Colorado Wheat Variety Performance Database Wheat Breeding and Genetics & Crops Testing Programs Soil and Crop Sciences Department Colorado State University Fort Collins, CO 80523

To provide unbiased and reliable yield performance information to Colorado wheat growers, the Colorado State University Crops Testing Program annually conducts winter wheat variety trials at multiple locations throughout Colorado. The Colorado Wheat Variety Performance Database provides complete access to winter wheat cultivar information and performance data from Colorado trials (1990-2008) as well as recent trials in Kansas, Nebraska, and Wyoming (2001-2008). The database may be used to find up-to-date information on wheat cultivars grown in Colorado, display grain yield and test weight data from individual trial locations, generate grain yield and test weight summaries across multiple trial locations and years, and generate head-to-head comparisons for two varieties of interest.

In using this database, wheat producers are encouraged to spread the variety decision risk by planting more than one variety. The average performance over two or three years is a proven tool for yield performance evaluation but producers should be mindful of other varietal characteristics, like maturity, height, disease and insect resistance, and quality characteristics, that influence variety adaptation, performance, and marketing options.

Click here for a PDF version of the variety characteristics table (8/21)

Screen Shots of the Database

Users may search the database for information on current varieties or compare charateristics between two varieties. Displays highlight important variety characteristics and show a picture of the variety in a field plot.	Users may create multiple-location averages across years and trial regions specified by the user. Displays show yield and test weight averages across specified trial locations.	Users may create a head-to-head summary between two varieties, restricted to datasets specified by the user. Displays show yield and test weight of the two varieties and a statistical comparison between the two varieties.

Version Notes

Instructions on Downloading the Database (Approx. Size 115 MB)

1) If you are a PC user, click here to download the database. The name of the file you will download is "wheat.exe", which is a self-extracting Stuffit archive. Once downloaded to your disk, locate this file and double click on it to install the files to your computer. Please note that the database will not run on Windows 98.

2) If you are a MAC user, click here to download the database. The name of the file you will download is "wheat.sit", which is a Stuffit archive. Once downloaded to your disk, locate this file and double click on it to install the files to your computer. If you don't have it already, you will need to download the free Stuffit Expander to decrompress the files.

To Run the Program

1) Open the file named "CO Wheat Variety Database".

2) Enter 'wheat' as user name and 'wheat' as password to open the database (no quotes).

3) Begin by clicking on any of the buttons on the bottom of the screen. At any time, you can hit the "Help/About" button for context-sensitive information and tips on using the database.

Important Notes

1) If you encounter any difficulties with installing the database, have questions about how to use the database, or experience problems or "bugs" with the database, please email me at scott.haley@colostate.edu

2) If you would like to be added to the list of database users, and receive email notification of when the database is updated, please email me at scott.haley@colostate.edu and your name and email address will be added to the list. I will not distribute your names or email addresses to anybody.