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New corn varieties for 2013

The 22 new corn varieties on the market for 2013 offer improved vigor, 
higher yield, more insect control options, and more

Canadian seed companies are packing many more good features inside bags of seed corn these days.

That includes varieties that do well under lower heat unit growing conditions, have improved vigour and higher yield. But there is more. Growers are also starting to see more varieties with dual herbicide resistance — for example varieties that can be used with both Roundup Ready or Liberty Link herbicide products. But, again there is more.

For insect control you can also find varieties with VT Double Pro or VT Triple Pro technology. The Double Pro has a double-stacked trait with dual modes of action against corn earworm and above-ground protection against fall armyworm and European and southwestern corn borer.

The VT Triple Pro offers dual- mode-of-action insect protection above ground, as well as below-ground insect protection and Roundup Ready Technology. But there is more.

More companies now are also offering leading varieties with what’s generally referred to as “Refuge in a Bag” (RIB). This concept for reducing the risk of developing insecticide resistance in pests has been used in the grain industry for several years. In today’s world of hybrid, genetically modified corn varieties, corn borers are controlled by Bt technology. Bt, which stands for Bacillus thuringiensis is a gene introduced into corn varieties that produces a protein that kills lepidoptera larvae, in particular, the European corn borer.

While Bt technology is effective, plant breeders are concerned if it is used exclusively, the corn borer will develop resistance. To combat this in both the U.S. and in Canada, producers have been required to also plant what is known as a refuge corn variety along with the Bt variety. While 95 per cent of the crop can be a variety with the Bt trait, five per cent has to be a non-Bt variety. This practice insures at least a portion of the insect populations feeds on a non-Bt variety, maintaining its Bt susceptibility. Those insects can breed with any borers that might be developing resistance and help maintain the Bt susceptibility.

While farmers have had to sow the refuge crop separate from the Bt variety, the RIB concept now puts the two types of corn in the same seed bag. While companies may have their own brand name for the technology such as Refuge in a Bag, SmartStax RIB complete, or Integrated Corn Borer Refuge Option, they all provide the same blend — 95 per cent of a variety with the Bt trait and five per cent that is non-Bt.

And improved varieties also increase the production and marketing options for producers, says Tom Van Moorsel, corn specialist with Pioneer Hi-Bred in Red Deer, Alta.

While a few years ago, corn varieties in many parts of Western Canada were best suited for silage or grazing corn, Van Moorsel says more varieties are now well suited for grain production.

“There are some very good varieties out there right now,” says Van Moorsel. “We have some varieties in the 2100-heat unit range in southern Alberta this year that produced 150 to 170 bushels per acre and that is very good. A bit further north we had some 2000-heat unit varieties producing up to 115 bushels per acre and that is quite respectable too. So these new varieties are giving farmers more options.”

Another newer practice he has seen with dual purpose varieties is the production of high moisture ear corn as a high-quality dairy feed. Van Moorsel says some producers are planting a grain corn, but harvesting just the ears with a stripper header attachment on the combine. The high moisture ears are chopped and bagged, producing a very high quality feed for dairy cattle.

There are 22 new varieties being introduced to the western Canadian market for 2013. Of those varieties, eight are listed as grain corn varieties, seven are listed as silage corn varieties and five are listed as dual or multiple purpose varieties.

Pride Seeds

A4023BTRR

Crop Kind: BTRR2

End Use: Grain

Maturity: 2125 CHU

Variety Highlights: Very early flowering and finish, superior harvest intactness, excellent disease tolerance, and full dent grain with very good grain quality. Very suitable for early planting, cold soils and late harvest timing.

A4176BTRR

Crop Kind: BTRR2

End Use: Grain/Silage/Grazing

Maturity: 2150 CHU

Variety Highlights: Very high yield performance in very early zones. Very early flowering and physiological maturity, flintdent grain on a stout girthy ear with white cob. Outstanding spring emergence and spring vigour. Excellent choice for silage and grazing.

A4240RR

Crop Kind: RR2

End Use: Grain/Silage/Grazing

Maturity: 2200 CHU

Variety Highlights: Excellent choice for grain, silage and grazing. Very good early silage for yield and quality. Tall hybrid that will work very well in all soil types. Very suitable for early planting and cold soils with fast emergence and vigor.

A4914G2 RIB

Crop Kind: Genuity VT Double PRO RIB Complete

End Use: Silage

Maturity: 2200 to 2375 CHU

Variety Highlights: New Genuity VT Double PRO RIB Complete — five per cent refuge in the bag. Excellent choice for later- maturing silage. High yielding with excellent test weight. Attractive fall appearance, intactness and health. Solid agronomic package and excellent drought tolerance.

A4705HMRR

Crop Kind: RR2

End Use: Silage/Grazing

Maturity: 2175 to 2350 CHU

Variety Highlights: Unique stable genetics for the silage and high moisture corn grower with a wide harvest window. Excellent choice for grazing. Unbeatable output year after year. Outstanding emergence and spring vigour. Stout girthy flint grain ear size and white cob. Very good starch levels providing excellent quality silage.

