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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
20/11/2020 |
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Actualizado : |
05/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
KASPARY, T. E.; CUTTI, L.; BELLÉ, C.; CASAROTTO, G.; FERRAZ RAMOS, R. |
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Afiliación : |
TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUAN CUTTI, Universidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Departamento de Fitotecnia, Porto Alegre, Rio Grande do Sul, Brazil.; CRISTIANO BELLÉ, Universidade Federal de Santa Maria, Centro de Ciências Rurais, Santa Maria, Rio Grande do Sul, Brazil.; GABRIELE CASAROTTO, Universidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Departamento de Fitotecnia, Porto Alegre, Rio Grande do Sul, Brazil.; RODRIGO FERRAZ RAMOS, Universidade Federal de Santa Maria, Centro de Ciências Rurais, Santa Maria, Rio Grande do Sul, Brazil. |
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Título : |
Nondestructive analysis of photosynthetic pigments in forage radish and vetch. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Revista Ceres , vol.67 no.6, p.424-431.Nov./Dec. 2020. Epub Nov 09, 2020. OPEN ACCESS. Doi:https://doi.org/10.1590/0034-737x202067060001 |
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ISSN : |
2177-3491 |
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DOI : |
10.1590/0034-737x202067060001 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submitted on June 19th, 2019 /Accepted on August 21th, 2020. Corresponding author: tkaspary@inia.org.uy |
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Contenido : |
ABSTRACT:
Chlorophylls and carotenoids are the main photosynthetic pigments in plants, and photosynthetic potential can be used to determine the nitrogen fixation or cycling capacity of cover crops. Therefore, this study quantified and compared the content of photosynthetic pigments in Raphanus sativus and Vicia sativa by using two different methods, namely the extraction method and measurements with a portable chlorophyll meter, and determined whether the results of these two methods showed a significant correlation. Photosynthetic pigments were measured, using
both methods, in a greenhouse and laboratory, at four developmental stages: the vegetative stages I (30 days after sowing [DAS]), II (60DAS), and III (90DAS), and the reproductive stage (150DAS). The determination of the photosynthetic pigment content in R. sativus and V. sativa, obtained from the extraction method and chlorophyll index,revealed significant differences depending on the developmental stage in both species. Furthermore, the contents of chlorophyll a, chlorophyll b, and carotenoids determined using the extraction method showed high coefficients of
correlation with the total chlorophyll index determined using the portable chlorophyll meter. Therefore, the portable chlorophyll meter can be used for the accurate evaluation of the photosynthetic potential of Raphanus sativus and Vicia sativa, which also saves time and reagents. |
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Palabras claves : |
CAROTENOIDS; CHLOROPHYLL; PORTABLE CHLOROPHYLL; RAPHANUS SATIVUS L; VICIA SATIVA L. |
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Thesagro : |
ARVEJA (VICIA); RABANO. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16695/1/Revista-Ceres-vol.67.no.6-p.424-431.pdf
https://www.scielo.br/pdf/rceres/v67n6/0034-737X-rceres-67-06-424.pdf
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Marc : |
LEADER 02400nga a2200289 a 4500
001 1061511
005 2022-09-05
008 2020 bl uuuu u00u1 u #d
022 $a2177-3491
024 7 $a10.1590/0034-737x202067060001$2DOI
100 1 $aKASPARY, T. E.
245 $aNondestructive analysis of photosynthetic pigments in forage radish and vetch.
260 $c2020
500 $aArticle history: Submitted on June 19th, 2019 /Accepted on August 21th, 2020. Corresponding author: tkaspary@inia.org.uy
520 $aABSTRACT: Chlorophylls and carotenoids are the main photosynthetic pigments in plants, and photosynthetic potential can be used to determine the nitrogen fixation or cycling capacity of cover crops. Therefore, this study quantified and compared the content of photosynthetic pigments in Raphanus sativus and Vicia sativa by using two different methods, namely the extraction method and measurements with a portable chlorophyll meter, and determined whether the results of these two methods showed a significant correlation. Photosynthetic pigments were measured, using both methods, in a greenhouse and laboratory, at four developmental stages: the vegetative stages I (30 days after sowing [DAS]), II (60DAS), and III (90DAS), and the reproductive stage (150DAS). The determination of the photosynthetic pigment content in R. sativus and V. sativa, obtained from the extraction method and chlorophyll index,revealed significant differences depending on the developmental stage in both species. Furthermore, the contents of chlorophyll a, chlorophyll b, and carotenoids determined using the extraction method showed high coefficients of correlation with the total chlorophyll index determined using the portable chlorophyll meter. Therefore, the portable chlorophyll meter can be used for the accurate evaluation of the photosynthetic potential of Raphanus sativus and Vicia sativa, which also saves time and reagents.
