Lolium perenne
Winterhawk
Winterhawk was developed in collaboration with OreGro Research and Dr. Gordon Prine of University of Florida. Selected during several cold winters in Nebraska, Winterhawk is the premier winter hardy annual ryegrass. Excellent cold and frost tolerance allows Winterhawk to thrive in those regions where annual ryegrass is normally compromised by cold weather. Winterhawk is an excellent addition to a forage program for all species of livestock where wide adaptability is needed.
Key features
- Premier winter hardy annual ryegrass
- Excellent cold and frost tolerance
- High disease resistance
- Breaks dormancy evenly in the spring
- Fast emergence
Segment
Forage
Category
Ryegrass
Species
Ryegrass, Annual
Sci. Name
Lolium perenne
Anther Color
Purplish
Auricle Pubescence
Glabrous
Auricles
Present
Basal Hairs
Absent
Botanical Name
Annual
Branch Pubescence
Glabrous
Culm Neck Shape
Straight
Emergence (Days)
7
Flag Leaf Length
Short
Flag Leaf Width
Narrow
Glume Awn Length
Shorter than Glume
Glume Length
Short
Glume Pubescence
Glabrous
Glume Width
Narrow
Growth Habit, Fall
Erect
Growth Habit, Spring
Erect
Leaf Blade Folding
Closed
Leaf Blade Margins
Smooth
Leaf Color
Medium Light Green
Leaf Length
Short
Leaf Pubescence
Glabrous
Leaf Sheath Color
Grey
Leaf Width
Very Narrow
Lemma Awn Length
Shorter than Lemma
Lemma Length
Short
Lemma Pubescence
Absent
Lemma Texture
Rough
Lemma Width
Narrow
Maturity
Early
Number of Spikelets
Few
Palea Length
Short
Palea Pubescence
Absent
Palea Width
Narrow
Panicle Attitude
Erect
Panicle Color
REDDISH
Panicle Pubescence
Glabrous
Panicle Shape
Narrow Tapering
Panicle Type
Open
Plant Height
Tall
Ploidy
Tetraploid
Pollination
Open
Rhizomes - Creeping Habit
Absent to Very Weak
Seed Size
Small
Seed Weight
0.4g/100 Seeds
Time to Flowering
VERY_EARLY
Waxy Bloom on Leaf
Present
Winter Hardiness
N/A
Approx. Seeds/Kg.
499400
Approx. Seeds/Lb.
227,000
Seeding Depth (cm)
0.635
Seeding Depth (Inches)
1/4
Seeding Rate - Alone/New (Kg./Hectare)
23-45
Seeding Rate - Alone/New (Lbs./Acre)
20-40
Planting Times
Spring, Late Summer-Early Fall
Seeding Rate - Mixes (Kg./Hectare)
11-17
Seeding Rate - Mixes (Lbs./Acre)
10-15
Livestock
Alpaca/Llama ,
Cattle ,
Goats ,
Horses ,
Sheep
Usage
Hay ,
Silage ,
Pasture ,
Cover Crop ,
Erosion Control