Sweet Corn Variety Performance Liz Maynard and Erin Bluhm Department of Horticulture and Landscape Architecture Jan. 4, 2018 Illiana Vegetable Growers Symposium Schererville, Indiana
Where : Pinney Purdue Agriculture Center in Wanatah, IN Supersweets (sh2) planted May 16, first harvest July 31 Sugar-enhanced/synergistic (se) planted May 30, first harvest Aug 4 Tracy Sandy Loam soil Fertilizer : 40 lbs./a preplant from urea on April 12 60 lbs./a N sidedress from UAN on June 7 (no P or K based on Fall 2016 soil testing) Population 20,328 plants per acre (intended) Single-row plots 30 ft. long, 30 in. apart, 3 replications, randomized block design
PPAC Weather Summary 2017 May 15 August 6 Average temp: 69.5 F 0.2 F above normal Total Precipitation: 11.53 inches 0.27 inches above normal Growing Degree Days: 1666 53 above normal Source : USDA NASS 2017 Indiana Crop Progress and Condition report
sh2 supersweet Harris Moran Syngenta Crookham Stokes Rosie BSS 0761 Yellowstone (y) Anthem Elle (y) BSS 1075 Everglades American Dream Raquel BSS 8021 Eden (w) Hero XR Kate WSS 8072 (w) Nirvana Cumberland CAPBF 12-525 CSHBP 13-672 AP 426
Grading and Weighing Number and weight of all marketable and fancy ears Husk cover Husk tightness Tip fill Flag length Overall attractiveness Ear diameter Ear length Shank length Ear flavor and (sh2 only) pericarp toughness
Tip Fill : length of cob not filled 5 = 0 4 = 0 to ½ 3 = ½ to 1 2 = < 1 1 = > 2
Husk Cover : length of Husk beyond Ear 5 = > 2 4 = 1 ¼ to 2 3 = ¾ to 1 ¼ 2 = < ¾ 1 = Ear exposed
Early Vigor Rating: 1 (low) to 9 (high) Scale 7 2 6 8 Good early vigor (>6.7): Anthem, Hero XR, Rosie, Raquel, Yellowstone Low early vigor (<4.3): BSS 0761, Eden, AP 426, Nirvana
Hero XR Days to Harvest predicted 71 actual 76 Marketable Ears 1,404 doz./a 7.8 ton/a Average Ear weight 0.92 lb. length 7.22 in. diam. 1.90 in.
HC 5.0 TF 4.9 91.3% Fancy EVigor 8.3 Hero XR JRTICULh.JRE & L NDSCAPE ARCHITECTURE
Raquel Days to Harvest predicted 72 actual 76 Marketable Ears 1,145 doz./a 7.5 ton/a Average Ear weight 1.10 lb. length 8.58 in. diam. 2.14 in.
HC 3.4 TF 4.7 62.3% Fancy EVigor 6.7 Raquel JRTICULh.JRE & L NDSCAPE ARCHITECTURE
Nirvana Days to Harvest predicted 74 actual 76-78 Marketable Ears 1,533 doz./a 7.1 ton/a Average Ear weight 0.77 lb. length 7.75 in. diam. 1.96 in.
HC 2.9 TF 4.3 39.9% Fancy EVigor 4.3 Nirvana HORTICULTURE & LANDSCAPE ARCHITECTURE
American Dream Days to Harvest predicted 77 actual 78-80 Marketable Ears 1,258 doz./a 5.4 ton/a Average Ear weight 0.74 lb. length 6.75 in. diam. 1.89 in.
HC 3.8 TF 4.4 64.6% Fancy EVigor 5.3 JRTICULT RE & L NDSCAPE ARCHITECTURE
Anthem Days to Harvest predicted 73 actual 78-80 Marketable Ears 1,242 doz./a 6.6 ton/a Average Ear weight 0.91 lb. length 7.61 in. diam. 2.06 in.
I HC 4.0 TF 4.8 72.1% Fancy EVigor 8.3 Anthem J RTIC U LPTEI!: ~th ITECT URE L NDSCA
Rosie Days to Harvest predicted 74 actual 78-80 Marketable Ears 1,194 doz./a 8.0 ton/a Average Ear weight 1.11 lb. length 8.06 in. diam. 2.21 in.
HC 3.6 TF 3.8 68.5% Fancy EVigor 6.7 JRTICULh.JRE & L NDSCAPE ARCHITECTURE
Cumberland Days to Harvest predicted 77 actual 78-80 Marketable Ears 1,210 doz./a 7.3 ton/a Average Ear weight 1.01 lb. length 7.94 in. diam. 2.04 in.
f HC 3.6 TF 5.0 75.3% Fancy EVigor 6.3 Cumberland JRTICULT RE & L NDSCAPE ARCHITECTURE
CAPBF 12-525 Days to Harvest predicted 72 actual 78-80 Marketable Ears 1,323 doz./a 7.1 ton/a Average Ear weight 0.90 lb. length 7.71 in. diam. 2.00 in.
