The success of flax production is affected by choice of variety. Carefully examine seed yield, oil content, disease resistance, and maturity. In some cases oil content or other traits may offset a yield advantage

Gilbertson, Lee

Grady, Kathleen

English

Public Research Access Institutional Repository and Information Exchange

South Dakota State UniversityOpen PRAIRIE: Open Public Research Access InstitutionalRepository and Information ExchangeExtension Extra SDSU Extension4-1-20072006 South Dakota Flax Variety EvaluationsKathleen GradySouth Dakota State UniversityLee GilbertsonSouth Dakota State UniversityFollow this and additional works at: http://openprairie.sdstate.edu/extension_extraThis Other is brought to you for free and open access by the SDSU Extension at Open PRAIRIE: Open Public Research Access InstitutionalRepository and Information Exchange. It has been accepted for inclusion in Extension Extra by an authorized administrator of Open PRAIRIE: OpenPublic Research Access Institutional Repository and Information Exchange. For more information, please contact michael.biondo@sdstate.edu.Recommended CitationGrady, Kathleen and Gilbertson, Lee, "2006 South Dakota Flax Variety Evaluations" (2007). Extension Extra. Paper 269.http://openprairie.sdstate.edu/extension_extra/2691South Dakota State University / College of Agriculture & Biological Sciences / USDAExEx8055Oct. 2009Plant Science4 pagesThe success of flax production is affected by choice of variety. Variety characteristics such as seed yield, oil content, disease resistance, and maturity should be examined carefully when de-ciding which variety or varieties to plant. In some cases oil content or other traits may offset a yield advantage.YIELDEvaluate as much yield data as possible when selecting a variety, looking at relative performance over many locations and years. For example, variety comparisons over 3 years are better than those from a single year or location. A consistent performance of a variety over many environments is called yield stability.Good yield stability means that a variety may or may not be the best yielder at all locations, but it ranks high in yield potential at many locations. A variety that ranks in the upper 20% over all locations exhibits better yield stability than one that is the top yielder at two locations but ranks in the lower 40% at two other locations.To determine if one variety is better than another for a given trait, use the least significant difference (LSD.05) value at the bottom of each data column. The LSD value is a statistical way to indicate if a trait like yield differs when com-paring two varieties. If two varieties differ by more than the indicated LSD value for a given trait, they will likely differ when grown again under highly similar conditions.If the LSD.05 value is indicated as “ns,” it means that there were no statistically significant differences in yield among the varieties. In other words, the variety yields were all close enough to each other to be essentially the same, considering the amount of variation inherent in the test.When evaluating yield, look at as many trials as possible. Trial results from neighboring states are readily available and provide additional data on variety performance. It is unlikely that the environmental conditions of a test will repeat in any future year.The coefficient of variability (C.V.) listed at the bottom of the data table is a relative measure of the precision or reliability of a test. Generally, trials with low C.V. rates are more reliable for making variety choices than trials with higher C.V. rates. Trials with C.V. rates of 15-20% or less may be considered reliable.OIL CONTENTAmong varieties with similar yield potential, select the one with the highest oil content. It does not pay to sacrifice yield for oil content, however.MATURITYLater-maturing