2017 Results: PA Commercial Grain and Silage Hybrid Corn Tests Report

This report provides independent and unbiased information for the evaluation of commercial corn grain and silage hybrids available in Pennsylvania.
2017 Results: PA Commercial Grain and Silage Hybrid Corn Tests Report - Articles

Updated: November 17, 2017

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2017 Results: PA Commercial Grain and Silage Hybrid Corn Tests Report

The purpose of the Corn Hybrid Performance Tests is to evaluate various corn hybrids for grain yield and other important agronomic characteristics. Results of the test can assist farmers in selecting hybrids best suited to their operation.

The grain results is a report of 10 test locations across the state of Pennsylvania. These locations are chosen within 4 growing zones. Maturities across these zones range from 98 to 118 days relative maturity.

The silage results is a report of 11 test locations across the state of Pennsylvania. This corn hybrid evaluation for silage production is a collaborative effort by Penn State and the Professional Dairy Managers of Pennsylvania (PDMP). These locations are chosen within 4 growing zones. Maturities across these zones range from 85 to 118 days relative maturity.

New For 2017

This year, we have added Ash, Fat (Total Fatty Acids), NDFD30hr (previously 24hr), NDFD120hr, and NDFD240hr to data spreadsheets.

Starch digestibility data will be available at a later date at 4 locations. This starch digestibility test differs from the "Starch" column in the report. The Starch % will still be posted, but an additional column labeled "IVSD" (In-Vitro Starch Digestibility) will signify starch digestibility. This test is performed using wet chemistry, instead of NIR, run at a 4 hr incubation period at a 1 mm grind.

Old, but still new for 2017

Below is a "story" of uNDF240, written by Cargill nutritionist and PDMP committee member, Chris Canale.

uNDF240

Our corn hybrid evaluation reports now contain an new forage quality parameter called uNDF240. We developed a few questions below to share some of the potential of this new measurement.

What is uNDF240?

uNDF stands for undigested neutral detergent fiber (uNDF). NDF, commonly referred to as “cell wall,” is comprised of cellulose, hemicellulose, and lignin. The number “240” refers to the amount of NDF remaining undigested after 10 days (240 hours) in the rumen. The most common technique to determine uNDF is by in situ or in vitro incubation; once enough data is obtained, either technique can be used to create a calibration, or prediction, using NIR.

uNDF is a problem because it’s NDF that can’t be fermented to end products -- VFA -- that are used to make milk and milk components. And, once ingested by the cow, uNDF may take up space, creating too much rumen fill. The result: lower dry matter intake. In a sense, when forages and diets are too high in uNDF, it’s like making a cow’s engine run on 4 cylinders instead of 6.

What impacts uNDF?

uNDF is determined by environment and genetics. In other words, growing conditions play a large role in the formation of the undigested fraction (uNDF). For example, 2017 corn silage has roughly 10%-units more uNDF than 2016 silage. The cool, wet conditions during early growth stages likely contributed to higher uNDF in 2017 corn silage plants. Genetics is a factor as well. BMR hybrids tend to have significantly lower uNDF than conventional hybrids. Forage uNDF240 values are determined by genetics and environment. Tile drainage should improve (lower) uNDF240 content of forages. Flood irrigation may increase uNDF240 content.

Why is uNDF relevant?

A growing body of literature and field experience tells us that uNDF can affect cow performance. Either intake, milk yield, and/or milk components can be affected.

One key element to uNDF is the digestibility of the NDF that is available for digestion. In other words, what is the digestibility of the NDF at time points leading up to uNDF? This year, we reported digestibility of NDF at 30, 120, and 240h. These time points can be used to determine the kinetics, or rate, of NDF digestion. In the past we only reported one time point, either 24 or 30 hours. This was useful, but the comination of multiple time points provide a better estimate of the overall rate of NDF digestion. Combining rate and extent of digestion with uNDF should help us better explain cow performance.

Bottom Line:

uNDF is not a new nutrient or measure. Researchers and nutritionists have been talking about uNDF for the past 20 years. Recently, though, experiments and models are “connecting the dots” linking uNDF to yield of milk and milk components. In the end, uNDF serves as another nutrient to fine-tune rations for dairy cows and help us develop better corn hybrids for feeding them.

