Kochia prostrata germplasm collection expedition to Kazakhstanстатья

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[1] Kochia prostrata germplasm collection expedition to kazakhstan / B. L. Waldron, R. D. Harrison, N. I. Dzyubenko et al. // SHRUBLAND ECOSYSTEM GENETICS AND BIODIVERSITY: PROCEEDINGS: 11th Wildland Shrub Symposium. — Vol. 21 of USDA FOREST SERVICE ROCKY MOUNTAIN RESEARCH STATION PROCEEDINGS. — US DEPT AGR, FOREST SERV ROCKY MT FOREST & RANGE EXPTL STN, FT COLLINS, CO 80526 USA USA, 2000. — P. 113–117. The low stature of 'Immigrant' forage kochia (Kochia prostrata) limits its use as winter forage and habitat for livestock and wildlife. In October 1999, a germplasm collection trip was undertaken to obtain forage kochia ecotypes that have potential to improve fall and winter forage. The collection area was north of the Aral Sea in the Clay and Sand Desert Steppes of Kazakhstan. Seed samples brought back to the U.S. included 192 forage kochia ecotypes. The desert shrub ecosystems had major components of chenopods. In general, the area was classified as Brown Desert Steppe, Light Chestnut Steppe, Solonetz, or Degraded Solonetz. Most soils in the Clay Desert Steppes had a clay to clay loam subsoil and were generally saline and alkaline. Elevation ranged from 250 to 1,000 feet above sea level. Average annual precipitation was 6 to 9 inches. Average annual air and soil surface temperatures were 41 and 44 degrees Fahrenheit, respectively. On average, forage kochia made up 6 percent of the plant composition on sites in the native steppe where it was present, ranging from 1 to 20 percent. Forage kochia was more prevalent when present on disturbed areas such as abandon fields, homesteads, and roadways, where it comprised 15 to 60 percent of the plant composition. Flow cytometry analysis revealed that 2x, 4x, and 6x ploidy levels of forage kochia were collected. Конференция: 11th Wildland Shrub Symposium; Местоположение: BRIGHAM YOUNG UNIV, PROVO, UT; публ.: JUN 13-15, 2000. WOSUID: WOS:000175696900011.

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