Agrostis

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Related to Bentgrasses: creeping bentgrass
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Agrostis

 

a genus of perennial and, less commonly, annual grasses of the family Gramineae. The small, one-flowered spike-lets are gathered in loose panicles. There are approximately 200 species, distributed in the temperate and cold belts, mainly in the northern hemisphere in the mountains of tropical regions. The USSR has more than 30 species, growing mainly in the forest zone. The plants grow in meadows (often in large clusters), in glades, amid thickets, and along bodies of water.

The genus includes many forage grasses. The species A. stolonifera (formerly A. alba) and A. gigantea, which are found along wet meadows, are used for pasture and silage. Both species are grown in grass mixtures for lowland meadows. Other forage grasses include the dog bent (A. canina), which grows in the European USSR; the Siberian species A. clavata and A. trinii; and the Caucasian species A. planifolia. The Rhode Island bent (A. tenius; formerly A. capillaris) is often found in dry meadows but is rarely eaten by livestock. A number of species, including the dog bent and the Rhode Island bent, are grown for lawns. A. alpina, the cloud bent (A. nebulosa), and A. rupestris are ornamentals.

REFERENCES

Kormovye rasteniia senokosov i pastbishch SSSR, vol. 1. Edited by I. V. Larin. Moscow-Leningrad, 1950.

T. V. EGOROVA

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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colonial and dryland bentgrasses explained [greater than or equal to] 98% of the variance among species in both 2001 experiments (Table 2).
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In general, including the unplanted control, N[O.sub.3]-N concentration in the leachate increased 3 d after fertilizer application, peaked after 7 d ([approximately equal to] 1-15, 20-40, and 40-55 mg N[O.sub.3]-N [L.sup.-1] for the bentgrasses, annual bluegrasses, and unplanted control, respectively) and then decreased to [approximately equal to] 3 and 10 mg [L.sup.-1] for the grasses and unplanted control, respectively, until the next fertilizer application.
Velvet bentgrass plots retained higher soil moisture content than both creeping and colonial bentgrasses under all deficit irrigation regimes.
Bentgrasses used in this study represented seven groups: Milwaukee, Seed Research of Oregon (SRO), Azores, Plant Introductions (PI), Velvet, Creeping, and Colonial (Table 1).
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Our recent work in the study of genetic diversity in the Agrostis species with AFLPs has shown the advantage of this technique for biodiversity studies, distinguishing fourteen species of bentgrasses into seven major groups (Vergara and Bughrara, 2003).
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