Sweet Corn VarietiesReport on 2007 Trials

in Northern IndianaPresented at Vegetable Variety Showcase

Nov. 29, 2007

Liz MaynardNW Commercial Horticulture ProgramPurdue University, Westville, IN 46391

emaynard@purdue.edu

3

Pollination GroupsII. SU and SE

sugarysugar-enhanced

synergisticTablesweet™TripleSweet™

SweetGeneration™

III. SH2supersweetaugmentedsupersweetXtra-Tender

BrandGourmet Sweet

BrandMultisweet™

Mirai™

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Homozygous se and Synergistic Varieties 2007 Trial at PPAC, Wanatah, Indiana

Tracy Sandy Loam soilFertilizer: 20 lb./A N at planting, 70 lb./A N sidedressedWeed control with atrazine and Dual II Magnum, cultivation, hand-

weedingIrrigation as needed, Insecticide at planting.Single-row plots 30 ft. long, 3 replications, randomized blockPlanted May 2, 2007Emergence determined 14 and 21 DAP, thinned to 20,328/acre.Each plot harvested when marketable.Marketable ear number and weight, length, width and shank

length of 3 husked ears, ratings for husk cover, husktightness, tip fill, overall ear quality, flavor, ear height,tillering, vigor

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2007 SweetCorn Plot at

Pinney-Purdue Ag

Center

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•Marketable ear number and weight•Length, width and shank length of 3 ears•Ratings for husk cover, husk tightness, tipfill, overall ear quality, flavor, plant height,ear height, tillering, vigor

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Husk Cover:Length of Husk Beyond Ear

5 4 23 1

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Tip Fill EvaluationTip Fill: Length of Cob not Filled

5 4 35= 0 in.4= 0 to 1/2 in.3= 1/2 to 1 in.2= > 1 in.1= > 2 in.

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Flavor Evaluation Raw Corn

2 people, in field, at harvestpoor, med, good, very good,excellent

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79 synergistic

Polka Doz./A T/A Lgth Dia HC TF FL1339 4.7 7.0 1.8 2.9 4.3 VG-G

PPAC2007

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79 SweetGeneration™

Revelation Doz./A T/A Lgth Dia HC TF FL1533 6.3 7.3 1.9 3.1 4.2 VG-G

PPAC2007

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79 se se

Navajo Doz./A T/A Lgth Dia HC TF FL1533 7.1 7.0 1.9 4.9 4.9 M

PPAC2007

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79 synergisticValor

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1517 6.0 7.0 1.8 3.8 4.1 M-VG

14

82 synergistic

Dasher Doz./A T/A Lgth Dia HC TF FL1323 5.2 7.0 1.8 3.7 4.6 VG

PPAC2007

white

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BC 0808

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1581 8.5 8.2 2.0 2.6 4.9 M-G84 TriplesweetTM

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86 synergisticKristine

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1291 6.2 7.4 1.9 3.2 4.2 G-VG

17

Gateway

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1339 6.2 8.0 1.8 2.1 4.2 VG-E86 TripleSweetTM

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90 TripleSweetTM

BC 0805

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1597 8.0 7.8 1.8 4.9 4.0 G

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90 synergisticMontauk Doz./A T/A Lgth Dia HC TF FL

1291 7.3 8.2 2.0 3.2 4.7 VG-E

PPAC2007

20

Cameo Doz./A T/A Lgth Dia HC TF FL1258 6.6 8.4 2.0 2.6 3.6 M-VG

PPAC2007

90 synergistic

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Supersweet Varieties 2007 Trial at PPAC, Wanatah, Indiana

Planted May 9, 2007.

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GSB 274A81 augmented sh2

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1291 6.5 7.9 2.0 2.6 4.9 VG

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81 augmented sh2GSB 2171

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1500 6.2 7.5 1.9 2.3 5.0 M-VG,S-VT

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82 augmented sh2

Fantastic

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1613 7.3 7.4 2.0 2.8 5.0 VG

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Cascade83 augmented sh2

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1355 5.3 7.1 1.8 4.4 5.0 G-VG

white

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Optimum83 augmented sh2

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1517 6.2 7.2 1.9 4.4 5.0 VG-E

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Optimum R.83 augmented sh2

PPAC2007

Doz./A T/A Lgth Dia HC TF FL1565 6.7 7.3 1.9 4.2 4.9 VG

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BSS 098284 sh2

Doz./A T/A Lgth Dia HC TF FL1500 6.4 7.9 1.8 2.9 4.1 G-E,ST-T

PPAC2007

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Surpass85 augmented sh2

Doz./A T/A Lgth Dia HC TF FL1484 6.2 7.4 1.8 5.0 4.3 VG

PPAC2007

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GSB 228186 augmented sh2

Doz./A T/A Lgth Dia HC TF FL1581 7.9 7.6 1.9 3.1 4.9 G,ST-T

PPAC2007

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Garrison88 sh2

Doz./A T/A Lgth Dia HC TF FL1646 8.2 7.8 1.9 3.7 4.1 M/T-VT

PPAC2007

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Holiday90 augmented sh2

Doz./A T/A Lgth Dia HC TF FL1404 7.1 8.0 2.0 4.0 4.3 G-E

PPAC2007

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Tasting Trial seeded June 26 - July 10Harvested Sept. 11Evaluated at twilight meeting

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Taste Evaluation Results

171.33.6Kristine

261.13.8Ambrosia

221.23.8Holiday

161.03.8BSS 0983

190.93.8Cascade

110.84.2GSB 274A

250.84.4OptimumNStd. Dev.MeanCultivar

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Taste Evaluation Results, cont.

161.32.0GSB 2281130.92.7BC 0808201.12.7Navajo151.13.2BC 0805261.13.4Revelation191.13.4GSB 2171160.93.6Montauk181.13.6PolkaNStd. Dev.MeanCultivar

Liz Maynard, Ph.D.NW Commercial Horticulture ProgramPurdue University, Westville, IN 46391emaynard@purdue.eduwww.hort.purdue.edu/fruitveg

With thanks to:Jon Leuck, Mark O’Neal, Dave Eichelberger at PPAC;Natalia DeFrank, James Sheets, Rick Shay, Bob rhodaNWCH; Master Gardenera, Seed Companies

CrookhamHarris Moran

SyngentaStokes