Seed Germination in Certain New Mexico Range Grasses

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Abstract
Amount of rainfall during the year, especially during growing season and at time of harvesting, affects vitality of seed. Bouteloua eriopoda and B. gracilis do not seed very often. Most of the florets are sterile, and because of their similarity to the fertile florets, are hard to distinguish. Aristida seed germinate just as well in the light as in the dark. The seed coat is important in Sporobolus seed, as it keeps out water and prevents germination; it must be punctured before good germination results. Soaking affects the seed coat but little; shaking even for 9 hrs in sand has little effect; but scratching or pricking hastens germination greatly. The seed of S. airoides do not need pricking; the seed coat is more permeable to water than are the seed coats of the other spp. The Sporobolus seed from 1925 retained their vitality very well.

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