Corn Seeding Solutions | Corn Seed Guide | UFA Co-operative Ltd.

Corn Seed Varieties

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Pride Seeds

A3993G2 RIB

AS1017RR EDF

A4199G2 RIB

A4414RR

A4705HMRR

A4514RR - NEW!

A4646G2 RIB

AS1027RR EDF - NEW!

A4939G2 RIB

AS1037RR EDF

AS1047RR EDF

A5432G2 RIB

Pickseed

PS 2262 RR

PS 2210 VT2P RIB

PS 2320 RR

PS 2333 RR

PS 2420 RR

PS 2444 VT2P

PS 2563 GSX RIB - NEW!

PS 2552 RR

PS ExSeed LF RR

PS ExPand LF RR - NEW!

DEKALB

DKC23-17RIB

DKC23-21

DKC26-40RIB

DKC27-55RIB

DKC29-88 - NEW!

DKC29-89RIB

DKC30-07RIB

DKC33-78RIB

DKC32-12RIB

DKC35-88RIB

DKC34-57RIB

A3993G2 RIB

CHU

2025

Trait

VT2PRIB

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Very Good

Plant Height

Medium

Test Weight

Excellent

Milk/Acre

N/A

Best End Use

Grain, Grazing

AS1017RR EDF

CHU

2100

Trait

RR

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Very Tall

Test Weight

N/A

Milk/Acre

Very Good

Best End Use

Silage, Grazing

A4199G2 RIB

CHU

2150

Trait

VTPRIB

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Good

Plant Height

Medium

Test Weight

Very Good

Milk/Acre

N/A

Best End Use

Grain, Grazing

A4414RR

CHU

2150

Trait

RR

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Tall

Test Weight

Excellent

Milk/Acre

Very Good

Best End Use

Grain, Silage, Grazing

A4705HMRR

CHU

2250

Trait

RR

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Tall

Test Weight

Excellent

Milk/Acre

Very Good

Best End Use

Silage, Grazing

A4514RR - NEW!

CHU

2250

Trait

RR

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Very Good

Plant Height

Medium Tall

Test Weight

Very Good

Milk/Acre

Very Good

Best End Use

Grain, Silage, Grazing

A4646G2 RIB

CHU

2300

Trait

VT2PRIB

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Very Good

Plant Height

Medium Tall

Test Weight

Very Good

Milk/Acre

Very Good

Best End Use

Grain, Silage, Grazing

AS1027RR EDF - NEW!

CHU

2325

Trait

RR

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Very Good

Plant Height

Very Tall

Test Weight

N/A

Milk/Acre

Excellent

Best End Use

Silage

A4939G2 RIB

CHU

2400

Trait

VT2PRIB

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Very Good

Plant Height

Medium Tall

Test Weight

Very Good

Milk/Acre

Very Good

Best End Use

Grain, Silage

AS1037RR EDF

CHU

2400

Trait

RR

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Tall

Test Weight

N/A

Milk/Acre

Excellent

Best End Use

Silage, Grazing

AS1047RR EDF

CHU

2450

Trait

RR

Seedling Vigour

Excellent

Root Strength

Very Good

Stalk Strength

Excellent

Plant Height

Very Tall

Test Weight

N/A

Milk/Acre

Excellent

Best End Use

Silage

A5432G2 RIB

CHU

2500

Trait

VT2PRIB

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Tall

Test Weight

Excellent

Milk/Acre

Very Good

Best End Use

Grain, Silage

PS 2262 RR

CHU

2075 (1975)

Trait

RR2

Seedling Vigour

Good

Root Strength

Good

Stalk Strength

Good

Plant Height

Medium

Test Weight

Good

Silage Yield

Good

Milk/Acre

Good

PS 2210 VT2P RIB

CHU

2100 (2000)

Trait

VT2P

Seedling Vigour

Very Good

Root Strength

Very Good

Stalk Strength

Excellent

Plant Height

Tall

Test Weight

Good

Silage Yield

Excellent

Milk/Acre

Very Good

PS 2320 RR

CHU

2200 (2100)

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Good

Stalk Strength

Very Good

Plant Height

Tall

Test Weight

Excellent

Silage Yield

Excellent

Milk/Acre

Excellent

PS 2333 RR

CHU

2275 (2175)

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Very Good

Stalk Strength

Very Good

Plant Height

Medium

Test Weight

Excellent

Silage Yield

Excellent

Milk/Acre

Excellent

PS 2420 RR

CHU

2300 (2200)

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Good

Stalk Strength

Very Good

Plant Height

Tall

Test Weight

Excellent

Silage Yield

Excellent

Milk/Acre

Very Good

PS 2444 VT2P

CHU

2350 (2250)

Trait

VT2P

Seedling Vigour

Very Good

Root Strength

Very Good

Stalk Strength

Very Good

Plant Height

Medium

Test Weight

Good

Silage Yield

Very Good

Milk/Acre

Very Good

PS 2563 GSX RIB - NEW!

