Managing peanut varieties. Barry L. Tillman
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1 Managing peanut varieties Barry L. Tillman
2 Outline of Topics Varieties for what s available Plant stand Variety Performance Newer Varieties TUFRunner 297, TUFRunner 511, Georgia-12Y, Georgia- 13M, Georgia-14N Varieties on the horizon TifNV-High O\L, Georgia-16HO, FloRun 331, AU-NPL 17 Managing varieties Disease resistance / susceptibility Can we reduce costs? Disease management Cultural practices Fungicides
3 Seed Availability
4 Varieties available based on Sheller survey Birdsong Brooks Damascus Forrester Golden McClesky Cunningham Sessions Total Certified Acreage Variety AU-NPL 17 In Foundation production in FloRun 7 Limited 128 FloRun 331 In Foundation production in Georgia Greener Limited 213 Georgia-06G 148,629 Georgia-07W Limited 173 Georgia-09B 12,347 Georgia-12Y Limited Limited Limited 1,657 Georgia-13M Limited 72 Georgia-14N 3,680 Georgia-16HO Limited Limited Limited Limited 397 Tifguard 7,703 TifNV-High O/L Limited Limited 155 TUFRunner 297 2,058 TUFRunner 511 2,173
5 Certified Seed Production, AL, FL, GA 2017
6 Seed Production in 2017 for 18 crop Plenty of Georgia-06G, Georgia-09B Moderate supply/on the Increase Tifguard Georgia-14N TUFRunner 511 TUFRunner 297 Georgia-12Y Limited supply of ( acres) FloRun 331 Georgia-16HO TifNV-High O/L Seed Increase of (30 acres) AU-NPL 17
7 Plant Stand
8 Yield maximized at 2.5 plants/ft Similar average yield 257 lbs/a difference
9 With high germination (90%+), between 65% and 75% of seed will survive to a healthy plant Plant population as affected by seeding density, near Marianna, Florida. Plant population Seeding Emerged plants Tap roots density plants/ft sd/ft 4.7a 4.1a 4 sd/ft 3.4b 3.0b Seed to plant survival (%) 6 sd/ft 78% 68% 4 sd/ft 84% 74%
10 Plant stand and replanting Germination plant stand i.e., 90% germ. seed to get 9 plants At best 90% germination = about 7 plants per seeds 6 seeds/foot = 4 67% total efficiency (includes dead seed) Why? o o o Soil conditions wet, cool, dry Seed vigor- production, storage, shelling, etc. Cultivar- some better than others Minimum germination by law is 75% Replant if stand less than 2.5/ft Depends on uniformity too
11 Variety Performance
12 University of Florida SWVT Similar average yield 194 lbs/a difference
13 University of Florida SWVT Similar average yield 194 lbs/a difference
14 University of Georgia SWVT Similar average yield 300 lbs/a difference
15 Auburn University VT
16 Mississippi State University SWVT Similar average yield 400 lbs/a difference
17 6000 Clemson University VT Clemson University Variety Trial - Blackville, SC 77 Pod Yield (lbs./acre) Total Sound Mature Kernels (%) 0 65 Yield TSMK **High Oleic
18 Disease Resistance If fields have a history of white mold, Peanut Rx 2018 Version use variety with -15 points on Peanut Rx: Florida-07,Georgia-07W, Tifguard Variety 1 Spotted Wilt Leaf Spot White mold Florida FloRun TM FloRun TM Georgia-06G Georgia-07W Georgia-09B Georgia-12Y 5 15 Georgia-13M Georgia-14N Georgia-16HO Tifguard TifNV-HiOL TUFRunner TM TUFRunner TM
19 Do current cultivars have sufficient TSWV resistance to minimize risk of early planting? Not without combining with other risk factors Thimet Plant stand 4/foot Twin rows Resistant cultivar ( points or less) Georgia Greener, Georgia-06G, Florida-07, Tifguard, Georgia-07W, Georgia-07W Why? Spotted Wilt
20 2016 UGA Disease Evaluations- Dr. Brenneman MULTI-STATE DISEASE EVALUATION, 2016 TSWV 1 LEAF SPOT 2 WHITE MOLD 3 Percent 4 YIELD GENOTYPE 31-Aug 21-Sep 11-Oct NO ZEROES ALL Zeroes (LB/A) FloRun TM '331' TIFNV HIO/L Georgia-12Y TUFRunner ' 297' Georgia-14N TUFRunner ' 511' Georgia-13M Georgia-06G LSD (P<0.05)
21 2017 UGA Disease Evaluations- Dr. Brenneman Multi-State Disease Evaluations, 2017 TSWV 4 Leaf Spot 3 White Mold 2 Percent 1 Yield Entries 14-Sep 4-Oct No Zeroes All Zeroes (lb/a) Georgia-12Y TIFNV HI O/L FloRun Georgia-16HO Georgia-14N Georgia-17SP TUFRunnner Georgia-06G Georgia-13M AU-NPL LSD (P<0.05)
22 Pod yield (lbs./acre) Spotted Wilt Thimet (TH) compared to no Thimet (NT) Tifton, GA 2016, Dr. Albert Culbreath, UGA Incidence of spotted wilt (%) Yield- NT Yield-TH TSWV-NT TSWV-TH
23 Spotted Wilt Thimet (TH) compared to no Thimet (NT) Tifton, GA 2017, Dr. Albert Culbreath, UGA
24 Pod yield (lbs./acre) Spotted Wilt Spotted wilt genotype test, Dr. Culbreath, UGA Tifton Yield TSW Spotted wilt incidence (%) 0 FloRun 331 TUFRunner 297 Georgia-06G Georgia-12Y Georgia-14N 0
25 TSWV infected 40-70% of Florida-07 and Georgia Green plants most without symptoms 0 TSWV Infected (%) Positive for TSWV A B C C 4 Rx= Rx= 30 UFT312 FLEP113 FL07 GAGreen
26 White Mold
27 White mold tests sprayed with Bravo 7-8 times Rx=-15 Rx=15-20 Rx=20-25 Similar average yield ~500 lbs/a difference
