Pasture and grassland productivity and foliar elongation of wheatgrass in Southern Patagonia
DOI:
https://doi.org/10.31285/AGRO.27.993Keywords:
aerial biomass, grassland, morphogenesis, physical-environmental variables, wheatgrassAbstract
The aim of this work was to show the relationship of the productivity of a pasture and grassland, the living and dead material, and the foliar elongation of wheatgrass with the soil moisture and the thermal sum in Southern Patagonia (Argentina). During the years 2015/16 (Year 1) and 2016/17 (Year 2), in closures excluded from grazing, the plant height, the accumulated aerial biomass (AAB) and the daily growth rate (DGR) of a mixed pasture and grassland were determined monthly from October to February. The forage harvested from the pasture was characterized in live (LM) and dead material (DM), and the live AAB was calculated. In selected wheatgrass plants, the leaf elongation rate (LER) was determined. Soil moisture (SM) was measured and the thermal sum (TS) was calculated. The AAB was analyzed using a factorial arrangement in a completely randomized design. The results were subjected to ANVA with repeated measures analysis and the means were adjusted with the Tukey-Kramer test. DGR, LM, and LER were related to SM and TS by multiple regression analysis. In both Year 1 and Year 2 and same months the AAB of the pasture exceeded the forage accumulated by the grassland. The LM and the LER varied according to the changes in the SM, and the TS explained the variations of the parameters described, which should be considered when developing future management strategies in this type of pasture.
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Andrade M, Alvarez Bento J, Utrilla V, Vargas P, Clifton G, Gallardo R. Destete y desempeño productivo de corderas en una pastura introducida en la Patagonia Austral. ICT-UNPA. 2019;11(1):67-81. Doi: 10.22305/ict-unpa.v11i1.774.
Asay KH, Jensen KB. Wheatgrasses. In: Moser LE, Buxton DR, Casler MD, editors. Cool-Season Forage Grasses. Madison: American Society of Agronomy; 1996. p. 691-724.
Berone GD, Lattanzi FA, Agnusdei M, Colabelli M. Análisis comparativo de la respuesta en elongación foliar a la temperatura en Bromus stamineus y Lolium perenne: efectos intrínsicos y de tamaño. Rev Arg Prod Anim. 2006;26(1):162-3.
Borrajo CI, Alonso SI. Morfogénesis foliar en materiales de agropiro alargado. Rev Arg Prod Anim. 2002;22(1):184-5.
Colabelli M, Agnusdei M, Mazzanti A, Labreveux M. El proceso de crecimiento y desarrollo de gramíneas forrajeras como base para el manejo de la defoliación. Boletín Técnico (INTA Balcarce). 1998;148:1-14.
Coronato A, Mazzoni E, Vásquez M, Coronato F. Patagonia: una síntesis de su geografía física [Internet]. Río Gallegos: Universidad Nacional de la Patagonia Austral, 2017 [cited 2023 Jul 05]. 217p. Available from: https://bit.ly/3rg9E84
Defossé GE, Bertiller MB, Ares JO. Above-ground phytomass dynamics in a grassland steppe of Patagonia, Argentina. J Range Manag. 1990;43:156-60.
Ferrante D. Distribución del agua en el suelo y su relación con la estructura radical y producción de biomasa de tres tipos funcionales en un pastizal de la Estepa Magallánica Seca, Santa Cruz [master’s thesis]. Buenos Aires (AR): Universidad de Buenos Aires, Facultad de Agronomía; 2003. 98p.
Ferri CM, Striztzler NP, Pagella JH. Tasa de aparición de hojas en Panicum coloratum L. cv Verde. Rev Arg Prod Anim. 2006;26(1):174-5.
Godagnone RE, Schenkel C, De La Fuente JC, Oliva G. Estudio de Suelos de la Estepa Magallánica Seca. Buenos Aires: INTA; 2019. 150p. (Informe Técnico INTA).
Golluscio RA, Deregibus VA, Paruelo JM. Sustainability and range management in the Patagonian steppes. Ecol Austral. 1998;8:265-84.
Humano G, Oliva G, Battini A, Mascó M, Kofalt R, Barría D. La vegetación del campo Experimental Potrok Aike. In: González L, Iglesias R, Cibils A, editors. Campo Experimental Potrok Aike: resultado de 15 años de labor técnica. Buenos Aires: INTA; 2005. p. 43-6.
Jobbágy E, Sala O, Paruelo JM. Patterns and controls of primary production in the Patagonian steppe: a remote sensing approach. Ecology. 2002;83:307-19.
Jones MB, Leafe EL, Stiles W. Water stress in field-grown perennial ryegrass: I. Its effect on growth, canopy photosynthesis and transpiration. Ann Appl Biol. 1980;96:87-101.