HC 3.7 TF 4.1 56.8% Fancy EVigor 4.7 JRTICULT RE & RE L NDSCAPE ARCHITECTU
Everglades Days to Harvest predicted 76 actual 80-83 Marketable Ears 1,629 doz./a 8.3 ton/a Average Ear weight 0.85 lb. length 7.89 in. diam. 1.94 in.
HC 3.6 TF 4.0 54.4% Fancy EVigor 8.0 Everglades 14 JRTICULT RE & L NDSCAPE ARCHITECTURE
Kate Days to Harvest predicted 77 actual 80-85 Marketable Ears 1,339 doz./a 8.4 ton/a Average Ear weight 1.05 lb. length 7.79 in. diam. 2.10 in.
- HC 4.1 TF 3.9 68.8% Fancy EVigor 6.3 Kate ~11. 601. '/18. sos ULTURE &.APE ARCHITECTURE
BSS 8021 Days to Harvest predicted 78 actual 80-85 Marketable Ears 1,162 doz./a 6.4 ton/a Average Ear weight 0.92 lb. length 7.44 in. diam. 1.88 in.
HC 4.7 TF 5.0 76% Fancy EVigor 4.7 BSS 8021 515, 618, 713. 808 [ I l s 8-q- 11 0\l ~mili:"":"'.:11---- ~--IJS!lllllm!IPt E x T E N s 1 ON PURDUE I HORTICULTURE & l AN 0 SCAPE ARCHITECTURE
AP 426 Days to Harvest predicted 78 actual 80-85 Marketable Ears 1,533 doz./a 8.7 ton/a Average Ear weight 0.95 lb. length 7.64 in. diam. 1.94 in.
HC 5.0 TF 4.2 80.8% Fancy EVigor 4.3 AP426 J RTIC U LTEI!: ~th ITECT URE L NDSCAP
CSHBP 13-672 Days to Harvest predicted 80 actual 80-87 Marketable Ears 1,210 doz./a 10.3 ton/a Average Ear weight 1.42 lb. length 9.21 in. diam. 2.10 in.
HC 3.9 TF 3.9 84.7% Fancy EVigor 6.3 CSH BP 13-672 PURDUE I HORTICULTURE & EXTENSION LANDSCAPE ARCHITECTURE
BSS 0761 Days to Harvest predicted 80 actual 85-87 Marketable Ears 1,242 doz./a 7.7 ton/a Average Ear weight 1.03 lb. length 7.75 in. diam. 2.03 in.
HC 3.7 TF 4.2 67.6% Fancy EVigor 2.7 BSS 0761 509 61'/ 708, 80b '---~ PURDUE I HORTICULTURE & EXTENSION LANDSCAPE ARCHITECTURE
BSS 1075 Days to Harvest predicted 77 actual 85-87 Marketable Ears 1,468 doz./a 9.0 ton/a Average Ear weight 1.03 lb. length 7.82 in. diam. 2.00 in.
HC 3.8 TF 4.7 52.6% Fancy EVigor 4.7 501. 620. 707, 807 t lrticulture & AijOSCAPE ARCHITECTURE
Yellowstone Days to Harvest predicted 76 actual 80-83 Marketable Ears 1,500 doz./a 7.9 ton/a Average Ear weight 0.88 lb. length 7.54 in. diam. 1.86 in.
HC 4.3 TF 4.3 65.8% Fancy EVigor 6.7 JRTICULT RE & L NDSCAPE ARCHITECTURE
Elle Days to Harvest predicted 78 actual 83-87 Marketable Ears 1,307 doz./a 8.3 ton/a Average Ear weight 1.06 lb. length 8.13 in. diam. 2.03 in.
HC 3.8 TF 4.0 64.8% Fancy EVigor 4.7 Elle s1e. 611. 706. eoi
Eden Days to Harvest predicted 75 actual 76-80 Marketable Ears 1,629 doz./a 7.1 ton/a Average Ear weight 0.72 lb. length 7.56 in. diam. 1.97 in.
HC 3.1 TF 3.9 28.2% Fancy EVigor 4.3 Eden 513. 607. 71 }, 815 J RTIC U LPTEI! ~ ~th ITECT URE L NDSCA "
WSS 8072 Days to Harvest predicted 78 actual 83 Marketable Ears 1,210 doz./a 6.6 ton/a Average Ear weight 0.91 lb. length 7.63 in. diam. 1.97 in.
HC 4.0 TF 4.9 65.8% Fancy EVigor 6.3 wss 8072 SW. 604, 701. $09 WSS 8072 JRTICULT RE & L NDSCAPE ARCHITECTURE
Acknowledgments Seed Companies Crookham High Mowing Seeds HM Clause Stokes Syngenta Pinney Purdue Ag Center Staff and Vegetable Crew Full report available online at the Purdue Education Store, edustore.purdue.edu/item.asp?item_number=16-18-17-w or tinyurl.com/mwvtr