Breeding Success Series: Part 2, Advanced Lines that are Near Release

Texas Peanut Producers Board is dedicated to spending 50 percent of our annual budget on research, approximately $350 thousand annually. In an effort to keep our farmers informed, our peanut research team got together and wrote a series of articles over successes in the industry. We will be featuring these articles in a three part blog series. “Thank you to our Texas Peanut Breeding Research Team Members, Drs. Mark Burow, Michael Baring, Charles Simpson and John Cason, for their contributions.”

Read Part 1, The Last 15 Years HERE.

 

Part II: Advanced Lines that are Near Release

 

The TAMU AgriLife Research peanut breeding program is constantly making new crosses and selections with materials that have qualities or traits that are better than varieties that are currently being offered to peanut growers. This is all in an attempt to improve profit margins and reduce grower risks. For instance, when we released Tamrun OL11, we greatly reduced the risk of crop failure due to Sclerotinia blight and we increased profitability by providing a variety with improved grade attributes. We released Webb in an attempt to provide growers who have fields infested with Rootknot nematodes, another variety option that is high oleic and will survive a nematode infestation. At the time of its release there were no other high oleic nematode resistant variety options. That being stated, we have a number of advanced lines which are nearing release that we hope will improve grower profitability and or reduce grower risks.

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Due to pre-publication issues, we are not permitted to pre-publish names, numbers, and data about lines that we are about to release because it would compromise our ability to publish release articles on this material. We can however speak in general terms as to the development of our advanced materials which we consider to be within a year of potential release.

We are awaiting approval on a new high oleic Valencia-type release. The new release will have improved yield potential ranging from 13-33% higher than current Valencia-type cultivars depending upon the year and the location. There is only one other high oleic Valencia-type being grown commercially and that was developed by the University of New Mexico.

The new line has shelling characteristics equal to New Mexico Valencia C which was grown commercially for many years. We have a 1.7 acre seed increase located at the TAMU Research and Extension Center in Lubbock.

We have about 100 lines in our multiple disease resistance program which are being yield tested this year.

A few of these lines are in advanced testing stages with one in particular being looked at as a possible release candidate for 2016. This line is high oleic and does have resistance to Rootknot nematodes. Over the last two years of testing, it has had a 9-13% advantage in yield over Webb with a 1.1-2.5 percentage point higher average grade resulting in a 10-16% higher value/acre across two years and four locations. We are testing the line at 6 locations against our most advanced lines and commercial varieties as well as testing it against our newer generation lines in 4 different tests at 4 locations for a total of 22 tests. If the lines performs well again in 2015 we will proceed with its release.

The program has been working on early maturing runner lines for many years now. We released Tamrun OL12 because it was 2 weeks earlier maturing than current commercial cultivars, but after contamination of the Breeder’s seed stock due to out-crossing from bees, we decided to table the re-increase of Tamrun OL12 because we felt that we had better performing lines which were only one year behind the re-increase of Tamrun OL12. We literally have hundreds of breeding lines which are being tested and evaluated as early maturing runner materials. In 2015 we chose 5 of our most advanced lines that performed at the top of the test for yield and planted small seed increases at Yoakum Texas (pictured below).

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We are increasing these lines in anticipation of selecting one as a release candidate after the 2015 crop season. While these lines are not as early maturing as Tamrun OL12, they are earlier than current commercial varieties and they have yield potential up to 1,000 lbs/a better than Tamrun OL12 and improved grade characteristics.

 

Check back soon for the next part of this three part series, How DNA Markers are Helping Us Help You!

Read Part 1, The Last 15 Years HERE.