varieties generally will pro-duce higher yields than early varieties when seeded at normal planting dates. Maturity is par-ticularly important if planting is delayed. In many cases of late seeding, only an early variety will mature properly and exhibit its best yield poten-tial and oil content.South Dakota Flax Variety Evaluations2009Kathleen Grady, oilseed breeder and Extension specialistLee Gilbertson, senior ag research technicianSDSU Plant Science Department2DISEASE RESISTANCEThe two most serious flax diseases are wilt and rust. Currently, all commercially grown flax varieties are resistant to race 371 of the flax rust pathogen Melampsora lini. This is the most common naturally occurring rust race in North America. Flax wilt is caused by Fusarium oxys-porum f. sp. lini, a soil-borne pathogen that can infect plants at any stage of development. It may cause wilting and death of seedlings or older plants, stunting, loss of vigor, and reduced yield. Flax varieties differ in their resistance to flax wilt. If flax is grown in a field with a history of wilt, a wilt-resistant variety should be selected. A fungi-cide seed treatment will provide early protection to infection by seed-borne and soil-borne organ-isms that cause seedling blight and damping-off.SEED AVAILABILITY AND QUALITYSeed sources for Canadian and some older flax varieties may be limited. Be sure to plant only high-quality seed with good germination. Certified seed is recommended to assure varietal purity, seed viability, and freedom from patho-gens and weed seed.2009 TRIAL PROCEDURESA yield trial of flax varieties and experimen-tal lines from South Dakota, North Dakota, and Canada was grown at Brookings, S.D., in 2009. The purpose of the trial was to provide perfor-mance data on released flax varieties to producers and compare performance of experimental lines to established checks in order to identify possible new varieties.In 2009, five experimental lines from the NDSU or Canadian flax breeding programs were tested against 17 released varieties. The trial was planted on May 19, 2009. The previous crop was oats. Experiment design was a randomized complete block with three replications. Plots con-sisted of seven rows 20 ft. long, with rows spaced 7 inches apart. Plots were harvested by cutting the middle three rows of each plot with a bundle cutter, then drying and threshing the bundles. Oil content was determined with a Bruker minispec NMR on oven-dried 35 ml seed samples from each plot. Oil contents were adjusted to 10% moisture basis.Table 1 shows 2009, 2-, and 3-year average yield, oil, flowering, and height data for flax grown at Brookings, S.D. Table 2 summarizes the characteristics of the varieties included in the performance trials. Yields at Brookings in 2009 averaged 26.7 bu/acre with 39.7% oil.ACKNOWLEDGEMENTSThis research was supported in part by the South Dakota Oilseeds Council.South Dakota State University, South Dakota counties, and U.S. Department of Agriculture cooperating. South Dakota State University  is an Affirmative Action/Equal Opportunity Employer and offers all benefits, services, education, and employment opportunities without regard for race, color, creed, religion, national origin, ancestry, citizenship, age, gender, sexual orientation, disability, or Vietnam Era  veteran status.EXEX8055 Access at http://agbiopubs.sdstate.edu/articles/ExEx8055.pdf.3Table 1.  