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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
29/09/2014 |
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Actualizado : |
29/09/2014 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DEAHL, K.L.; PAGANI, M.C.; VILARO, F.; PÉREZ, F.M.; MORAVEC, B.; COOKE, L.R. |
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Afiliación : |
MARIA CRISTINA PAGANI; FRANCISCO LUIS VILARO PAREJA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Characteristics of Phytophthora infestans isolates from Uruguay. |
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Fecha de publicación : |
2003 |
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Fuente / Imprenta : |
European Journal of Plant Pathology, 2003, v.109, no.3, p.277?281. |
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ISSN : |
0929-1873 |
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DOI : |
http://dx.doi.org/10.1023/A:1022825907389 |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
Isolates of Phytophthora infestans were obtained from late blighted plants from several potato-growing regions of Uruguay in 1998 and 1999. Of these, 25 representative isolates (4 from 1998, 21 from 1999) from the mainpotato-growing areas of the country, were characterised in terms of mating type, metalaxyl resistance, allozyme genotype, mitochondrial haplotype, RG57 fingerprint (1999 isolates only) and pathotype. All isolates proved to be A2 mating type, monomorphic and homozygous at the loci coding for glucose-6-phosphate isomerase and peptidase (Gpi 100/100, Pep 100/100) and to possess mitochondrial haplotype IIa. Metalaxyl-resistant isolates constituted 92% of the total. All the 1999 isolates possessed the same RG57 fingerprint, which was that previously reported as associated with the clonal lineage BR-1 from Brazil and Bolivia, which is also A2, Gpi 100/100, Pep 100/100. Most of the isolates displayed broad-spectrum virulence and five carried virulence to 10 of the 11 R genes tested despite the absence of R genes in commercially grown potato cultivars. It was concluded that the Uruguayan P. infestans isolates resembled isolates from neighbouring South American countries, notably Brazil, and belong to the new populations of the pathogen now predominant in many countries.
© 2003 Kluwer Academic Publishers. |
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Thesagro : |
PAPA; RESISTENCIA A TIZONES; TIZONES. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 02031naa a2200241 a 4500
001 1050699
005 2014-09-29
008 2003 bl uuuu u00u1 u #d
022 $a0929-1873
024 7 $ahttp://dx.doi.org/10.1023/A:1022825907389$2DOI
100 1 $aDEAHL, K.L.
245 $aCharacteristics of Phytophthora infestans isolates from Uruguay.$h[electronic resource]
260 $c2003
520 $aABSTRACT. Isolates of Phytophthora infestans were obtained from late blighted plants from several potato-growing regions of Uruguay in 1998 and 1999. Of these, 25 representative isolates (4 from 1998, 21 from 1999) from the mainpotato-growing areas of the country, were characterised in terms of mating type, metalaxyl resistance, allozyme genotype, mitochondrial haplotype, RG57 fingerprint (1999 isolates only) and pathotype. All isolates proved to be A2 mating type, monomorphic and homozygous at the loci coding for glucose-6-phosphate isomerase and peptidase (Gpi 100/100, Pep 100/100) and to possess mitochondrial haplotype IIa. Metalaxyl-resistant isolates constituted 92% of the total. All the 1999 isolates possessed the same RG57 fingerprint, which was that previously reported as associated with the clonal lineage BR-1 from Brazil and Bolivia, which is also A2, Gpi 100/100, Pep 100/100. Most of the isolates displayed broad-spectrum virulence and five carried virulence to 10 of the 11 R genes tested despite the absence of R genes in commercially grown potato cultivars. It was concluded that the Uruguayan P. infestans isolates resembled isolates from neighbouring South American countries, notably Brazil, and belong to the new populations of the pathogen now predominant in many countries. © 2003 Kluwer Academic Publishers.
650 $aPAPA
650 $aRESISTENCIA A TIZONES
650 $aTIZONES
700 1 $aPAGANI, M.C.
700 1 $aVILARO, F.
700 1 $aPÉREZ, F.M.
700 1 $aMORAVEC, B.
700 1 $aCOOKE, L.R.
773 $tEuropean Journal of Plant Pathology, 2003$gv.109, no.3, p.277?281.
