Brome, mountain (Bromus carlnatus ) is a large-seeded species with only 

 40,000 seeds per pound. It is collected from native stands throughout 

 the intermountain region and is grown commercially in the northwestern 

 United States. In this case, the native seed is much superior as the 

 iiq)orted northwest seed produces considerably less forage and the plants 

 are less hardy. Germination and purity should both be $0 percent or 

 above and good germination should be retained for about 4- years under 

 reasonable conditions. Seed will drill better if first de-awned. 



Brome, smooth (Bromus inermis ). Most seed of this species comes from 

 middle west and central states although considerable seed is novi being 

 produced in the northwestern United States. Seed maintains a good vi- 

 ability for 5 years and although the seed appears dark and rather 

 fluffy it should have a clean, bright color and should be well-filled. 

 Purity should be at least 90 percent and germinations should be 83 per- 

 cent and in high quality seed should be above 95 percent. There are 

 approximately 135»000 seeds per pound. 



Oatgrass, tall (Arrhenatherum elatius ) seed is difficult to harvest 

 and to sow. Seed of this species will not feed thro\;gh most drills 

 unless it is first treated in fii hammer mill. Germination percentage 

 is usually above 80 percent and sometimes above 90 percent for about 

 3 years, after which it begins to drop off. Purity should exceed 80 

 percent. There are approximately 150,000 untreated seeds per pound. 

 Commercial seed is grown throughout the northern United States. 



Orchardgrass (Dactylis glomerata ). Seed of this species should have a 

 germination and purity of 90 percent or better. It rapidly loses its 

 viability, and seed older than 3 years should be tested Just before pur- 

 chase. There are approximately 520,000 seeds per pound. Most commercial 

 seed is produced in the central states although small amounts are grown 

 in the northwest. 



Timothy (Phleum pra tense ). There are more than 1^ million seeds of this 

 species per pound. A purity of 95 percent or above and a germination of 

 90 percent or above can be expected. Seed retains its viability for 6 

 years or more. Seed is produced mostly in the central or northeastern 

 states. 



Wheatgrass, bluebunch (Agropyron spicatum ). This species and the closely 

 related beardless bluebunch wheatgrass (A. inerme ) are relatively new for 

 reseeding and most of the seed is collected from mixed native stands or 

 from small increase plots in the northwestern United States, Purity and 

 germination should be above 85 percent and may exceed 90 percent. There 

 are approximately 150,000 seeds per pound. Seed should maintain a good 

 viability for 5 years. Seed of bluebunch wheatgrass should be de-awned 

 before drilling* 



yheatgrass, bluestem (Agropyron smithii ). Seed of this species, which 

 is also icnown as western wheatgrass, has a germination and purity that 



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