2009 Flax Variety Trial, Brookings, S.D.Variety Origin-Year-Seed Yield Oil Flower Plant Height2009 2-yr 3-yr 2009 2-yr 3-yr 2009 2-yr 2009 2-yr 3-yr(bu/ac) (%) (days) (inches)AC Hanley CAN-02 26.1 21.1 19.2 38.5 38.2 38.8 52 52 23.2 21.4 19.7Bison ND-27 28.2 19.8 19.9 38.7 38.3 39.0 47 49 23.6 22.4 20.6Carter ND-05 26.4 19.9 19.1 39.9 39.2 39.8 52 54 24.4 23.4 21.1CDC Arras CAN-00 19.4 18.3 17.1 39.4 38.9 39.4 51 53 24.8 23.4 21.2CDC Bethune CAN-00 19.5 16.9 16.5 39.2 38.7 39.4 51 53 25.2 24.1 21.7CDC Sorrel CAN-07 25.8 20.2 – 38.8 38.8 – 53 55 27.2 24.8 --Linott CAN-66 23.2 19.1 18.7 38.5 38.6 39.4 50 53 24.0 23.3 21.1McGregor CAN-82 25.4 21.2 20.2 38.2 38.0 38.6 53 54 24.0 23.0 21.1Nekoma ND-02 28.9 21.8 20.4 39.2 39.3 40.3 51 52 24.4 23.0 20.5Omega ND-90 23.3 19.2 18.8 40.7 39.9 40.5 49 51 20.9 20.4 19.1Pembina ND-97 28.0 22.5 19.6 39.0 39.0 39.7 53 53 25.2 23.4 21.3Prairie Blue CAN-03 31.8 23.8 21.4 40.1 39.9 40.5 53 53 26.4 23.4 21.1Prairie Grande CAN-08 24.8 20.3 -- 41.0 39.9 – 46 48 19.3 18.9 --Prairie Thunder CAN-08 32.6 25.1 22.2 39.9 39.5 40.0 50 50 21.3 20.5 19.0Rahab 94 SD-94 30.8 23.1 20.0 39.6 39.3 40.2 52 53 24.4 22.1 19.8Selby SD-00 32.7 23.5 21.6 39.0 38.8 39.8 52 54 24.4 23.1 21.3Webster SD-98 28.5 23.2 20.6 39.3 39.4 40.2 53 54 27.6 25.7 23.2ExperimentalsA603 ND-exp. 23.9 18.4 -- 39.3 38.7 – 51 54 23.6 21.7 –FP2188 CAN-exp. 24.1 22.5 -- 43.3 43.0 – 48 50 22.8 22.8 –FP2214 CAN-exp. 24.4 21.4 -- 42.1 41.8 – 49 51 24.0 22.0 –N06 2055 ND-exp. 30.9 26.4 -- 39.4 39.7 – 53 54 25.2 24.4 –N06 2059 ND-exp. 27.9 20.2 -- 40.2 40.0 – 52 54 27.6 25.0 –Mean 26.7 21.3 19.7 39.7 39.4 39.7 51.0 52 24.2 22.8 20.8LSD .05 ns1 4.2 3.0 0.6 0.6 0.5 1.1 1 2.1 1.6 1.1C.V. 16.5 17.2 16.2 0.9 1.3 1.3 1.3 1.6 5.3 6.2 5.71 ns indicates that differences among the varieties were not statistically significant.Seeding dates:  2009 – May 19th; 2008 – May 8th; 2007 – no trial; 2006 – April 26thSouth Dakota State University, South Dakota counties, and U.S. Department of Agriculture cooperating. South Dakota State University  is an Affirmative Action/Equal Opportunity Employer and offers all benefits, services, education, and employment opportunities without regard for race, color, creed, religion, national origin, ancestry, citizenship, age, gender, sexual orientation, disability, or Vietnam Era  veteran status.EXEX8055 Access at http://agbiopubs.sdstate.edu/articles/ExEx8055.pdf.4Table 2.  Flax Variety CharacteristicsVariety Origin-Year-2-yrDays toFlowerSeedSizeColor Disease1ResistanceFlower Seed Wilt RustAC Hanley CAN-02 52 Med-Sm Blue Brown MR RBison ND-27 49 Med-Lrg Blue Brown MR SCarter ND-05 54 Med-Sm Blue Yellow MS RCDC Arras CAN-00 53 Med-Lrg Blue Brown R RCDC Bethune CAN-00 53 Medium Blue Brown MR RCDC Sorrel CAN-07 55 Med-Lrg Blue Brown MR RLinott CAN-66 53 Medium Blue Brown MS RMcGregor CAN-82 54 Small Blue Brown MR RNekoma ND-02 52 Med-Sm Blue Brown S ROmega ND-90 51 Medium Blue Yellow MS RPembina ND-97 53 Large Blue Brown R RPrairie Blue CAN-03 53 Small Blue Brown MR RPrairie Grande CAN-08 48 Medium Blue Brown MR RPrairie Thunder CAN-08 50 Medium Blue Brown R RRahab 94 SD-94 53 Medium Blue Brown MR RSelby SD-00 54 Medium Blue Brown MR RWebster SD-98 54 Med-Lrg Blue Brown MR RExperimentalsA603 ND-exp. 54 Med-Sm Blue Brown -- --FP2188 CAN-exp. 50 Medium Blue Brown -- RFP2214 CAN-exp. 51 Medium Blue Brown MR RN06 2055 ND-exp. 54 Large Blue Yellow -- --N06 2059 ND-exp. 54 Large Blue Yellow -- --1 R = resistant; MR = moderately resistant; MS = moderately susceptible; S = susceptible.South Dakota State University, South Dakota counties, and U.S. Department of Agriculture cooperating. South Dakota State University  is an Affirmative Action/Equal Opportunity Employer and offers all benefits, services, education, and employment opportunities without regard for race, color, creed, religion, national origin, ancestry, citizenship, age, gender, sexual orientation, disability, or Vietnam Era  veteran status.EXEX8055 Access at http://agbiopubs.sdstate.edu/articles/ExEx8055.pdf.

2006 South Dakota Flax Variety Evaluations

https://openprairie.sdstate.edu/cgi/viewcontent.cgi?article=1268&amp;context=extension_extra

2006 South Dakota Flax Variety Evaluations

Abstract

Similar works

Full text

Available Versions

Public Research Access Institutional Repository and Information Exchange