Project Summaries

11-998KS  Project Manager: D. C. Jones


Rex D. Friesen, Southern Kansas Cotton Growers Cooperative, Inc.

Side-by-side variety tests provide an invaluable service to local growers on the performance and potential value of available cotton varieties.  Two tests were conducted in South-Central Kansas in 2012, comparing new and familiar varieties for our area. One site was not harvested due to excessive impact of drought. The highest yielding varieties with highest net returns were DP 0912 B2RF, DP 1219 B2RF, PHY 375 WF, PHY 499 WF, and NG 1511 B2RF, ST 4288 B2F, DP 1212 B2F, FM 1944 GLB2, FM 1740 B2F, AT Edge B2F, and FM 2011 GT, in that order. DP 1212 B2RF showed the earliest initiation of fruit production; PHY 499 WF was the latest.

Varieties tested included EDGE B2F, DP 0912 B2RF, DP 1212 B2RF, DP 1219 B2RF, FM 1740 B2F, FM 1944 GLB2, FM 2011 GL, NG 1511 B2F, PHY 375 WF, PHY 499 WF, ST 4288 B2RF.  Varieties demonstrated a broad range of performance in pounds and net returns, with a difference of 262 lbs/ac and $150.81/ac between the first and last place. Variety DP 0912 placed first in yield and returns, producing 682 lbs lint/ac and $246.84 net return/ac. This was about 40 lbs lint/ac and net profit of $15.22/ac over the two second place varieties, PHY 375 and PHY 499 (by lint lbs). Differences in quality, as reflected in the loan rate, changed the ranking of some varieties. DP 1219, which placed 5th by pounds per acre, had a significantly higher loan rate of $.5745 (versus $.5265 of DP 0912), which placed it in 2nd place by net profit per acre. The new entry varieties from DeltaPine (DP 1219, DP 1212), FiberMax (FM 1944) and NexGen (NG 1511) placed in the middle. The poor performance of FM 2011 was disappointing but is believed to be due to in-season bollworm damage--it was the only variety that did not contain Bt. Combining yield and earliness data to evaluate varieties appropriate for South Central Kansas, the top producing varieties were DP 0912, DP 1219, PHY 499, PHY 375, and NG 1511. Both of the Phytogen varieties tended to be "slow starters" in initiating fruit set. Phytogen 499 is a longer-than-usual variety for our area, but was able to finish out well. However, in a cooler, shorter season, it may have problems here. DP 1212 appeared to be the quickest in square initiation. The top five varieties were separated by a maximum difference of $22.46/ac net profit, after which there appeared to be a significant decline in performance with the remaining varieties. Several new varieties were disappointing, e.g., DP 1212, FM 1944 and FM 2011. An older variety, FM 1740 has performed well for us in South-Central Kansas in past years, but appears to be the most drought sensitive of those tested. Although the results of the above trial are interesting, it is freely acknowledged that 2013 was an exceptionally difficult production year, and no major recommendations should be made on results from tests performed under such conditions.


Project Year: 2012

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