Table 23-3. Seed standards in Oregon-minimum sample size: 0.23 kg (0.5 lb).

Factor 

Foundation (white tag)

Registered (purple tag)

Certified (blue tag)

Pure seed, minimum

98.00%

98.00%

98.00%

Other crops, maximum

0.10%

0.10%

0.50%

Inert matter, maximum

2.00%

2.00%

2.00%

Weed seed†, maximum

0.30%

0.30%

0.30%

Weed seed, Group A‡

none

27/lb

27/lb

Germination, minimum

85%

85%

85%

Alta, Fawn, Kentucky 31

90%

90%

90%

† None of the prohibited weeds listed in the OSCS Handbook; no St. Johnswort (Hypericum perforatum L.) is allowed in any class of seed.

‡ Group A weed seed: buckhorn plantain (Plantago major L.), docks (Rumex spp.), sheep sorrel (Rumex acetosella L.), and bedstraw (Gallium spp.).

<--Paddock (Field) Selection

Table of Contents

Tall Fescue Monograph