PAC 660 –
Live Large
PAC 660 –
Live Large
From North Queensland down to Southern New South Wales, PAC 660 is the hybrid of choice for growers chasing serious results. Whether you’re producing grain or silage, PAC 660 delivers class-leading yield, resilience, and flexibility across a wide range of environments.
PAC 660 offers excellent yield potential, a tall plant structure, and reliable disease resistance, making it a versatile hybrid for various environments.
Yield adaptability
- With a 120 CRM rating, this hybrid delivers reliable grain and silage yields from Southern NSW to North QLD, across both dryland and irrigated systems.
Disease resistance
- Offering strong protection against stalk and cob rots, along with solid Northern Leaf Blight tolerance, this hybrid delivers the disease resilience needed for consistent performance.
Plant vigour
- With a tall, upright build and strong early growth, PAC 660 stands out for its resilience, standability, and robust stature.
Silage quality
- A powerful dual-purpose performer, this hybrid offers excellent digestibility and volume that is ideal for high-output feed systems.
Yield adaptability
- With a 120 CRM rating, this hybrid delivers reliable grain and silage yields from Southern NSW to North QLD, across both dryland and irrigated systems.
Disease resistance
- Offering strong protection against stalk and cob rots, along with solid Northern Leaf Blight tolerance, this hybrid delivers the disease resilience needed for consistent performance.
Plant vigour
- With a tall, upright build and strong early growth, PAC 660 stands out for its resilience, standability, and robust stature.
Silage quality
- A powerful dual-purpose performer, this hybrid offers excellent digestibility and volume that is ideal for high-output feed systems.
Hear from the team behind PAC 660 as they share why this hybrid stands up to pressure and delivers when it counts.
Hear from the team behind PAC 660 as they share why this hybrid stands up to pressure and delivers when it counts.
PAC 660 Stability Plot
Formula: y = 0.4 + 1.1x , R2= 0.94
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 660
Yield Traits
Excellent Grain and Silage Yield for Maturity
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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 660 | 120 | 9 | 9 | 6 | 8 | 9 | 8 | 7.5 | 6.5 | 8 | 8 |
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 660 has a CRM rating of 120 days*, placing it in the medium to long maturity category. It’s well suited to regions with longer growing seasons, where maximising yield potential is a key priority.
*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 120 CRM hybrid like PAC 660 typically matures later than hybrids with lower CRM values, but the actual number of days to maturity can vary by environment.
What levels of stay green are in this hybrid?
PAC 660 has moderate stay-green, meaning it retains leaf area through grain fill under favourable conditions.
What is the dry down like on this hybrid?
PAC 660 has excellent grain dry-down, helping to reduce the need for artificial drying and allowing for a timely, efficient harvest – especially important in higher-yielding crops or where late-season weather risks exist.
What population should I plant this hybrid at?
A general recommendation is to plant between 60,000 and 70,000 seeds/ha. However, the optimal population will depend on your paddock conditions, soil type, and seasonal goals. For best results, consult your agronomist or Pacific Seeds technical staff to tailor the population to your farm.
Can I use 'IMI' herbicides on this hybrid?
No — PAC 660 is not part of the Imidazolinone Tolerant (IT) range, so IMI herbicides should not be used on this hybrid.
If you need IMI tolerance, look for hybrids with ‘IT’ at the end of their name, which are specifically bred to handle registered IMI herbicides.
What end uses are applicable for this hybrid?
PAC 660 is primarily suited for silage, making it a strong first-choice option for high-yielding forage systems. It can also be used for feed grain, offering flexibility depending on seasonal priorities and market demand.
What's the best areas to grow this hybrid?
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 660 has a CRM rating of 120 days*, placing it in the medium to long maturity category. It’s well suited to regions with longer growing seasons, where maximising yield potential is a key priority.
*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 120 CRM hybrid like PAC 660 typically matures later than hybrids with lower CRM values, but the actual number of days to maturity can vary by environment.
What levels of stay green are in this hybrid?
PAC 660 has moderate stay-green, meaning it retains leaf area through grain fill under favourable conditions.
What is the dry down like on this hybrid?
PAC 660 has excellent grain dry-down, helping to reduce the need for artificial drying and allowing for a timely, efficient harvest – especially important in higher-yielding crops or where late-season weather risks exist.
What population should I plant this hybrid at?
A general recommendation is to plant between 60,000 and 70,000 seeds/ha. However, the optimal population will depend on your paddock conditions, soil type, and seasonal goals. For best results, consult your agronomist or Pacific Seeds technical staff to tailor the population to your farm.
Can I use 'IMI' herbicides on this hybrid?
No — PAC 660 is not part of the Imidazolinone Tolerant (IT) range, so IMI herbicides should not be used on this hybrid.
If you need IMI tolerance, look for hybrids with ‘IT’ at the end of their name, which are specifically bred to handle registered IMI herbicides.
What end uses are applicable for this hybrid?
PAC 660 is primarily suited for silage, making it a strong first-choice option for high-yielding forage systems. It can also be used for feed grain, offering flexibility depending on seasonal priorities and market demand.
What's the best areas to grow this hybrid?
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