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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
22/09/2023 |
Actualizado : |
22/09/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
GIORELLO, D.; SBRISSIA, A. F.; SILVA, S. C. D |
Afiliación : |
DIEGO GERMAN GIORELLO LEITES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRÉ FISHER SBRISSIA, Universidade do Estado de Santa Catarina, Lages, Brazil; SILA CARNEIRO DA SILVA, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Zootecnia, Piracicaba (SP), Universidade de Sao Paulo, Sao Paulo, Brasil. |
Título : |
Bahiagrass (Paspalum notatum CV. Inia Sepé) responses to defoliation intensities. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Grass and Forage Science, 2023: 1-10. https://doi.org/10.1111/gfs.12628 |
DOI : |
10.1111/gfs.12628 |
Idioma : |
Inglés |
Notas : |
Article history: Received 9 December 2022, Revised 18 April 2023, Accepted 24 August 2023. -- Correspondence: Diego German Giorello Leites, Instituto Nacional de Investigación Agropecuaria (INIA), INIA Tacuarembó, Tacuarembó, Uruguay. Email: dgiorello@inia.org.uy -- FUNDING: Agencia Nacional de Investigación e Innovación (ANII); Instituto Nacional de Investigación Agropecuaria (INIA). |
Contenido : |
Defoliation management is determinant of forage production and plant persistence. The objective of this study was to identify grazing suitability and stability of herbage production of INIA Sepé subjected to four intensities of defoliation (represented for sward canopies of 3, 10, 17 and 24 cm maintained constant through weekly cuts) and two rates of nitrogen fertilization (100 and 300 kg ha-1). The response variables studied were: botanical/morphological composition of the herbage mass, herbage accumulation, nutritive value, tiller population density (TPD), tiller weight (TW), leaf area index (LAI) and nitrogen nutrition index (NNI) and calculations performed relative to the tiller size x density compensation mechanism (SDC). Taller swards had smaller population of large tillers, with greater individual leaf area, showing a tiller x size density compensation response. Calculations indicated that the regression coefficient for the linear regression between TW and TPD in a log scale was close to -2.5, in agreement with the -5/2 self-thinning rule, with variable LAI and R (ratio between tiller leaf area and volume). The exception was during year 1 for the 100 kg N ha-1, when the regression coefficient was close to -1.5. During year 2 only one replication of the 3 cm and 100 kg N ha-1 did not follow the SDC line. LAI and herbage accumulation were positively correlated with the distance between points of log(TW) x log(TPD) and an hypothetical -3/2 SDC line (p<.0001). Paspalum notatum cv. INIA Sepé shows stability of herbage accumulation and ability to adjust tiller size and population density. © 2023 John Wiley & Sons Ltd. MenosDefoliation management is determinant of forage production and plant persistence. The objective of this study was to identify grazing suitability and stability of herbage production of INIA Sepé subjected to four intensities of defoliation (represented for sward canopies of 3, 10, 17 and 24 cm maintained constant through weekly cuts) and two rates of nitrogen fertilization (100 and 300 kg ha-1). The response variables studied were: botanical/morphological composition of the herbage mass, herbage accumulation, nutritive value, tiller population density (TPD), tiller weight (TW), leaf area index (LAI) and nitrogen nutrition index (NNI) and calculations performed relative to the tiller size x density compensation mechanism (SDC). Taller swards had smaller population of large tillers, with greater individual leaf area, showing a tiller x size density compensation response. Calculations indicated that the regression coefficient for the linear regression between TW and TPD in a log scale was close to -2.5, in agreement with the -5/2 self-thinning rule, with variable LAI and R (ratio between tiller leaf area and volume). The exception was during year 1 for the 100 kg N ha-1, when the regression coefficient was close to -1.5. During year 2 only one replication of the 3 cm and 100 kg N ha-1 did not follow the SDC line. LAI and herbage accumulation were positively correlated with the distance between points of log(TW) x log(TPD) and an hypothetical -3/2 SDC line (p<.0001). Paspalum no... Presentar Todo |
Palabras claves : |
LAI; Paspalum notatum; Tiller density; Tiller size. |
Asunto categoría : |
K01 Ciencias forestales - Aspectos generales |
Marc : |