Jones MB. Water relations. In: Jones MB, Lazenby A, editors. The grass crop: the physiological basis of production. New York: Chapman and Hall; 1988. p. 205-42.
Lemaire G, Agnusdei M. Leaf tissue turnover and efficiency of herbage utilization. In: Lemaire G, Hodgson J, De Moraes A, Nabinger C, Carvalho PC De F, editors. Grassland ecophysiology and grazing ecology. Oxford: CABI Publishing; 2000. p. 268-9.
Lemaire G, Chapman D. Tissue flows in grazed plant communities. In: Hodgson J, Illius AW, editors. The ecology and management of grazing systems. Wallingford: CAB International; 1996. p. 3-36.
Munro JMM, Walters RJK. The feeding value of grass. In: Frame J, editor. Grazing. Hurley: British Grassland Society; 1985. p. 65-77. (Occasional Symposium; 19).
Oliva G, González L, Rial P, Livraghi E. El ambiente en la Patagonia Austral. In: Borrelli P, Oliva G, editors. Ganadería ovina sustentable en la Patagonia Austral. Santa Cruz: INTA; 2001. p. 19-82.
Reynolds JF, Kemp PR, Ogle K, Fernández RJ. Modifying the "pulse-reserve" paradigm for deserts of North America: precipitation pulses, soil water and plant responses. Oecologia. 2004;141:194-210.
Sala OE, Parton WJ, Joyce LA, Lauenroth WK. Primary production of the central grassland region of the United States. Ecology. 1988;69:40-5.
Saldanha S, Cechini A, Bentancur O. Variables morfogenéticas y estructurales de cinco cultivares de Lolium sp. Agrociencia Uruguay. 2013;17(2):110-20. Doi: 10.31285/AGRO.17.482.
Strauch BO, Lira FR. Especies forrajeras adaptadas a la estepa de Magallanes. In: XXXVI Congreso Sociedad Chilena de Producción Animal; 9 al 11 de Noviembre, 2011; Punta Arenas, Chile. Punta Arenas: INIA; 2011. p. 137-8.
Tanriverdi C, Degirmenci H, Gonen E, Boyaci S. A comparison of the gravimetric and TDR methods in terms of determining the soil water content of the corn plant. Sci Papers Ser A, Agron [Internet]. 2016 [cited 2023 Jul 05];59:153-8. Available from: http://agronomyjournal.usamv.ro/pdf/2016/Art26.pdf
Utrilla V, Sturzenbaum MV, Rivera E. Evaluación de la producción y calidad forrajera de Agropiros en Santa Cruz. Rev Arg Prod Anim. 2011;31(1):581.
Utrilla V, Vargas P, Andrade M. Desempeño productivo de ovinos asociado con la calidad nutricional de agropiros en la Patagonia Austral. Rev Arg Prod Anim. 2018;38(1):157.
Utrilla VR, Aguilar R, Galván J, Andrade M, Vargas P. Relación de variables morfológicas de agropiros con la humedad edáfica y la suma térmica en la Patagonia Austral. Rev Arg Prod Anim. 2017;37(1):165.
Utrilla VR, Alsina ML, Andrade M, Vargas P. Relación de caracteres morfológicos de agropiros con la temperatura del aire y la humedad edáfica en la Patagonia Austral. Rev Arg Prod Anim. 2016;36(1):405.
Utrilla VR, Andrade M, Vargas P, Alsina ML. Efecto de variables edáficas y ambientales sobre la morfogénesis, producción de forraje y calidad nutricional de una pastura introducida y el pastizal natural en el Sur de Santa Cruz. In: IV Encuentro de investigadores, becarios y tesistas de la Patagonia Austral [Internet]. Santa Cruz: UNPA; 2016 [cited 2023 Jul 05]. p. 49-53. Available from: https://secyt.unpa.edu.ar/eipa4/docs/LibroresumenesIVEIPA.pdf
Utrilla VR, Chazarreta J. Relación de variables estructurales según el estado fenológico de una pastura de pasto ovillo con la humedad edáfica y la temperatura ambiental en la Patagonia Austral. Rev Arg Prod Anim. 2020;40(1):167.
Vargas P, Andrade M. Informe del chequeo de pastizales del Campo Experimental Potrok Aike Año 2015 y análisis Comparativo del Período 2010-2015. Santa Cruz: INTA; 2015. 14p.
White LM. Stand age, precipitation, and temperature effects on forage yield. J Range Manag. 1985;38(1):39-43.
Wills BJ, Douglas GB, McKenzie J, Trainor KD, Foote AG. Thinopyrum intermedium (Host) Barkw. & Dewey: a review, and evaluation of intermediate and pubescent wheatgrass for dryland agriculture in New Zealand. Proc N Z Grassl Assoc. 1998;60:233-41.
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