Sweet Corn Variety Performance Liz Maynard and Erin BluhmDepartment of Horticulture and Landscape ArchitectureJan. 4, 2018Illiana Vegetable Growers SymposiumSchererville, 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 1260 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° F0.2°F above normal

Total Precipitation: 11.53 inches0.27 inches above normal

Growing Degree Days: 166653 above normal

Source : USDA NASS 2017 Indiana Crop Progress and Condition report

Harris Moran

Rosie Elle (y) Raquel Kate Cumberland

Syngenta

BSS 0761 BSS 1075 BSS 8021WSS 8072 (w)

Crookham

Yellowstone (y) Everglades Eden (w)Nirvana CAPBF 12-525 CSHBP 13-672AP 426

Stokes

AnthemAmerican DreamHero XR

sh2 – supersweet

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

8627

Good early vigor (>6.7): Anthem, Hero XR, Rosie, Raquel, YellowstoneLow early vigor (<4.3): BSS 0761, Eden, AP 426, Nirvana

Hero XR

• Days to Harvestpredicted 71 actual 76

• Marketable Ears1,404 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 Harvestpredicted 72 actual 76

• Marketable Ears1,145 doz./A7.5 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 Harvestpredicted 74actual 76-78

• Marketable Ears1,533 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

• Days to Harvestpredicted 77 actual 78-80

• Marketable Ears1,258 doz./A 5.4 ton/A

• Average Ear weight 0.74 lb.length 6.75 in.diam. 1.89 in.

American Dream

HC 3.8 TF 4.4 64.6% Fancy EVigor 5.3

JRTICULT RE & L NDSCAPE ARCHITECTURE

Anthem

• Days to Harvestpredicted 73actual 78-80

• Marketable Ears1,242 doz./A 6.6 ton/A

• Average Ear weight 0.91 lb.length 7.61 in.diam. 2.06 in.

HC 4.0 TF 4.8 72.1% Fancy EVigor 8.3 I

Anthem

J RTIC U LPTEI!: ~tH ITECT URE L NDSCA

Rosie

• Days to Harvestpredicted 74actual 78-80

• Marketable Ears1,194 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 Harvestpredicted 77actual 78-80

• Marketable Ears1,210 doz./A 7.3 ton/A

• Average Ear weight 1.01 lb.length 7.94 in.diam. 2.04 in.

HC 3.6 TF 5.0 75.3% Fancy EVigor 6.3 f

Cumberland

JRTICULT RE & L NDSCAPE ARCHITECTURE

CAPBF 12-525

• Days to Harvestpredicted 72 actual 78-80

• Marketable Ears1,323 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 Harvestpredicted 76 actual 80-83

• Marketable Ears1,629 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

14

Everglades

JRTICULT RE & L NDSCAPE ARCHITECTURE

Kate

• Days to Harvestpredicted 77actual 80-85

• Marketable Ears1,339 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 v-

Kate

~11. 601. '/18 . sos

ULTURE & .APE ARCHITECTURE

BSS 8021

• Days to Harvestpredicted 78 actual 80-85

• Marketable Ears1,162 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

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AP 426

• Days to Harvestpredicted 78 actual 80-85

• Marketable Ears1,533 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 Harvestpredicted 80 actual 80-87

• Marketable Ears1,210 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 Harvestpredicted 80actual 85-87

• Marketable Ears1,242 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

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PURDUE I HORTICULTURE & EXTENSION LANDSCAPE ARCHITECTURE

BSS 1075

• Days to Harvestpredicted 77actual 85-87

• Marketable Ears1,468 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 Harvestpredicted 76 actual 80-83

• Marketable Ears1,500 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 Harvestpredicted 78 actual 83-87

• Marketable Ears1,307 doz./A8.3 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 Harvestpredicted 75actual 76-80

• Marketable Ears1,629 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 Harvestpredicted 78 actual 83

• Marketable Ears1,210 doz./A 6.6 ton/A

• Average Ear weight 0.91 lb.length 7.63 in.diam. 1.97 in.

WSS 8072

HC 4.0 TF 4.9 65.8% Fancy EVigor 6.3

wss 8072

SW. 604, 701. $09

JRTICULT RE & L NDSCAPE ARCHITECTURE

Acknowledgments

Seed CompaniesCrookhamHigh Mowing SeedsHM ClauseStokesSyngenta

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-Wor

tinyurl.com/mwvtr