

International Plant Protection Convention, 60th anniversary (IPPC)

Drought Tolerant Maize for Africa (DTMA) -- Presented by CIMMYT

Diagramas de Jablonski * Esta animación no tiene audio. *

Esta animación describe como se mueve el agua a través de las plantas y como este movimiento es afectado por diversos factores. * Esta animación no tiene audio. *

Descripción de la Transferencia de Electrones entre Fotosistemas * Esta animación no tiene audio. *

Transferéncia de Electrones Dentro de la Célula * Esta animación no tiene audio. *

This animation demonstrates the four forms that phosphorus (P) can take in surface water, and how the equilibrium between the forms can be upset and then rebalanced. *This animation has no audio.*

An animation showing how plant breeding has changed over time, including the use of molecular markers. *This animation has no audio.*

This animation shows details on DNA extraction methods for plant material. *This animation has no audio.*

Se muestra como las auxinas y los herbicidas auxínicos pueden inducir respuestas celulares y se describe el transporte basípeto de las auxinas. También se muestra como los receptores de auxinas reconocen las auxinas y los herbicidas auxínicos, los cuales inducen entonces la transmisión y traducción de señales para activar varios genes; el papel de los productos de esos genes en las respuestas de las plantas es también mostrado. * Esta animación no tiene audio. *

En esta animación se definen los términos Ionización, pH y pKa. * Esta animación no tiene audio.*

Esta animación resume la forma en que las auxinas y los herbicidas auxinicos pueden activar ciertos genes y como los productos de esos genes pueden alterar el crecimiento de las plantas. * Esta animación no tiene audio.*

Esta animación muestra la ruta de síntesis del etileno y su inducción por las auxinas y el estrés ambiental. * Esta animación no tiene audio.*

A general look at the process of crop genetic engineering. This is the first of a series of seven animations that detail the process of crop genetic engineering. The six lessons after this are DNA and DNA Extraction, Gene Cloning, Gene Regions, Gene Modification, Gene Gun, and Backcross Breeding. *This animation has no audio.*

The growth of grass leaves and tillers.

This activity discusses both seed structure and seedling emergence in monocots. Through active learning elements, photos and text students will discover the basic anatomy of seeds and the function of each structure. The process of seedling emergence is presented in detail including the difference between emergence in cool-season and warm-season grasses. *This video has no audio.*

This video covers how to characterize developmental stages of tillers and quantify them.

This animation shows how a chlorophyll molecule captures light energy and excites an electron to begin photosynthesis. *This animation has no audio.*

This animation depicts the process of PCR. Each component involved in the process is outlined and described in this animation. *This animation has no audio.*

Discusses how production practices affect the grain quality of maize. *This animation has no audio.*

Discusses the relationship between the amount of nitrogen applied and how it affects grain yield and protein concentration in a grain crop. *These animations have no audio.*

Discusses the relationship between the amount of nitrogen applied and how it affects the protein fraction, lysine concentration, and kernel hardness of a grain crop. *These animations have no audio.*

This animations illustrates the structures of a flower, plant breeding, cross pollination and making crosses. This animation has no audio.

This animation illustrates the concepts of protein detection using the lateral flow strip method. This method is similar to ELISA and is utilized in detecting GMOs, among other applications. *This animation has no audio.*

The objective of this animation is to develop a QTL mapping population for locating and characterizing the genes responsible for resistance to tan spot disease of wheat. *This animation has no audio.*

This animation shows how markers on a gel are scored. *This animation has no audio.*

A demonstration of how to complete QTL analysis using single-factor ANOVA in Excel *This animation has no audio.*

FRET is an acronym for Fluorescence Resonance Energy Transfer. It is a DNA detection tool.

The Taqman probe detection system used in real time PCR (also known as quantitative PCR) is illustrated in this animation. One application of this method is use in GMO detection. *This animation has no audio.*

Real time PCR can be accomplished using the taqman detection system. This video shows an overview of the taqman process.

This animation shows how herbicides are taken up by roots and illustrates the path a herbicide takes across the root to reach the vascular system of the plant. *This animation has no audio.*

Dr. Baenziger's wheat breeding experiments and the Punnett Square

Chemical Weathering - hydrolysis of feldspar.

Feldspar Weathers to Clay *This animation has no audio.*

Dehydration is the removal of water from rock or mineral structures. A good example of dehydration is the removal of water from limonite, resulting in the formation of hematite.

An overview of the different soil horizons, their composition, and how they develop. *This animation has no audio.*

This animation displays how electrons can absorb and transfer energy. *This animation has no audio.*

A discussion about herbicide resistance management and research with dicamba.

This video is about 4 1/2 minutes long.

Fragrant Signal 2

This animation details how water moves through plants and how various factors affect this movement. *This animation has no audio.*

This video details monogastric digestion through the example of a pig. *This animation has no audio.*