CHU

2400 (2300)

Trait

SmartStax (full protection)

Seedling Vigour

Good

Root Strength

Very Good

Stalk Strength

Excellent

Plant Height

Medium

Test Weight

Good

Silage Yield

Excellent

Milk/Acre

Very Good

PS 2552 RR

CHU

2475 (2375)

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Good

Stalk Strength

Excellent

Plant Height

Medium Tall

Test Weight

Good

Silage Yield

Very Good

Milk/Acre

Very Good

PS ExSeed LF RR

CHU

2450 (2450)

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Very Good

Stalk Strength

Good

Plant Height

Tall (Like PS ExTreme RR)

Test Weight

Good

Silage Yield

White Cob

Milk/Acre

Very Good

PS ExPand LF RR - NEW!

CHU

2625 (2625)

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Very Good

Stalk Strength

Very Good

Plant Height

Tall (like PS ExLeafy RR)

Test Weight

Very Good

Silage Yield

White Cob

Milk/Acre

Very Good

DKC23-17RIB

CHU

2075 (1800-2000)

Trait

VT2P

Seedling Vigour

Very Good

Root Strength

Very Good

Stalk Strength

Excellent

Plant Height

Medium

Test Weight

Excellent

Silage Yield

Excellent

Milk/Acre

Excellent

Best End Use

Grain, Silage

DKC23-21

CHU

2075

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Very Good

Stalk Strength

Very Good

Plant Height

Medium

Test Weight

Excellent

Silage Yield

N/A

Milk/Acre

N/A

Best End Use

Grain

DKC26-40RIB

CHU

2150 (1900-2100)

Trait

VT2P

Seedling Vigour

Excellent

Root Strength

Very Good

Stalk Strength

Excellent

Plant Height

Medium Tall

Test Weight

Excellent

Silage Yield

Excellent

Milk/Acre

Excellent

Best End Use

Grain, Silage

DKC27-55RIB

CHU

2200

Trait

VT2P

Seedling Vigour

Excellent

Root Strength

Very Good

Stalk Strength

Very Good

Plant Height

Medium Tall

Test Weight

Excellent

Silage Yield

N/A

Milk/Acre

N/A

Best End Use

Grain

DKC29-88 - NEW!

CHU

2275

Trait

RR2

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Medium Tall

Test Weight

Very Good

Silage Yield

N/A

Milk/Acre

N/A

Best End Use

Grain

DKC29-89RIB

CHU

2275

Trait

VT2P

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Medium Tall

Test Weight

Very Good

Silage Yield

N/A

Milk/Acre

N/A

Best End Use

Grain

DKC30-07RIB

CHU

2350 (2100-2275)

Trait

VT2P

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Medium Tall

Test Weight

Very Good

Silage Yield

Excellent

Milk/Acre

Excellent

Best End Use

Grain, Silage

DKC33-78RIB

CHU

2400

Trait

VT2P

Seedling Vigour

Very Good

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Medium

Test Weight

Excellent

Silage Yield

N/A

Milk/Acre

N/A

Best End Use

Grain

DKC32-12RIB

CHU

2450 (2150-2350)

Trait

VT2P

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Excellent

Plant Height

Medium Tall

Test Weight

Excellent

Silage Yield

Excellent

Milk/Acre

Excellent

Best End Use

Grain, Silage

DKC35-88RIB

CHU

2550

Trait

VT2P

Seedling Vigour

Excellent

Root Strength

Excellent

Stalk Strength

Very Good

Plant Height

Medium

Test Weight

Excellent

Silage Yield

N/A

Milk/Acre

N/A

Best End Use

Grain

DKC34-57RIB

CHU

2575 (2425-2600)

Trait

VT2P

Seedling Vigour

Excellent

Root Strength

Very Good

Stalk Strength

Very Good

Plant Height

Tall

Test Weight

Very Good

Silage Yield

Excellent

Milk/Acre

Excellent

Best End Use

Grain, Silage

Plant it right!

