All posts by Ryan Blair, County Variety Trial Coordinator

2023 Top Bean Contest Winners

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Thanks to all the agents and producers who entered the 2023 TN Top Soybean Yield Contest sponsored by Tennessee Soybean Promotion Board.   There were over 50 producers across TN who participated in the 2023 contest.  See the winners below!

For more information, please contact your local County Extension office.  Notice of Intent for the 2024 Yield Contest are due in early September.

Complete contest rules and forms are available at your County Extension Office


2023 County Standardized Trials-Soybean Data

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This year’s soybean CST class consist of 61 varieties covering late 3’s to early 5’s maturity groups.  These trials are split by both maturity groups and herbicide tolerance, Late III, Early IV, Late IV, and Early V, and by Xtend and Enlist.  These trials were planted on-farm across the state in 63 county demonstration plots.

If you have questions about UT’s variety testing program, please contact your local county agent.

Thanks to all who contribute to these trials and your support to the program.

Click on the table below to enlarge data in pdf form.

Late III Xtend

Early IV Xtend

Late IV Xtend

Early V Xtend


2023 County Standardized Trials-Corn

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39 Corn Hybrids were evaluated in the 2023 CST program.  With the weather we had this summer, our yields are very strong with an overall average across all hybrids and locations over 210 bu/ac. With the many locations/replications in these trials, we can look at performance across many soil types and weather/climate conditions that you can use to help select high yielding, consistent hybrids to bring to your farm.  Contact your local county agent for more details or if you need a print out of this data.

These CST plots are large strip trials located ‘on-farm’ with a minimum of 300 feet in length.  Inputs and management decisions are on a by location basis and determined by the cooperating producers.  Three relative maturity groups divide the trials, Early Corn will be 113 day and earlier, Medium Corn will be 114-116 day, and Full Corn is 117 day plus.  Thank you to everyone involved in the CST program for your support and contributions: County Agents, UT Extension/Research, Growers, Industry, Retail.

Below are the results for our 3 RM groups.  Click on the table to open a PDF of these tables.  These results can also be accessed on

Early Corn <114 day

Medium Corn 114-116 day

Full Corn >116 day

2023 Wheat Official Variety Trial Results

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The results of the 2023 Official Variety Trials; Wheat are in.  This information will be available on our variety testing site soon and can also be accessed through your local County Extension Office.

Click on the tables below to open as a PDF.  You may then zoom in to better see the results.

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