28 Leaf spot tests- 0, 4, and 8 sprays University of Florida Leaf spot tests 11 9 Pod Yield (lbs./acre) Rx= Rx= Rx= **High Oleic No Spray 4 Sprays 8 Sprays
29 Disease Resistance If fields have a history of white mold, Peanut Rx 2018 Version use variety with -15 points on Peanut Rx: Florida-07,Georgia-07W, Tifguard Variety 1 Spotted Wilt Leaf Spot White mold Florida FloRun TM FloRun TM Georgia-06G Georgia-07W Georgia-09B Georgia-12Y 5 15 Georgia-13M Georgia-14N Georgia-16HO Tifguard TifNV-HiOL TUFRunner TM TUFRunner TM
30 How would I manage: Variety Planting Thimet Twin Rows Georgia-06G May 1-31 if planting earlier than May Yes, especially if planting before May White mold program Early season Yes, especially if planting early Mid season May need more than folicur if weather conditions warrant: Convoy, Elatus, Fontelis, Alto+Abound, Evito, Provost,etc. Leaf spot program Bravo and Folicur (or generic equivalents) are okay espeically if rotation is 2 years or more Georgia-12Y April 15- May 31 if planting earlier than May Probably not needed for spotted wilt control May not be needed Okay with Bravo and Folicur (or generic equivalents), especially if rotation is 2 years or more Bravo and Folicur (or generic equivalents) are okay especially if rotation is 2 years or more
31 How would I manage: Variety Planting Thimet Twin Rows White mold program Early season Mid season Leaf spot program Georgia-09B May - 31 use on all plantings Yes, especially if planting before May Yes, especially if planting early Will likely benefit from Convoy, Elatus for WM control Will likely benefit from fungicides with better activitiy on LS: Priaxor, Elatus, Alto+Abound, Fontelis, Evito, Provost, etc. Georgia-13M April 15- May 25 if planting earlier than May Yes, especially if planting before May Yes, especially if planting early Will likely benefit from Convoy, Elatus for WM control Need to use fungicides with better activitiy on LS: Priaxor, Elatus, Alto+Abound, Fontelis,, Evito, Provost, etc
32 Variety Planting TUFRunner 511 TUFRunner 297 May - 25 May 1-25 How would I manage: Thimet Twin Rows use on all plantings if planting earlier than May White mold program Early season Yes, Probably especially if planting before May needed only if high risk of white mold Yes, Probably especially if needed only planting if high risk of before May white mold Mid season Probably okay with Bravo and Folicur (or generic equivalents), especially if rotation is 2 years or more Probably okay with Bravo and Folicur (or generic equivalents), especially if rotation is 2 years or more Leaf spot program Need to use fungicides with better activity on LS: Priaxor, Elatus, Alto+Abound, Fontelis, Evito, Provost, etc If risk is high, will benefit from fungicides with better activity on LS: Priaxor, Elatus, Alto+Abound, Fontelis, Evito, Provost, etc. If risk is low, may be okay with Bravo,
33 How would I manage: Variety Planting Thimet Twin Rows Georgia-14N May 1- May 31 if planting earlier than May Yes, especially if planting before May White mold program Early season Mid season Probably needed only if high risk of white mold Probably okay with Bravo and Folicur (or generic equivalents), especially if rotation is 2 years or more Leaf spot program Bravo and Folicur (or generic equivalents) are okay espeically if rotation is 2 years or more Tifguard May 1- May 31 if planting earlier than May Yes, especially if planting before May Probably needed only if high risk of white mold Probably okay with Bravo and Folicur (or generic equivalents), especially if rotation is 2 years or more Bravo and Folicur (or generic equivalents) are okay especially if rotation is 2 years or more
34 How would I manage: Variety Planting Thimet Twin Rows FloRun TM 331 TifNV-HiOL May - May 31 May 1- May 31 if planting earlier than May if planting earlier than May Yes, especially if planting before May Yes, especially if planting before May White mold program Early season Mid season Probably needed only if high risk of white mold Probably needed only if high risk of white mold Probably okay with Bravo and Folicur (or generic equivalents), especially if rotation is 2 years or more Probably okay with Bravo and Folicur (or generic equivalents), especially if rotation is 2 years or more Leaf spot program Bravo and Folicur (or generic equivalents) are okay especially if rotation is 2 years or more, but will benefit from stronger fungicides Bravo and Folicur (or generic equivalents) are okay especially if rotation is 2 years or more
35 Peanut Field Day- Marianna August 23, 2018
Managing peanut varieties. Barry L. Tillman
Managing peanut varieties Barry L. Tillman Outline of Topics Plant stand Varieties for 2018- what s available Variety Performance Newer Varieties TUFRunner 297, TUFRunner 511, Georgia-12Y, Georgia- 13M,
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