Missouri Cotton Varieties. Gene Stevens, PhD

Transcription

1 Missouri Cotton Varieties Gene Stevens, PhD

2 Lewis Rone Farm- Portageville, MO November 2017

3 Bobby Tanner April Forrester

4 Tyler Morris Heath Conaway

5 2017 Cotton Performance Testing Results Posted on two websites Averages Rankings Clarkton Portageville Clay Portageville Silt Dryland Portageville Silt Irrigated Senath Sikeston Previous Years

6 Portageville Cultivar Senath Sikeston Clarkton SL Irrig SL Non-Ir Clay Average lb lint/acre PX4A57W3FE PHY 330 W3FE PX3A99W3FE DP 1612 B2XF DP 1823NR B2XF DP 1614 B2XF DP 1522 B2XF Winfield 17XC8 B3XF PHY 340 W3FE DP 1725 B2XF PX3A82W3FE ST 4946GLB PHY 312 WRF PX3A96W3FE DP 1820 B3XF DG 3385 B2XF PHY 300 W3FE ST 5020GLT DP 1518 B2XF NG 3406 B2XF ST 5517GLTP

7 Portageville Senath Sikeston Clarkton SL Irrig SL Non-Ir Clay Average lb lint/acre ST 4949GLT PX4A54W3FE CG 3475 B2XF CG 3572 B2XF PX4A52W3FE ST 4848GLT PHY 444 WRF PX4A62W3FE NG 3522 B2XF DG 3109 B2XF CPS16214 B2XF NG 4601 B2XF CPS17330 B3XF UA NG 3699 B2XF PX2A28W3FE PHY 490 W3FE PHY 450 W3FE CPS D B2XF BRS BRS BRS Grand Mean LSD CV (%)

8 Conversation with my boss Winter University of Tennessee Gene: My Dad wants to know what cotton variety he should plant next year. Phillip Hoskinson: Hmm. Tell your father that will depend on the weather. If I knew what the weather is going to be, then I could tell him the best cotton variety to plant.

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11 Johanna Nelson Josh Harrington

12 On-farm large plot trials Lewis Rone Farm, Portageville Variety Lint, lb/a Turnout DG 3385 B2XF CG 3527 B2XF DP 1614 B2XF NG 4601 B2XF PHY 330 W3FE DP 1518 B2XF CG 3475 B2XF PHY 340 W3FE DG 3109 B2XF ST 5020 GLT ST 4949 GLT NG 3522 B2XF Gregg Mayberry Farm, Bernie Variety Lint, lb/a Turnout DP 1614 B2XF CG 3527 B2XF NG 3522 B2XF DG 3385 B2XF DG 3109 B2XF CG 3475 B2XF DP 1518 B2XF NG 4601 B2XF

13 Clarkton Nematode Trial Susceptible- PHY 333, PHY 312, DP 1518, DP 1614, ST4848 Resistant- 16R225NRB2XF, 16R228NRB2XF, PX3308CBW3FE, ST4946GLB2 Treatments- Untreated Check (UTC), Telone, Velum Visual root galls and nematode counts- Dagger, Lance, Lesion, Ring, Reniform, Stubby Root, Stunt, Root-Knot, Sheath

14 Lines with some nematode resistance ID Application Root galls Lesion Root-Knot Lint yield (1 to 5) ---nematodes per 100 cc soil--- lb/acre R1 UTC bcd 11 c 711 abc R1 Telone a 17 c 751 abc R1 Velum cd 9 c 501 cdefghi R2 UTC abc 0 c 469 cdefghi R2 Telone ab 2 c 852 a R2 Velum cd 0 c 324 ghi R3 UTC abcd 4 c 529 cdefghi R3 Telone bcd 8 c 605 abcdefg R3 Velum bcd 0 c 754 abc R4 UTC bcd 31 c 276 i R4 Telone bcd 254 ab 598 abcdefgh R4 Velum cd 21 c 414 defghi R5 UTC bcd 0 c 392 defghi R5 Telone bcd 8 c 660 abcde R5 Velum bcd 29 c 550 bcdefghi UTC= Untreated check. Values followed by the same letter were not significant at the 0.05 level. Resistant varieties: R1=16R225NRB2XF, R2=16R228NRB2XF, R3=PX3308CBW3FE, R4=ST4946GLB2, R5=PX4699CBW3FE

15 Lines susceptible to nematodes ID Application Root galls Lesion Root-Knot Lint yield (1 to 5) ---nematodes per 100 cc soil--- lb/acre S1 UTC abcd 92 abc 313 hi S1 Telone bcd 30 c 679 abcd S1 Velum cd 25 c 630 abcdef S2 UTC abcd 76 abc 652 abcdef S2 Telone bcd 23 c 831 ab S2 Velum d 38 c 541 bcdefghi S3 UTC bcd 180 abc 277 i S3 Telone bcd 206 abc 356 fghi S3 Velum cd 75 bc 375 efghi S4 UTC abcd 186 abc 374 efghi S4 Telone abcd 277 a 629 abcdef S4 Velum bcd 61 bc 308 hi S5 UTC bcd 115 abc 448 defghi S5 Telone abcd 250 ab 637 abcdef S5 Velum bcd 100 abc 375 efghi UTC= Untreated check. Values followed by the same letter were not significant at the 0.05 level. Susceptible varieties: S1=PHY333, S2=PHY312,S3= DP1518, S4= DP1614, S5= ST4838

16 target soil K level- critical value where adding more K will not increase cotton yield, varies by soil texture. target lb K= x CEC Fisher Delta Research Center College of Agriculture, Food, and Natural Resources delta.cafnr.org

17 Soil test K, lb K per acre Potassium soil test results- May Wardell, MO silt loam 2006 Buildup Preplant Years Potash lb/a Fertility Buildup Program, Years

18 Cotton lint, lb acre-1 Yields- building low test K field Wardell, MO silt loam Buildup program, years

19 cotton specialists study end of three year evaluation funded by Cotton Inc. dry and liquid fertilizer (0, 40, 80, 120, 160 lb K 2 O/acre) wide range of initial soil potassium levels represented across test locations in other states. Missouri potassium experiment is on Lee Farm. Soil test K is on border between medium and high.

20 Seasonal K fluctuations Ted Peck, University of IL, sampled

21 Potassium soil test, lb K/acre Test results- moisture and temp Soil collected from Delta Center cotton field 2 week incubations before drying and testing Cold 20 o F night (freezer), 40 o F day (refrigerator) Hot 120 o F night (incubator), 90 o F day (incubator) Ambient 75 o F Field Cap, Cold/Hot Field Cap, Ambient Temp Air dry, Ambient Temp

22 past yields Broadcast Injected Fertilizer, lb K 2 O 2015 lint/ac 2016 lint/acre 2015 lint/acre 2016 lint/acre No significant difference in cotton yields found at 0.05 level in 2015 or 2016.

23 2017 Broadcast Injected 256 Fertilizer, lb K 2 O Soil test, lb K Yield, lb lint/acre± Soil test, lb K Yield, lb lint/ acre Sampled Nov 17, tested at Delta Lab with ammonium acetate extraction solution. Based on 7.2 meq/100g current K soil target is 256 lb K/acre. ± No significant difference in yield was found at 0.05 level.

24 Search Committee is working to find cotton research scientist. Started immunotherapy treatments for cancer two weeks ago. Finished children book Cotton Tales