Genetic Technologies Limited
Hybrid P1837 P1837 New

P1837 Maize Silage Hybrid

Defensive full-season giant.

Very tall, with superior standability, excellent resistance to Northern Leaf Blight and Rust.

  • Excellent drought tolerance and staygreen which supports season long 'silage eye appeal'.
  • Has a similar maturity and silage yield potential to P1636.
  • This huge plant only requires established plant populations of 70,000 to 90,000 plants per hectare to optimise yeild performance.

Widely adapted, stable, full-season hybrid. Plant early in high potential paddocks in warm northern production areas.

Comparison with P1636 or P1315.

Recommended established plant
populations (000's/ha)

Challenging yield environments


Medium yield environments


High yield environments


Download Tech Note

Recommended growing regions

Hybrid Region Map

CRM 115

Estimated days 146-161

Drought Tolerance 8

Stalk Strength 6

Root Strength 6

Early Growth 7

Plant Height 9

Staygreen 9


Seed tag colour

Maize for silage hybrid performance information

Feature hybrid Comparison hybrid Number of trials Harvest drymatter difference (%)1 Yield advantage (kgDM/ha)2 Statistical significance3
P1837 PAC500 (Z71-F1) 15 -2.7 1343 star
P1837 PAC624 14 1.4 1498 CA
Bay of Plenty, Gisborne & Northern Hawke's Bay
P1837 P1636 10 -0.7 -447 NS
P1837 P1636 21 -2.3 -484 NS

Scientific Designation

star 1 star 2 star 3 = very highly significant yield advantage to Pioneer

star 1 star 2 = highly significant yield advantage to Pioneer

star 1 = significant yield advantage to Pioneer

NS = not significant

CA = commercially acceptable

1 Positive DM differences means the bolded hybrid was drier at harvest, negative DM differences mean it was wetter.

2 A positive yield advantage means the bolded hybrid produced more yield, a negative yield advantage means it produced less.

3 For information on statistical significance click here.

IMPORTANT NOTE: Hybrid comparisons are only valid within a range of + or - 4 CRM. These descriptions mainly feature product strengths. When choosing hybrids, also review carefully the trait ratings found in the table here. Contact your local Pioneer Area Manager or merchant representative for further advice.

Talk to a Pioneer representative

Brent Bishop

Brent Bishop

Regional Manager

North Waikato & Northland

027 554 3315

Shaun Ruddell

Shaun Ruddell

Area Manager

Dargaville & Far North

027 507 4881

Corey Thorn

Corey Thorn

Area Manager

Whangarei & Wellsford

027 886 0221

Gil Dallas

Gil Dallas

Area Manager

South Auckland & North Waikato

027 275 2147

Craig Maxwell

Craig Maxwell

Regional Manager

Central Waikato & Bay of Plenty

027 224 0917

Wade Bell

Wade Bell

Farm Systems Manager

Waikato & Northland

027 702 7049