LEADER 02673naa a2200217 a 4500 001 1064315 005 2023-09-22 008 2023 bl uuuu u00u1 u #d 024 7 $a10.1111/gfs.12628$2DOI 100 1 $aGIORELLO, D. 245 $aBahiagrass (Paspalum notatum CV. Inia Sepé) responses to defoliation intensities.$h[electronic resource] 260 $c2023 500 $aArticle history: Received 9 December 2022, Revised 18 April 2023, Accepted 24 August 2023. -- Correspondence: Diego German Giorello Leites, Instituto Nacional de Investigación Agropecuaria (INIA), INIA Tacuarembó, Tacuarembó, Uruguay. Email: dgiorello@inia.org.uy -- FUNDING: Agencia Nacional de Investigación e Innovación (ANII); Instituto Nacional de Investigación Agropecuaria (INIA). 520 $aDefoliation management is determinant of forage production and plant persistence. The objective of this study was to identify grazing suitability and stability of herbage production of INIA Sepé subjected to four intensities of defoliation (represented for sward canopies of 3, 10, 17 and 24 cm maintained constant through weekly cuts) and two rates of nitrogen fertilization (100 and 300 kg ha-1). The response variables studied were: botanical/morphological composition of the herbage mass, herbage accumulation, nutritive value, tiller population density (TPD), tiller weight (TW), leaf area index (LAI) and nitrogen nutrition index (NNI) and calculations performed relative to the tiller size x density compensation mechanism (SDC). Taller swards had smaller population of large tillers, with greater individual leaf area, showing a tiller x size density compensation response. Calculations indicated that the regression coefficient for the linear regression between TW and TPD in a log scale was close to -2.5, in agreement with the -5/2 self-thinning rule, with variable LAI and R (ratio between tiller leaf area and volume). The exception was during year 1 for the 100 kg N ha-1, when the regression coefficient was close to -1.5. During year 2 only one replication of the 3 cm and 100 kg N ha-1 did not follow the SDC line. LAI and herbage accumulation were positively correlated with the distance between points of log(TW) x log(TPD) and an hypothetical -3/2 SDC line (p<.0001). Paspalum notatum cv. INIA Sepé shows stability of herbage accumulation and ability to adjust tiller size and population density. © 2023 John Wiley & Sons Ltd. 653 $aLAI 653 $aPaspalum notatum 653 $aTiller density 653 $aTiller size 700 1 $aSBRISSIA, A. F. 700 1 $aSILVA, S. C. D 773 $tGrass and Forage Science, 2023: 1-10. https://doi.org/10.1111/gfs.12628
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
21/12/2021 |
Actualizado : |
21/12/2021 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
CABRERA, G.; CARRIQUIRY, M.E.; RACHETTI, M.; AGUERRE, V.; ALBÍN, A.; RUGGIA, A. |
Afiliación : |
GUSTAVO CABRERA, Comisión Nacional de Fomento Rural (CNFR).; MARÍA EUGENIA CARRIQUIRY, Comisión Nacional de Fomento Rural (CNFR).; MARCELLO RACHETTI, Comisión Nacional de Fomento Rural (CNFR).; MARIA VERONICA AGUERRE ANTIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALFREDO SANTIAGO ALBÍN FERREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDREA PAOLA RUGGIA CHIESA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Ganadería Familiar Resiliente: un proyecto de co-innovación en clave de articulación. |
Complemento del título : |
Producción Familiar. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Revista INIA Uruguay, Diciembre 2021, no.67, p.72-76. |
Serie : |
(Revista INIA; 67). |
ISSN : |
1510-9011 |
Idioma : |
Español |
Contenido : |
Este artículo relata los principales elementos surgidos en los primeros 22 meses de ejecución del proyecto Ganadería Familiar Resiliente (GFR) en forma conjunta
entre la Comisión Nacional de Fomento Rural (CNFR) y el Instituto Nacional de Investigación Agropecuaria (INIA). Se trata de una nueva experiencia de coinnovación
en ganadería familiar, con la particularidad de ser liderada por una organización nacional de productores. |
Palabras claves : |
COINNOVACIÓN; GANADERIA FAMILIAR. |
Thesagro : |
GANADERIA. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16161/1/Revista-INIA-67-Dic-2021-18.pdf
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Marc : |
LEADER 01121naa a2200241 a 4500 001 1062608 005 2021-12-21 008 2021 bl uuuu u00u1 u #d 022 $a1510-9011 100 1 $aCABRERA, G. 245 $aGanadería Familiar Resiliente$bun proyecto de co-innovación en clave de articulación.$h[electronic resource] 260 $c2021 490 $a(Revista INIA; 67). 520 $aEste artículo relata los principales elementos surgidos en los primeros 22 meses de ejecución del proyecto Ganadería Familiar Resiliente (GFR) en forma conjunta entre la Comisión Nacional de Fomento Rural (CNFR) y el Instituto Nacional de Investigación Agropecuaria (INIA). Se trata de una nueva experiencia de coinnovación en ganadería familiar, con la particularidad de ser liderada por una organización nacional de productores. 650 $aGANADERIA 653 $aCOINNOVACIÓN 653 $aGANADERIA FAMILIAR 700 1 $aCARRIQUIRY, M.E. 700 1 $aRACHETTI, M. 700 1 $aAGUERRE, V. 700 1 $aALBÍN, A. 700 1 $aRUGGIA, A. 773 $tRevista INIA Uruguay, Diciembre 2021, no.67, p.72-76.
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