Seed Company Contact Information

CompanyTrials1Street AddressPhoneWeb Address
AgriGold HybridsG S5381 Akin Rd, St. Francisville, IL 62460800-262-7333www.agrigold.com
Augusta SeedsG SPO Box 899, Verona, VA 24482540-886-6055www.augustaseed.com
Channel, LLCG S800 N. Lindbergh Blvd, St Louis, MO 63167800-331-7201www.channel.com
Chemgro SeedsG SPO Box 218, East Petersburg, PA 17520800-346-4769www.chemgro.com
CPS/Dyna-Gro SeedS1140 Sweet Rd, East Aurora, NY 14052716-912-5494www.dynagroseed.com
Doebler's PA HybridsG S1000 Commerce Pk Dr #106, Williamsport, PA570-980-3906www.doeblers.com
FS InVISIONG S308 NE Front St, Milford, DE 19963607-842-6330www.fsseed.com
Hubner SeedG S10280 West SR 28, West Lebanon, IN 47991765-893-4428www.hubnerseed.com
King's Agriseeds, Inc.S60 N. Ronks Rd, Ste K, Ronks, PA 17572717-687-6224www.kingsagriseeds.com
LG SeedsG1453 Rosedale Ave, Bucyrus, OH 44820513-535-0992www.lgseeds.com
Masters ChoiceS305 W Vienna St, Anna, IL 62906618-833-6552www.seedcorn.com
Mid-Atlantic SeedsG S204 St. Charles Way, #163E, York, PA 17402717-852-8894mas-office@comcast.net
Monsanto Corp-DekalbG S800 N. Lindbergh Blvd, St Louis, MO 63167800-768-6387www.monsanto.com
MycogenG S9330 Zionsville Rd, Indianapolis, IN 46268717-327-3090www.mycogenseeds.com
Partners Brand SeedS4610 E.SR 120, Howe, IN 46746269-625-0494www.partnersbrandseed.com
Pioneer Hi-Bred Int., IncS14171 Carole Dr, Bloomington, IL 61704717-653-5605www.pioneer.com
Prairie HybridsS27445 Hurd Rd, Deergrove, IL 61243717-371-1100www.prairiehybrids.com
Seedway LLCS275 North Eighth St, Mifflinburg, PA 17844570-939-1755www.seedway.com
Syngenta SeedsG SPO Box 959, Minneapolis, MN 55440856-381-7772www.syngenta-us.com/seed
T.A. SeedsG SBox 300, Avis, PA 17721570-753-5503www.taseeds.com
Tidewater Seed, LLCS210 Marlboro Ave, #25, Easton, MD 21601410-829-9337www.tidewaterseed.com
WinField UnitedSPO Box 688, Maytown, PA 17550717-381-7914www.croplan.com

Grain and Silage Cooperator Locations

This page provides details about cooperators, planting and harvest dates, and trial locations. It should be used as a quick reference to location and cooperator details.

Grain trial cooperators and location details

CountyCityZone1NamePlanting DateHarvest Date
BradfordCanton1,2Jeff Morse5/23
CentreRock Springs1,2Penn State Ag Research6/5
ClintonLock Haven2Scott Munro4/2710/14
DauphinHershey3,4Milton Hershey School5/19
IndianaPunxsutawney1,2Lyle and Nathan Stiteler5/17
LehighBreinigsville3,4Kyle Henninger5/18
LycomingMontoursville3,4Dick Snyder4/27
TiogaLawrenceville1Mike Fritz5/22
YorkHellam3,4Richie Flinchbaugh5/18
1. Zone 1 = 1,600-1,950 degree days, Zone 2 = 1,950-2,300 degree days, Zone 3 = 2,300-2,650 degree days, Zone 4 = 2,650-3,100 degree days.
2. Not Harvested

Silage trial cooperators and location details

CountyCityGroup1NamePlanting DateHarvest Date
BlairMartinsburgG2Phil Kulp5/16NH2
BlairWilliamsburgG2Penn-England5/159/18
BradfordTroyG0,G1Gary Kline5/24NH2
BradfordCantonG0,G1Jeff Morse5/239/22
CambriaLorettoG0,G1Valewood Farms5/179/27
CentreBellefonteG2Dan Ulmer5/169/28
CentreRock SpringsG0,G1,G2Penn State Ag Research6/510/6
ChesterWest GroveG2SC,G3,G4,BMRWalt Moore5/38/28
LancasterBainbridgeG2SC,G3,G4,BMRDon Risser5/199/11,9/20
LancasterLandisvilleG3,G4, BMRPenn State SE Ag Research5/49/11
1. G0 = 93-100 day RM, G1 = 101-105 day RM, G2 = 106-110 day RM, G2SC = 106-110 day RM in South Central PA, G3 = 111-115 day RM, G4 = 116-120 day RM.
2. Not Harvested

2017 Grain Corn Hybrid Test Results

Data from 10 test locations across the state of Pennsylvania. These locations are chosen within 4 growing zones. Maturities across these zones range from 98 to 118 days relative maturity.

These reports provide individual grain yield results from Bradford, Centre, Indiana, and Tioga counties or combined grain yield results from 4 locations

Reports by Season

  • Early Season Grain Hybrids
  • Combined Data for Early Season Grain Hybrids
  • Mid Season Grain Hybrids
  • Combined Data for Mid Season Grain Hybrids
  • Late Season Grain Hybrids
  • Combined Data for Late Season Grain Hybrids

2017 Silage Corn Hybrid Reports

This corn hybrid evaluation for silage production is a collaborative effort by Penn State and the Professional Dairy Managers of Pennsylvania (PDMP). These locations are chosen within 4 growing zones. Maturities across these zones range from 85 to 118 days relative maturity.

Season and Location

Short-season Area

Mid-season Area

Mid-season Silage in Late-season Area

Late-season Area

BMR Hybrids

Starch Digestibility Trial (4 hr In-Vitro Starch Digestibility, 1 mm grind)

Authors

Grain crop management Corn management and hybrid evaluation Corn silage management Soybean management and variety evaluation Winter wheat management and variety evaluation Winter barley management and variety evaluation Interseeding cover crops in corn and soybeans

More by Gregory W. Roth, Ph.D.