Despite how big and impressive corn plants are, they are extremely bad field competitors. In fact, research done by Clarence Swanton, a weed scientist at the University of Guelph, has shown that, even before they emerge, corn seedlings can actually sense weed competition and will start to take evasive action that results in measurable yield loss. That’s why attention to seeding date, rate and depth, row spacing and maintaining clean, weed-free fields is critical to success.

Ideal Seeding Depth

Ideal seeding depth

Left: Corn planted too deeply takes more energy to emerge resulting in a smaller, later emerging plant.

Middle: Corn planted at the ideal depth allows room for the mesocotyl and nodal roots to grow within soil.

Right: Corn planted too shallow forces the root system above the soil surface, exposing roots to the elements.

Source: AgPhD.com, 2016.

Planting Tips

DATE:

Corn requires soil temperature of 8°C to 10°C to germinate.

RATE:

A good target for dry land corn production is 30,000 to 35,000 seeds/ acre.

DEPTH:

1.5 to 2 inches is ideal. Corn needs enough depth to establish brace roots that help keep plants stable.

SINGULATION AND SPACING:

They are not the same thing. Good singulation is when one seed at a time goes down the seed tube; spacing is simply the distance between seeds.

ROW SPACING:

20- to 22-inch row spacing provides enough “elbow room” for plants while keeping inter-row, inter-plant competition at bay.

SLOW DOWN:

Planting too fast can negativily impact seed placement.

Figuring out CHUs

All corn hybrids come with a corn heat unit (CHU) rating that is intended as a guide to variety selection – the idea being that if your area has the indicated CHUs, you can probably successfully grow the hybrid in question. Unfortunately, CHU ratings are not standardized and each seed company calculates them differently. Still, CHU ratings offer valuable information when you’re choosing hybrids as long as you keep the following things in mind.

Corn heat units

  • Corn varieties require a wide range of heat units
  • Listed CHUs are required for finishing corn
  • Corn for silage requires roughly 200 heat units less

For example:

PS 2320 RR has a CHU value of 2200

2200 - 200 = 2000 required CHUs for silage

Listed required CHU

for silage

This means that this variety would grow successfully for silage in a geography with 2000 CHU.

CHU Accumulations

Killing Frost: -1˚C

Legend

One in Four Years

One in Four Years

One in Ten Years

One in Ten Years

Source: Government of Alberta Agriculture and Rural Development, created Feb 28, 2017

CHUs accumulated after April 15, following three consecutive days with daily average temp >= 2.8°C and end with the first fall frost (-0°C).

CHUs are based on 1961-2016 historical weather data interpolated to township centers using ABClime -3.2.

Corn | Crop Stage Solutions

Disease management in corn:

It’s different in the west

The low humidity and cool nights of the Prairies help to keep corn diseases in check for the most part. But that doesn’t mean diseases can’t affect your crop. Choose corn hybrids that offer disease resistance traits, or qualities like rapid ear drydown or husk tightness, that can help protect against infection.

UFA is here to help with advice on hybrid selection, disease scouting and a full range of fungicides, should you need one.

Gibberella Ear Rot (GER)

© 2019 Bayer Corp. All rights reserved.

GIBBERELLA EAR ROT (GER)

  • Caused by Fusarium graminearum
  • Infection occurs during silking and symptoms include a red or pink mould beginning at ear tip.
  • Cool, wet weather during silking increases risk of infection.
  • GER leads to increased vomitoxin (DON) levels, which, when high enough, make the corn unsafe as livestock feed.
  • If fungicide is needed, aim to apply when there is plentiful, wet silks on the main ear.
  • Reduce F. graminearum inoculum through residue management and rotations: do not follow corn with wheat and vice versa.

GOSS’S WILT

  • A bacterial disease that rarely occurs in Canada, but is spreading from traditional corn-growing regions.
  • Wet and humid conditions affect outbreak.
  • Most corn hybrids carry resistance to Goss’s wilt.
  • Fungicides are ineffective against bacterial diseases like this; talk to your UFA CAM if you suspect a bacterial problem in your corn.
Goss's Wilt

© 2019 Bayer Corp. All rights reserved.

© 2019 Bayer Corp. All rights reserved.

NORTHERN CORN LEAF BLIGHT (NCLB)

  • Caused by the fungus Exserohilum turcicum, which can overwinter on corn residue.
  • NCLB has been detected in all corn-growing regions of Ontario and is starting to be seen in Alberta.
  • Risk factors include high humidity, heavy dew, frequent rain showers and moderate temperatures.
  • Choose hybrids with NCLB resistance traits and manage crop residues to prevent inoculant buildup.