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Defoliation frequency affects morphophysiological traits in the bunchgrass Poa ligularis = La frecuencia de defoliación afecta las carcacterísticas morfofisiológicas en la gramínea perenne Poa ligularis
Gittins Lopez, Cecilia Gabriela; Busso, Carlos Alberto; Becker, Guillermo Fernando; Ghermandi, Luciana; Siffredi, Guillermo Lorenzo (Fundacion Romulo Raggio, 2010-11)Poa ligularis is an important forage in Patagonian rangelands. Populations of this perennial bunchgrass have been severely affected by overgrazing. We propose that increased defoliation frequencies will decrease (1) aerial- ... -
Defoliation Frequency Effects on Shoots and Roots of Poa ligularis in Arid Patagonia, Argentina
Busso, Carlos Alberto; Gittins Lopez, Cecilia Gabriela; Becker, Guillermo Fernando (Sryahwa Publications, 2016)Poa ligularis is an important forage, perennial bunchgrass in Patagonian rangelands. We hypothesized that (1) root biomass in P. ligularis is not reduced by increased defoliation frequency, as carbon would be allocated ... -
Effect of volcanic ash over Orthoptera survival in Patagonia
Fernandez Arhex, Valeria Cristina; Amadio, Maria Emilia; Enriquez, Andrea Soledad; Pietrantuono, Ana Laura; Becker, Guillermo Fernando; Bruzzone, Octavio Augusto (2015-04)The aim of this work was to evaluate the ash toxicity from the Puyehue-Cordón Caulle volcanic complex on the survival of two Orthopteran species: the grasshoper Dichroplus vittigerum and the green locust Brugilis sp. Two ... -
Guía de recomendación de carga animal para Mallines : Sierras y Mesetas Orientales, provincia de Rio Negro : Pastoreo de verano (Noviembre-Abril)
Siffredi, Guillermo Lorenzo; Lopez, Carlos Rodolfo; Bran, Donaldo Eduardo; Ayesa, Javier Alejandro; Gaitan, Juan Jose; Becker, Guillermo Fernando (EEA Bariloche, INTA, 2013)La evaluación de los recursos forrajeros y la determinación de la carga animal son herramientas de gran utilidad para la planificación y toma de decisiones en el manejo sustentable de los pastizales naturales. La presente ... -
Guías de evaluación forrajera de campos para la determinación de la carga animal
Siffredi, Guillermo Lorenzo; Becker, Guillermo Fernando (EEA Bariloche, INTA, 1998)Las Guías que a continuación se presentan son una ayuda para determinar la carga animal para diferentes pastizales representativos del Área Ecológica de Sierras Y Mesetas Occidentales, entre las localidades de Pilcaniyeu ... -
Siembra de verdeos y alfalfa en la localidad de Río Chico
Ferrari, Javier Luis; Becker, Guillermo Fernando; Conterno, Cecilia; Maldonado, Maria Ines; Reuque, Raul Esteban; Villagra, Edgar Sebastian; Aparicio, Alejandro Gabriel (Ediciones INTA, 2018-12)La siembra de verdeos y alfalfa en el Valle del Río Chico resulta un complemento fundamental de la alimentación del ganado como reserva forrajera. -
The effects of volcanic ash from Puyehue-Caulle range eruption on the survival of Dichroplus vittigerum (Orthoptera: Acrididae)
Fernandez Arhex, Valeria Cristina; Buteler, Micaela; Amadio, Maria Emilia; Enriquez, Andrea Soledad; Pietrantuono, Ana Laura; Stadler, Teodoro; Becker, Guillermo Fernando; Bruzzone, Octavio Augusto (2013-03)The aim of this work was to evaluate the toxicity of volcanic ash from the volcanic complex Puyehue-Caulle Range on the grasshopper, Dichroplus vittigerum, and compare the results with the effect of diatomaceous earth, an ... -
Tiller hierarchy and defoliation frequency determine bud viability in the grass Poa ligularis
Busso, Carlos Alberto; Gittins Lopez, Cecilia Gabriela; Becker, Guillermo Fernando; Ghermandi, Luciana (Wiley, 2011-06-21)Bud viability after various defoliation frequency treatments was determined in the perennial bunchgrass Poa ligularis under arid field conditions from 2002 to 2005. Bud respiratory activity was examined on various stem ...