North Central Crop Evaluation Committee

Proposed Reporting Standards

The following tables summarize the general consensus of performance testing programs in the north central states for reporting test results. These are intended as guidelines to help standardize crop performance test information across the region.

Grains | Forages

Recommended standards for reporting
 agronomic characters for crop tests - Grains

Character

Corn

Soybean

Wheat

Yield:

bu/a at 15.5% moisture
(56 lb/bu) xxx
(xxx.x for regional averages)

bu/a at 13% moisture
(60 lb/bu) xxx
(xxx.x for regional averages)

bu/a at 13% moistu
(60 lb/bu) xxx
(xxx.x for regional averages)

Test weight:

lb/bu at harvest moisture xx.x

lb/bu at harvest moisture xx.x

lb/bu at harvest moisture xx.x

Moisture:

% moisture at harvest xx.x

NA

% moisture at harvest xx.x

Maturity:

silk date:  date when half of ears have fully emerged silks

rated on numerical maturity scale relative to check varieties x.x

heading date:  date when 50% of heads have extended from flag leaf collar

Stand:

plant/acre or % emergence xxx

NA

NA

Lodging:

%; includes stalks broken below the ear, stalks leaning >45 degrees, and dropped ears xx.x

1-5 scale:
1 = all erect
3 = ~45% lodged
5 = all lodged
xx.x

visual estimate of % of stems leaning more than 45 degrees from vertical

Plant height:

Not usually reported; if it is, inches to tip of tassel
xxx

inches from soil surface to top of canopy at harvest
xxx

inches from soil to top of head excluding awns; measured sometime between heading and harvest
xxx

Shattering:

NA

1-5 scale:
1= none
2 = 1-10%
3 = 10-20%
4 = 25-50%
5 = >50%
xx.x

%; visual estimate of % of seed that has fallen out of the heads
xx

Winter
survival:

NA

NA

%; visual estimate of % of plants that survived the winter, may incorporate vigor as well as survival
xx

Protein:

% at 15.5% moisture xx.x

% at 13% moisture xx.x

% at 12% moisture xx.x

Oil:

Standard Test: % at 15.5% moisture - xx.x

Specialty Test: % at 15.5% and 0% moisture

% at 13% moisture
xx.x

NA

Starch:

% at 15.5% moisture xx.x

NA

NA

Seed size:

NA

seeds/lb xxxx

seeds/lb xxxx

Reporting:

Multiple locations and/or multiple years preferred rather than single-year results

Multiple locations and/or multiple years preferred rather than single-year results

Multiple locations and/or multiple years preferred rather than single-year results

 

Recommended standards for reporting
 agronomic characters for crop tests - Forages

Character

Alfalfa
 NAAIC site 
NAAIC -Procedures 

Corn silage

Forage sorghum

Yield:

ton/a dry matter or at 15% moisture    xx.x
NAAIC Yield Testing -guidelines

ton/a at 70% moisture
xx.x

ton/a at 70% moisture
xx.x

Plant
height:

inches from soil surface to top of canopy at harvest
xxx

inches from soil surface to top of canopy at harvest
xxx

inches from soil surface to top of canopy at harvest
xxx

Quality:

Protein, ADF, NDF, RFV
NAAIC Yield Testing - quality

Protein, ADF, NDF, RFV

Protein, ADF, NDF, RFV

Grain yield:

NA

bu/a at 15.5% moisture

bu/a at 12.5% moisture

 

 

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