650 $aARVEJA (VICIA)
650 $aRABANO
653 $aCAROTENOIDS
653 $aCHLOROPHYLL
653 $aPORTABLE CHLOROPHYLL
653 $aRAPHANUS SATIVUS L
653 $aVICIA SATIVA L
700 1 $aCUTTI, L.
700 1 $aBELLÉ, C.
700 1 $aCASAROTTO, G.
700 1 $aFERRAZ RAMOS, R.
773 $tRevista Ceres , vol.67 no.6, p.424-431.Nov./Dec. 2020. Epub Nov 09, 2020. OPEN ACCESS. Doi:https://doi.org/10.1590/0034-737x202067060001
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INIA La Estanzuela (LE) |
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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
12/02/2021 |
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Actualizado : |
12/02/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
-- - -- |
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Autor : |
SCHONS, R.M.T.; LACA, E.A.; SAVIAN, J.V.; MEZZALIRA, J.C.; SCHENEIDER, E.A.N.; CAETANO, M.; ZUBIETA, A.S.; BENVENUTTI, M.A.; CARVALHO, P.C. DE F. |
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Afiliación : |
R.M.T. SCHONS, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazi; E.A. LACA, University of California. Department of Plant Environmental Sciences. Davis, CA, USA.; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay / Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; J.C. MEZZALIRA, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; E.A.N. SCHENEIDER, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; M. CAETANO, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; A.S. ZUBIETA, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; M.A. BENVENUTTI, Agri-Science. Department of Agriculture and Fisheries, Queenland, Australia.; P.C. DE F. CARVALHO, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil. |
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Título : |
´Rotatinuous` stocking: An innovation in grazing management to foster both herbage and animal production. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Livestock Science, March 2021, Volume 245, Article number 104406. Doi: https://doi.org/10.1016/j.livsci.2021.104406 |
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DOI : |
10.1016/j.livsci.2021.104406 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 23 April 2019 / Received in revised form 30 November 2020 / Accepted 17 January 2021 / Available online 20 January 2021. |
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Contenido : |
?Rotatinuous? stocking is a grazing management strategy based on animal behavioural responses to sward structure which is designed to maximize herbage intake per unit of grazing time. It is an alternative to traditional grazing management practices focusing on pasture use efficiency and maximizing herbage accumulation and harvesting. To investigate this approach, Italian ryegrass (Lolium multiflorum) pastures grazed by sheep were evaluated in 2014 and 2015 under two contrasting grazing management strategies. Paddocks were distributed under a complete randomized block design with four replicates. Grazing management strategies were: traditional rotational stocking (RT), with pre- and post-grazing sward heights of 25 and 5 cm, respectively, and ?Rotatinuous? stocking (RN), with pre- and post-grazing sward heights of 18 and 11 cm, respectively. Thirty-two castrated Texel × Polwarth crossbred lambs were randomly allocated to treatments. As a consequence of grazing strategies, the stocking cycles were 12 and 4, with resting periods of 13 and 35 days, respectively, for RN and RT treatments.
Herbage production, total herbage harvested, and feed conversion efficiency were 28%, 20%, and 40%, respectively, greater for RN than for RT treatment. Although the stocking rate was lower, the average daily gain per animal and live weigh gain per hectare were 153% and 43%, respectively, greater for the RN treatment.
