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.
Recommended
standards for reporting |
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| 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 |
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| 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 |