Response of Coelorachis selloana (Hack) to management of ecological factors in the northeast region of Uruguay

  • F. Olmos
  • P. Soca
  • M. Sosa
  • M. Do Carmo
  • V. Cal
  • D. Bentancur
  • C. Genro
  • E. García

Keywords:

Coelorachis, nitrogen, water stress, forage allowance

Abstract

Results from 5 experiments with Coelorachis selloana, a native species of the northeast region of Uruguay are reported; different ecological factors were assessed in paddocks and in the glasshouse. The species was found mainly on clay soils and responded linearly to nitrogen applications up to 100 units; water stress significantly reduced total dry matter production compared with an irrigated control; intensively and frequently cut plants (cut every 2 weeks at 2cm) yielded significantly less dry matter per plant as compared with alleviated ones (cut every 8 weeks); under field conditions its presence increased significantly in conditions with high forage allowance as compared with low forage allowance during the growing season.

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References

Di Rienzo J.A., F. Casanoves, M.G Balzarini, L. Gonzalez, M. Tablada & C.W. Robledo. 2011. InfoStat versión 2011. Grupo InfoStat, FCA, Universidad Nacional de Córdoba, Argentina. http://www.infostat.com.ar.

MVSP. 2007. Multi Variate Statistical Package – Kovach Computing Services. Version 3.13p. www.kovcomp.com

Olmos F. 1990. Caracterización de comunidades naturales en la región noreste. En: II Seminario Nacional de Campo Natural. Editorial Hemisferio Sur. pp. 3-9.

Olmos F. & M. Godron. 1990. Relevamiento fito-ecológico en el noreste uruguayo. In: II Seminario Nacional de Campo Natural. Editorial Hemisferio Sur. pp.: 35-48.

Rosengurtt B. 1943. Estudios sobre pradera naturales del Uruguay. 3ra. Contribución: la estructura y el pastoreo de las praderas en la región de Palleros (Barreiro & Ramos S.A.). Montevideo. pp. 281.

Rosengurtt B. 1980. Germoplasma de Forrajeras Nativas. Facultad de Agronomía. Montevideo, Uruguay. pp.15.

Soca P., F. Olmos, A. Espasandin, D. Bentancur, F. Pereyra, V. Cal, M. Sosa & M. Do Carmo. 2008. Herramientas para mejorar la utilización del forraje del campo natural, el ingreso económico de la cría y atenuar los efectos de la variabilidad climática en sistemas de cría vacuna del Uruguay. En: Seminario de Actualización Técnica: Cría Vacuna. Ser. Tec. No. 174. 33: 110-119.

Published

2020-03-21

How to Cite

Olmos, F., Soca, P., Sosa, M., Carmo, M. D., Cal, V., Bentancur, D., … García, E. (2020). Response of Coelorachis selloana (Hack) to management of ecological factors in the northeast region of Uruguay. Semiárida, 22, 123–128. Retrieved from https://ojs.unlpam.edu.ar/index.php/semiarida/article/view/4469