Despite the RN treatment being orientated to maximize herbage intake per unit of grazing time, it results in greater total herbage production and harvesting. We conclude that the ?Rotatinuous? stocking strategy is not necessarily reversed by low herbage harvesting efficiency. This innovation in grazing management conciliates high herbage and animal production at the same time. Menos?Rotatinuous? stocking is a grazing management strategy based on animal behavioural responses to sward structure which is designed to maximize herbage intake per unit of grazing time. It is an alternative to traditional grazing management practices focusing on pasture use efficiency and maximizing herbage accumulation and harvesting. To investigate this approach, Italian ryegrass (Lolium multiflorum) pastures grazed by sheep were evaluated in 2014 and 2015 under two contrasting grazing management strategies. Paddocks were distributed under a complete randomized block design with four replicates. Grazing management strategies were: traditional rotational stocking (RT), with pre- and post-grazing sward heights of 25 and 5 cm, respectively, and ?Rotatinuous? stocking (RN), with pre- and post-grazing sward heights of 18 and 11 cm, respectively. Thirty-two castrated Texel × Polwarth crossbred lambs were randomly allocated to treatments. As a consequence of grazing strategies, the stocking cycles were 12 and 4, with resting periods of 13 and 35 days, respectively, for RN and RT treatments.
Herbage production, total herbage harvested, and feed conversion efficiency were 28%, 20%, and 40%, respectively, greater for RN than for RT treatment. Although the stocking rate was lower, the average daily gain per animal and live weigh gain per hectare were 153% and 43%, respectively, greater for the RN treatment.
Despite the RN treatment being orientated to maximize herbage intake per unit o... Presentar Todo |
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Palabras claves : |
HERBAGE HARVEST; INTAKE RATE; PASTURE PRODUCTION; ROTATIONAL STOCKING; SHEEP PERFORMANCE; SWARD STRUCTURE. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02907naa a2200313 a 4500
001 1061721
005 2021-02-12
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1016/j.livsci.2021.104406$2DOI
100 1 $aSCHONS, R.M.T.
245 $a´Rotatinuous` stocking$bAn innovation in grazing management to foster both herbage and animal production.
260 $c2021
500 $aArticle history: Received 23 April 2019 / Received in revised form 30 November 2020 / Accepted 17 January 2021 / Available online 20 January 2021.
520 $a?Rotatinuous? stocking is a grazing management strategy based on animal behavioural responses to sward structure which is designed to maximize herbage intake per unit of grazing time. It is an alternative to traditional grazing management practices focusing on pasture use efficiency and maximizing herbage accumulation and harvesting. To investigate this approach, Italian ryegrass (Lolium multiflorum) pastures grazed by sheep were evaluated in 2014 and 2015 under two contrasting grazing management strategies. Paddocks were distributed under a complete randomized block design with four replicates. Grazing management strategies were: traditional rotational stocking (RT), with pre- and post-grazing sward heights of 25 and 5 cm, respectively, and ?Rotatinuous? stocking (RN), with pre- and post-grazing sward heights of 18 and 11 cm, respectively. Thirty-two castrated Texel × Polwarth crossbred lambs were randomly allocated to treatments. As a consequence of grazing strategies, the stocking cycles were 12 and 4, with resting periods of 13 and 35 days, respectively, for RN and RT treatments. Herbage production, total herbage harvested, and feed conversion efficiency were 28%, 20%, and 40%, respectively, greater for RN than for RT treatment. Although the stocking rate was lower, the average daily gain per animal and live weigh gain per hectare were 153% and 43%, respectively, greater for the RN treatment. Despite the RN treatment being orientated to maximize herbage intake per unit of grazing time, it results in greater total herbage production and harvesting. We conclude that the ?Rotatinuous? stocking strategy is not necessarily reversed by low herbage harvesting efficiency. This innovation in grazing management conciliates high herbage and animal production at the same time.
653 $aHERBAGE HARVEST
653 $aINTAKE RATE
653 $aPASTURE PRODUCTION
653 $aROTATIONAL STOCKING
653 $aSHEEP PERFORMANCE
653 $aSWARD STRUCTURE
700 1 $aLACA, E.A.
700 1 $aSAVIAN, J.V.
700 1 $aMEZZALIRA, J.C.
700 1 $aSCHENEIDER, E.A.N.
700 1 $aCAETANO, M.
700 1 $aZUBIETA, A.S.
700 1 $aBENVENUTTI, M.A.
700 1 $aCARVALHO, P.C. DE F.
773 $tLivestock Science, March 2021, Volume 245, Article number 104406. Doi: https://doi.org/10.1016/j.livsci.2021.104406
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