AS1046 EDF

Crop Kind: Conventional

End Use: Silage

Maturity: 2200 to 2375 CHU

Variety Highlights: Big, very tall plant with a stout ear size, flint grain on a white cob. Huge potential in good growing conditions for the silage and high moisture grower. Effective digestible fibre hybrid with excellent silage characteristics and yield per acre. Slow drydown from 30 per cent, preserving feed quality if harvest is delayed. Outstanding emergence and visually attractive. Dark green, very upright leaf stature.

BrettYoung Seeds

Venza R

Crop Kind: RR Corn 2

End use: Feed

Maturity: 2500 CHU

Variety Highlights: A new high-yielding silage hybrid for the higher-heat unit product areas. Venza R has excellent early season development and produces a tall crop with excellent silage quality.

Sorento R

Crop Kind: Agrisure GT/CB/LL

End use: Feed

Maturity: 2300 CHU

Variety Highlights: Sorento R delivers superior yields in a package that includes corn borer protection and resistance to glyphosate and Liberty for many silage and grazing areas of Western Canada.

E44A02 R

Crop Kind: VT Double Pro Corn RIB Complete

End use: Grain

Maturity: 2150 CHU

Variety Highlights: E44A02 provides fast emergence and early maturity paired with drydown and bushel weight. It provides the best corn borer protection without the need for planting a separate refuge.

E50G29 R

Crop Kind: VT Triple Pro Corn

End use: Grain

Maturity: 2400 CHU

Variety Highlights: E50G29R combines fast emergence, early dry- down and yield for the major grain production areas with a complete pest resistant package. E50G29R requires 20 per cent refuge.

DuPont Pioneer

P8193AM

Trait Segment: YGCB, HX1/LL, RR2

End Use: Dual

Maturity: 2400 CHU

Variety Highlights: Double stack hybrid with good root and stalk strength. It has a solid agronomic package with an integrated corn borer refuge option.

P8210HR

Trait Segment: HX1/LL, RR2

End Use: Dual

Maturity: 2500 CHU

Variety Highlights: New double stack hybrid with above-average root and stalk strength. It predicts above-average tolerance for Goss’s wilt.

P8651HR

Trait Segment: HX1/LL, RR2

End Use: Dual

Maturity: 2550 CHU

Variety Highlights: This hybrid is a taller plant with above-average stalk strength. It predicts above- average tolerance for Goss’s wilt.

PICKSEED

2262RR

Crop Kind: RR2

End Use: Feed

Maturity: 2075 CHU

Variety Highlights: Early maturity; very good emergence and seedling vigour; very good stalk and root strength; medium-tall plant height.

 

ExLeafy RR

Crop Kind: RR2

End Use: Feed

Maturity: 2525 to 2675CHU

Variety Highlights: Leafy trait hybrid, very good stalk and root strength, high dry matter yield, very tall plant height.

DEKALB

DKC26 – 28RIB

Crop Kind: RIB (Refuge in the bag)

TRAITS: Genuity VT Double PRO, RIB Complete

End Use: Grain

Maturity: 2150 CHU

Variety Highlights: Excellent top-end yield potential. Excellent stay-green and plant health.

DKC27– 55RIB

Crop Kind: RIB

TRAITS: Genuity VT Double PRO, RIB Complete

End Use: Grain

Maturity: 2200 CHU

Variety Highlights: Excellent test weight with very good drydown. Excellent yield potential. Very good plant health and harvest appearance.

DKC28– 79RIB

Crop Kind: RIB

TRAITS: Genuity VT Double PRO, RIB Complete

End Use: Grain

Maturity: 2225 CHU

Variety Highlights: Very good top-end yield potential. Excellent drydown and intactness. Dual purpose grain and silage product.

DKC30 – 07RIB

Crop Kind: RIB

TRAITS: Genuity VT Double PRO, RIB Complete

End Use: Grain

Maturity: 2325 CHU

Variety Highlights: Medium tall hybrid with excellent harvest appearance. Excellent yield potential.

DKC31-07

Crop Kind: Refuge option

TRAITS: Roundup Ready Corn 2

End Use: Grain

Maturity: 2375CHU

Variety Highlights: This hybrid travels soil types well with excellent seedling vigour and late season intactness. Very good stalk and root strength, with exceptional yield. Well suited to early planting at medium high to high populations.

DKC31 – 10RIB

Crop Kind: RIB

TRAITS: Genuity VT Double PRO, RIB Complete

End Use: Grain

Maturity: 2400 CHU

Variety Highlights: This hybrid travels soil types well with excellent seedling vigour and late season intactness. Very good stalk and root strength, with exceptional yield. Well suited to early planting at medium high to high populations.

MAIZEX SEEDS

MZ1244R

Traits : Roundup Ready 2

End Use: Dual purpose — grain and silage

Maturity: 2250 CHU

Variety highlights: Well suited to corn for Western Canada. Very good yield. Has exceptional spring vigor and early flowering. †

For more information on new seed varieties and availability, contact the following companies:

Pioneer Hi-Bred

1-800-265-9435

www.pioneer.com

BrettYoung Seeds

1-800-665-5015

www.brettyoung.ca

Dekalb

1-800-667-4944

www.dekalb.ca

Pickseed

1-800-263-7425

www.pickseed.com

Pride Seeds

1-800-265-5280

www.prideseed.com

MAIZEX Seeds Inc.

1-877-682-1720

www.maizex.com

About the author

Field Editor

Lee Hart

Lee Hart is editor of Cattleman’s Corner based in Calgary.

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