UPDATED, NOV. 20, 2014 – Soybeans aren’t the only crops pushing into new areas. Seed companies are releasing more early-maturing corn varieties again this year, in a bid to expand the growing region. Some of the thriftiest new varieties, in terms of corn heat units, include DuPont Pioneer’s P7332R (2050 corn heat units) and P7410HR (2100 CHU), Thunder Seed’s TH7677VTPro (2175 CHU) and DEKALB’s DKC23-22RIB (2075 CHU).
Seed companies are also offering everything from moisture stress tolerance (2123VT2P, a new variety from CROPLAN), to drought tolerance (several varieties from DuPont Pioneer along with Thunder Seed’s TH2146 RR).
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Croplan
1725RR
2350 CHU. 77 days to maturity. Taller plant for dual-purpose use. Early flowering. Fast drydown. Very good roots. Responds well to fungicide for late-season stalk health.
The following CROPLAN varieties were released last year, but we missed them in the 2013 issue.
2123VT2P
2450 CHU. 81 days to maturity. Consistent yield in short seasons. Responds best to higher populations. Excellent emergence. Very early flowering. Very open husk for good drydown. Ear is 16-20 around with flex in girth. Excellent roots and stalks. Average or below heat tolerance. Excellent cool tolerance. Good moisture stress tolerance in cooler environments.
2417VT2P
2625 CHU. 85 days to maturity. Excellent emergence. Good roots. Good late season stalks. Higher response to fungicide. Girthy ear with flex in girth. Use moderate to high populations to protect late season stalks. Best in higher yield environments. Less stress tolerance when nutrients limited. Very good silage product.
Dow AgroSciences
Hyland 4078
2275 CHU. 77 days to maturity. HxXtra/RR2/LL. Early flowering and finishing for early corn production adaptation. Strong early emergence and vigour. Dent genetics with good test weight and consistent ear development. Strong stalks and good late season intactness. Good husk cover and grain drydown.
Hyland 4093
2300 CHU. 78 days to maturity. HxXtra/RR2/LL. Very good early vigour. Delivers consistent performance across variable environments. Excellent dual purpose hybrid. Well suited to early maturity environments. Solid agronomics allow for use of aggressive plant densities in favourable environments.
DuPont Pioneer
P7332R
2050 CHU. Excellent root strength. Good drought tolerance. Excellent husk cover. Average grain drydown.
P7410HR
2100 CHU. New early corn hybrid with HX1/LL. Good stalk strength. Very good root strength. Excellent drought tolerance.
P7632HR
2200 CHU. Good drought tolerance. Above average stalks and root strength. Good husk cover.
P7632AM
2225 CHU. Optimum AcreMax product delivering integrated refuge for above-ground insect control. Good drought tolerance. Excellent root strength. Good husk cover.
P7958AM
2275 CHU. Optimum AcreMax product delivering integrated refuge for above-ground insect control. Good drought tolerance and excellent root strength. Moderate Goss’s wilt tolerance. Average grain drydown.
Thunder Seed
TH7677VTPro
2175 CHU. Very high producing grain corn. Good drydown with substantial cob.
Excellent agronomic package. Deals with variety of soil types. Distributed by Quarry Seed.
The following varieties were released late in 2014, after our publication deadline, so we’re including them this year.
TH4578RR (2200 CHU) & H7578VTPro (2250 CHU)
The RR and VTPro version of the same grain hybrid. Outstanding yield. Very good emergence. Tall plant with medium ear placement. Superior intactness and overall agronomic package. Distributed by Quarry Seed.
TH2146RR
Also available in Conventional and Certified Organic.
2300 CHU. Silage corn. Excellent emergence. Drought tolerant. Very high yielding. Excellent tons and starch producer. Distributed by Quarry Seed.
TH8781RR
2250 CHU. Silage corn. Exceptional ton production. Medium height with large cob production. Deals well across soil types. Distributed by Quarry Seed.
Dekalb
DKC23-22RIB
2075 CHU. Early flowering. Excellent stay green and standability. Strong test weight.
DKC30-19RIB
2325 CHU. Outstanding emergence and seedling growth. Excellent test weight and grain quality.
DKC31-09RIB
2400 CHU. Exceptional yield. Very good stalk and root strength. Excellent foliar disease package.
Maizex
MZ 1624DBR
2300 CHU. Genuity VT Double Pro RIB Complete. Strong seedling vigour for uniform ear development. Early flowering resulting in rapid grain setup. Exceptional stalk strength for harvest ease. Above average test weight. Also available as Roundup Ready (MZ 1625R).
LF 730CBR
2350 CHU. Genuity VT Triple Pro RIB Complete. Bred specifically for silage production. Rapid spring vigour and early season growth for uniform plant establishment. Tall robust plant increases silage yield. Also available as Roundup Ready (LF 728R).
PRIDE Seeds
A4025G3 RIB
2150 CHU. Genuity VT Triple PRO RIB Complete hybrid delivering above and below ground insect control. Very Early season grain corn. Superior late season intactness. Very suitable for early planting, cold soils & late harvest timings. Strong agronomics with very good spring vigour, stalk strength and full dent grain. Flared husk for enhanced drydown. Refuge in the bag provides enhanced trait protection and automatic refuge compliance.
A4177G3 RIB
2175 CHU. Genuity VT Triple PRO RIB Complete PRIDE G3 hybrid delivering above and below ground insect control. Early maturity multi purpose grain, silage and high moisture corn use. White cob hybrid with high starch, energy and digestibility. Consistent and reliable performance in early zones with exceptional spring vigor. Very suitable for early planting and cold soils. Refuge in the bag provides enhanced trait protection and automatic refuge compliance.
A4414RR 2150
2150 CHU. New Roundup Ready hybrid with very good emergence and spring vigour conducive for tough cold soils. Early, visually attractive High end performance as a grain or silage hybrid.
A4415G2 RIB
2200 CHU. New Genuity VT Double PRO RIB Complete product delivering above ground insect control. Early, visually attractive high end performance as a grain or silage hybrid. Excellent stalk and root strength. Very good emergence and spring vigor conducive for tough cold soils. Excellent health, drought tolerance and late season intactness. Refuge in the bag provides enhanced trait protection and automatic refuge compliance.
A4939G2 RIB
2350 CHU. Genuity VT Double PRO RIB Complete full season hybrid delivering above ground insect control. Excellent stalk and root strength. Attractive fall appearance with very good ear size and kernel quality. High yielding dual purpose for grain and silage use. Flexible harvest timing. Long lasting health and staygreen. Refuge in the bag provides enhanced trait protection and automatic refuge compliance.
AS1047RR EDF
2275 to 2450 CHU. Premium, grower and feedlot Roundup Ready® hybrid choice to provide undeniable performance for high moisture corn use and heavy tonnage silage feed. BIG, VERY TALL plant with girthy stout ear size. White cob with very good starch levels provide quality silage. Slow grain drying rate preserves reliable and consistent feed. Very good Goss’s wilt tolerance. Wider Release.
