Wheat Varieties and Plant Populations

(Romulo) Good morning. I am Romulo Lollato, Extension Wheat Specialist, with Kansas State University, and today we are here at south central Experiment Field near Hutchinson, and we are going to talk about some of the experiments that we have going on, to bring you more applied information on how to improve productivity in your own farm. Right here behind me today, we have a trial that is in collaboration with Kansas Wheat Alliance, where we are trying to improve the recommendations of planting date before the varieties are actually released. Recently, we have seen varieties being released in a faster fashion, so every year we have more and more wheat varieties coming up, and this gives us, in Research and Extension, less time to understand the behavior of those varieties. The intention of this trial here is to take a look at some of the upcoming lines, varieties that are recently released, or are still in the pipeline to be released within this next year or two years, and understand how they behave, as far as tillering and yield potential was affected by planting date. Here in Hutchinson, south-central portion of the State, few varieties that we are testing, we have a check, which is our Everest, has been around for awhile, still is the most widely planted variety in the State. We are also looking at KanMark, a recent release from Kansas Wheat Alliance in K-State. 1863, a few that are in the pipeline as well. Joe, a new white wheat out of the K-State Hays program, and Tatanka which is a red wheat out of K-State Hays program as well. As well as Larry, which is red wheat out of the Manhattan breeding program is going to be placed for central and western Kansas. As well as Zenda, which is coming out here the next year as a replacement for Everest. So is a variety that holds really well as far as head scab and barley yellow dwarf as well. We’re looking at these seven varieties and trying to understand how they respond to plant population. We’re looking at plant population here starting as low as 600,000 seeds per acre, 900,000 seeds per acre,1.2 million seeds per acre,1.6 million seeds per acre, as much as 2 million seeds per acre. Our intention here we are measuring fall tillering, how many tillers are they putting out, and how is this being affected by plant population. As well as spring tillers, how many tillers were aborted because of high population or not, and number of heads and many other yield components like grain number, and finally our grain yield, and the intention here is maybe not to recommend an optimum planting population, because that’s going to vary year by year. But what’s the plant population that minimizes our risks, right? What’s the lowest plant population that can grow but is still maximize the production, the tiller number, as well as our yield potential. We want to make sure that even though we might go short on our number of plants per acre, we don’t go short on our yield potential. That’s why we are trying to find the difference between these varieties. And again, by the time these varieties are released, we want to have a better information for you as a producer, recommended as far as management practice for each one. We want to have a better understanding, so we can really recommend what you should be doing in your farm to maximize both your yield and your profitability as well. More information on these, you can follow me on Twitter @KSUWheat. I’m also on Facebook K-StateWHEAT. This information is weekly put out as Agronomy e-Update. If you are not on that mailing list make sure that you contact the Department of Agronomy and put your email on our mail list, so we are sending weekly informations for you.

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