Corn Silage Seed Guide

Calgary, AB (T2P1M4)
Calgary, AB (T2P1M4)
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Additional Information

Information About Scoring

IMPORTANT Trait rating scores provide key information useful in selection and management of Pioneer® brand corn products in your area. Information and ratings are based on comparisons with other Pioneer brand products, not competitive hybrids. Information and scores are assigned by Pioneer Research Managers. Scores are based on period-of-years testing through 2017 harvest and were the latest available at time of printing. Some scores may change after 2018 harvest. Scores represent an average of performance data across areas of adaptation, multiple growing conditions, and a wide range of both climate and soil types, and may not predict future results. All products within a hybrid family receive the same score unless observations indicate a significant difference. Individual product responses are variable and subject to a variety of environmental, disease and pest pressures. Please use this information as only one component of your product positioning decision. Refer to or contact a Pioneer sales representative for the latest and most complete listing of traits and scores for each Pioneer brand product.
Numeric Ratings 9 = Outstanding; 1 = Poor; Blank = Insufficient Data.
Market Segment Designations indicate product is also suitable for the following market: BMR – Brown Mid Rib Corn; AQ – Optimum® AQUAmax®
Technology Segment

AM – Optimum® AcreMax® Insect Protection system with YGCB, HX1, LL, RR2. Contains a single-bag integrated refuge solution for above-ground insects. AMXT (Optimum® AcreMax® XTreme) – Contains a single-bag integrated refuge solution for above- and below-ground insects. The major

component contains the Agrisure® RW trait, the YieldGard® Corn Borer gene, and the Herculex® XTRA genes. Agrisure® technology incorporated into these seeds is commercialized under a license from Syngenta Crop Protection AG. AMX (Optimum® AcreMax® Xtra) – Contains a single-bag integrated refuge solution for above- and below-ground insects. HX1 – The Herculex® I insect protection trait offers a high level of resistance to European corn borer; very good resistance to black cutworm and moderate

resistance to corn earworm. HXX – Herculex® XTRA contains the Herculex I and Herculex RW genes for resistance to the same pests as Herculex I as well as protection against larvae of western corn rootworm and northern corn rootworm. LL – Contains the LibertyLink® gene for resistance to Liberty® herbicide. RR2 – Contains the Roundup Ready® Corn 2 trait that provides crop safety for over-the-top applications of labelled glyphosate herbicides

when applied according to label directions. YGCB – The YieldGard® Corn Borer gene offers a high level of resistance to European corn borer; and moderate resistance to corn earworm.


Herculex® insect protection technology by Dow AgroSciences and Pioneer Hi-Bred.®, ™ Herculex and the HX logo are trademarks of Dow AgroSciences LLC. LIBERTY, LibertyLink and the Water Droplet are trademarks of Bayer. Roundup Ready®, YieldGard® and the YieldGard Corn Borer design are registered trademarks used under license from Monsanto Company. Agrisure® is a registered trade- mark of and used under license from, a Syngenta Group Company. Agrisure® technology incorporated into these seeds is commercial- ized under a license from Syngenta Crop Protection AG.

More Ratings

Silage CRM (Comparative Relative Maturity) With no industry standard for silage maturity, comparing maturity and harvest moisture among corn-for- silage product is difficult. Pioneer silage CRM ratings provide a relative comparison among Pioneer product of rates at which product reach harvestable whole-plant moistures. It is on the same scale as the CRM rating provided for grain-corn product and does not represent actual days from planting or emergence to harvest moisture or half milkline.
Silage Yield for Maturity Based on tons/acre (adjusted to 30% dry matter) from multi-year comparison of products within a maturity range not exceeding 5 silage CRM units.
Starch and Sugar, % Percent starch and soluble sugars (DM basis) in the whole-plant sample predicted by NIRS.
Whole Plant Digestibility Based on whole-plant digestibility measurements (in-vitro cellulase) and nutrient profiles (starch, acid detergent fibre), as predicted by Near Infrared Reflectance Spectroscopy (NIRS).
Fibre Digestibility Enzymatic estimate of percent degradable neutral detergent fibre (NDF) as a percent of total NDF in whole-plant sample, predicted by NIRS.
Silage Crude Protein Based on the amount of crude protein in the whole plant, predicted by NIRS.
Milk or Beef per Acre 9 = Outstanding; 1 = Poor. Based on University of Wisconsin MILK2006 utilizing silage, nutrient content and digestibility.
Milk or Beef per Ton 9 = Outstanding; 1 = Poor. Based on University of Wisconsin MILK2006 utilizing silage yield, nutrient content and digestibility.
Stress Emergence All corn products are expected to establish normal stands under average soil conditions. Stress emergence is a measure of the genetic ability or potential to emerge in the stressful environmental conditions of cold, wet soils or short periods of severe low temperatures, relative to other Pioneer hybrids. Ratings of 7-9 indicate very good potential to establish normal stands under such conditions; a rating of 5-6 indicates average potential to establish normal stands under moderate stress conditions; and ratings of 1-4 indicate the hybrid has below average potential to establish normal stands under stress and should not be used if severe cold conditions are expected immediately after planting. Stress emergence is not a rating for seedling disease susceptibility, early growth or speed of emergence.
Drought Tolerance Drought tolerance is a complex trait, determined by a  platform’s ability to maintain yield in limited-moisture environments. A higher score indicates the potential for higher yields vs. other platforms of similar maturity in limited-moisture environments.
Plant Height 9 = Very Tall; 1 = Short.
Disease & Pest Precaution DISEASE PRECAUTION: Growers should balance corn product yield potential, maturity and cultural practice selection against their anticipated risk of a specific disease and need for resistance. In high disease-risk conditions, consider planting products with at least moderate resistance ratings of 4 or higher to help reduce risk. When susceptible products with disease ratings of 1 to 3 are planted in conditions of high disease pressure, the grower assumes a higher level of risk. If conditions are severe, even products rated as resistant can be adversely affected. Independent of yield reduction, diseases can predispose plants to secondary diseases such as stalk rots. This requires individual field and product monitoring for stalk stability and timely harvest when warranted.
DISEASE & PEST RATINGS: 8-9 = Highly Resistant; 6-7 = Resistant; 4-5 = Moderately resistant; 1-3 = Sysceptible; Blank = Insufficient Data.
Foliar Fungicide Response (NLB)  Probability of positive yield response to foliar fungicide applications when significant levels of Northern leaf blight (NLB) leaf disease is present. HP – High Probability; MP – Moderate Probability; LP – Low Probability. Probabilities based upon product disease scores. Because of the unlimited number of growing environments, cropping practices, and foliar fungicide active ingredients combinations possible, Pioneer makes no warranty regarding this foliar fungicide crop response information.
Gibberella Ear Rot Caution Ratings based upon visual symptoms at harvest. If Gibberella ear rot has caused significant damage in the past, growers should consider planting only products with at least moderate Gibberella ear rot ratings of 5 or higher.