PAC 220IT –
Seed of the South
PAC 220IT –
Seed of the South
New from Pacific Seeds, PAC 220IT is your first choice for silage in the South. It delivers quick maturity, strong early vigour, excellent emergence, and a soft, starchy grain. With built-in Imidazolinone Tolerance (IT), it offers flexible in-crop weed control to help keep your crop clean throughout the season.
PAC 220IT corn thrives in diverse environments, offering high yield potential, strong disease resistance, and excellent feed quality.
Yield adaptability
- Performs consistently in a range of environments, maintaining top-end grain and silage yields under varying seasonal pressures.
Disease tolerance
- Equipped with strong resistance to stalk and cob rots, and reliable protection against Northern Leaf Blight.
Plant vigour
- Establishes fast with strong emergence and early-season growth, setting a solid foundation for the crop.
Feed quality
- Delivers soft, starchy grain and high-quality silage that support energy-rich livestock nutrition.
Yield adaptability
- Performs consistently in a range of environments, maintaining top-end grain and silage yields under varying seasonal pressures.
Disease tolerance
- Equipped with strong resistance to stalk and cob rots, and reliable protection against Northern Leaf Blight.
Plant vigour
- Establishes fast with strong emergence and early-season growth, setting a solid foundation for the crop.
Feed quality
- Delivers soft, starchy grain and high-quality silage that support energy-rich livestock nutrition.
Hear from the team behind PAC 220IT as they share why this hybrid stands up to pressure and delivers when it counts.
Hear from the team behind PAC 220IT as they share why this hybrid stands up to pressure and delivers when it counts.
PAC 220IT Stability Plot
Formula: y = 0.37 + x , R^2 = 0.938
Note: The information provided in this graph is a summary.
For the full trial data, please reach out directly to our Pacific Seeds team to read the full trial data.
PAC 220IT
Grain Yield x Plant Population under Irrigated Environments
5 Locations across VIC, NSW & QLD in 2024
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Attributes
Yield adaptability
Blackleg Rating (UCI)
Blackleg rating (bare)
Blackleg groups
Oil Potential
Herbicide tolerance
Maturity
# Plant vigour
# Plant height
Growing zones
Rating
1.0 - 4.5 t/ha
R
R
ADFH
High - very high
XXL + CL
Early - mid
8.5 - 9.0
Med - Tall
LRZ - HRZ
Attributes & Ratings
| Attributes | Rating |
|---|---|
| Yield adaptability | 1.0 – 4.5 t/ha |
| Blackleg rating (UCI) | R |
| Blackleg rating (bare) | R |
| Blackleg groups | ADFH |
| Oil potential | High – very high |
| Herbicide tolerance | XX + CL |
| Maturity | Early – mid |
| # Plant vigour | 8.5 – 9.0 |
| # Plant height | Medium – tall |
| Growing zones | LRZ – HRZ |
| Product | Maturity | Grain Yield for Maturity (1 Poor – 9 Excellent) | Silage Yield for Maturity (1 Poor – 9 Excellent) | Grain Type (Dent – Flint) | Silage Quality (1 Low – 9 High) | Plant Height (1 Short - 9 Tall) | Husk Cover (1 Open – 9 Closed) | Dryland Suitability (1 Not – 9 Highly Recommended) | Northern Leaf Blight (1 Susceptible – 9 Resistant) | Stalk Rots (1 Susceptible – 9 Resistant) | Cob Rots (1 Susceptible – 9 Resistant) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PAC 220IT | 98 | 9 | 9 | 4 | 8 | 9 | 8 | 7 | 5 | 8 | 7 |
Important note: this is a guide only, to make a fully informed choice, please refer to our Advanta Seeds Pty Ltd specific conditions
Technote and Tools
Get all the technical detail you need – from planting and population advice to disease resistance and yield performance.
Technote and Tools
Get all the technical detail you need – from planting and population advice to disease resistance and yield performance.
FAQs for
What does CRM mean, and what's the CRM of this hybrid?
Comparative Relative Maturity (CRM) is a standardised measure used to compare how long it takes different corn hybrids to reach physiological maturity – specifically, when the grain reaches black layer.
PAC 220IT has a CRM rating of 98 days*, which places it in the quick maturity category. This means it reaches maturity faster than mid or long season hybrids, making it a strong choice for shorter growing windows or where early harvest is preferred.
*Although CRM is expressed in “days”, it’s not a literal count of calendar days. Instead, it reflects a relative measure based on accumulated heat units (growing degree days or GDDs) under standardised conditions. So, a 98 CRM hybrid like PAC 220IT typically matures earlier than hybrids with higher CRM values, but the actual number of days to maturity can vary by environment.
What levels of stay green are in this hybrid?
PAC 220IT exhibits a moderate to high level of stay-green, meaning it maintains green leaf area for longer during grain fill. This helps support yield potential under moisture stress, improves harvest flexibility, and can contribute to better grain quality in tough conditions.
What is the dry down like on this hybrid?
While dry-down can vary depending on seasonal conditions, PAC 220IT is known for its quick grain dry-down. This allows for earlier harvest opportunities and reduces the need for grain drying, helping to manage harvest timing and minimise costs.
What population should I plant this hybrid at?
A general recommendation is to plant between 90,000 and 100,000 seeds/ha. However, the ideal population can vary depending on your paddock conditions, management goals, and seasonal outlook. For best results, speak with your agronomist or Pacific Seeds technical staff to tailor a population that suits your farm.
Can I use 'IMI' herbicides on this hybrid?
Yes – PAC 220IT is part of the ‘IT’ (Imidazolinone Tolerant) hybrid range from Pacific Seeds, meaning it is tolerant to registered ‘IMI’ herbicides.
This also means you can safely plant PAC 220IT into paddocks with residual levels of IMI herbicides, provided those products were used in line with label directions.
Always ensure you’re using registered IMI herbicides for use with IT corn and follow all label and stewardship guidelines to avoid crop injury or resistance issues.
What end uses are applicable for this hybrid?
PAC 220IT is a versatile hybrid suitable for both silage and feed grain production. It offers strong whole plant digestibility and starch content for silage, while also delivering reliable grain yield and quality for livestock feed markets.
What's the best areas to grow this hybrid?
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