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INIA Las Brujas (LB) |
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
18/01/2022 |
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Actualizado : |
02/12/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
STIRLING, S.; DIAZ-LAGO, J.E.; REPETTO, J.; PLA, M.; ARROYO, J.; CAJARVILLE, C. |
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Afiliación : |
MARÍA SOFÍA STIRLING SANTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./ Departamento de Producción Animal y Salud de Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, Uruguay.; JUAN ENRIQUE DIAZ LAGO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Research and Development, PGG Wrightson Seeds, San José, Uruguay.; JOSE LUIS REPETTO CAPELLO, Departamento de Producción Animal y Salud de Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, Uruguay.; MARCELO PLA TEJERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ ARROYO MARTÍNEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Institute of Animal Science, University of Bonn, Bonn, Germany.; CECILIA CAJARVILLE, Departamento de Producción Animal y Salud de Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, Uruguay. |
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Título : |
Growth stage and ensiling: impact on chemical composition, conservation quality and in situ ruminal degradability of whole-crop oat. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Journal of the Science of Food and Agriculture. 2021, Volume102, Issue 7, pages 2783-2791. doi: https://doi.org/10.1002/jsfa.11619 |
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ISSN : |
0022-5142 |
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DOI : |
10.1002/jsfa.11619 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 5 March 2021; Revised 2 October 2021; Accepted article published 29 October 2021. -- Corresponding author: Cajarville, C.; Departamento de Producción Animal y Salud de Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, Uruguay; email:ccajarville@fvet.edu.uy -- Funding: This study was supported by Agencia Nacional de Investigación e Innovación (ANII) scholarship [POS_NAC_2013_1_11406] and research project funding [FMV_3_2013_1_100661]. |
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Contenido : |
Abstract:
BACKGROUND: The effects of growth stage (GS) and ensiling were assessed on whole-crop oat's (Avena sativa L. cv. Cantara) chemical composition, silage fermentation quality and in situ ruminal degradability. Oat was harvested and ensiled at six GS: boot, heading, water ripe, early milk, early dough and grain ripe (144, 151, 178, 234, 362 and 512 g kg-1 of dry matter (DM) of whole-crop forage, respectively). RESULTS: GS influenced chemical composition, silage fermentation quality and ruminal degradability of whole-crop oat. Lower DM and higher water-soluble carbohydrates (WSC) contents lead to adequate forage compaction and fermentation at early GS; however, effluent was produced until the dough stage (L and Q; P ? 0.003). Advancing in maturity increased (P < 0.001) crop yield (4.5 to 9.4 t DM ha-1), DM (144 to 512 g kg-1), neutral detergent fibre (NDF; 537 to 571 g kg-1 DM), lignin (44.6 to 71.3 g kg-1 DM) and starch contents (26.4 to 201 g kg-1 DM), and reduced (P < 0.001) crude protein (107 to 60 g kg-1 DM) and WSC (115 to 17.5 g kg-1 DM). DM and NDF ruminal degradability declined with maturity for fresh and ensiled forages (L and Q; P < 0.05). Density and buffering capacity decreased with GS (L and Q; P < 0.001), whereas pH and soluble protein increased (L and Q; P ? 0.004). CONCLUSION: The growth stage of oat influenced the nutritive value and ruminal degradation to a greater extent than ensiling, and thus it can play a paramount role in whole-crop oat silage quality. © 2021 Society of Chemical Industry. © 2021 Society of Chemical Industry. MenosAbstract:
BACKGROUND: The effects of growth stage (GS) and ensiling were assessed on whole-crop oat's (Avena sativa L. cv. Cantara) chemical composition, silage fermentation quality and in situ ruminal degradability. Oat was harvested and ensiled at six GS: boot, heading, water ripe, early milk, early dough and grain ripe (144, 151, 178, 234, 362 and 512 g kg-1 of dry matter (DM) of whole-crop forage, respectively). RESULTS: GS influenced chemical composition, silage fermentation quality and ruminal degradability of whole-crop oat. Lower DM and higher water-soluble carbohydrates (WSC) contents lead to adequate forage compaction and fermentation at early GS; however, effluent was produced until the dough stage (L and Q; P ? 0.003). Advancing in maturity increased (P < 0.001) crop yield (4.5 to 9.4 t DM ha-1), DM (144 to 512 g kg-1), neutral detergent fibre (NDF; 537 to 571 g kg-1 DM), lignin (44.6 to 71.3 g kg-1 DM) and starch contents (26.4 to 201 g kg-1 DM), and reduced (P < 0.001) crude protein (107 to 60 g kg-1 DM) and WSC (115 to 17.5 g kg-1 DM). DM and NDF ruminal degradability declined with maturity for fresh and ensiled forages (L and Q; P < 0.05). Density and buffering capacity decreased with GS (L and Q; P < 0.001), whereas pH and soluble protein increased (L and Q; P ? 0.004). CONCLUSION: The growth stage of oat influenced the nutritive value and ruminal degradation to a greater extent than ensiling, and thus it can play a paramount role in whole-crop oat silage qu... Presentar Todo |
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Palabras claves : |
AVENA INTEGRAL; DEGRADACION RUMINAL; FERMANTACION DE ENSILAJE; FIBRA; Fibre; Growth stage; Ruminal degradation; Silage fermentation; Whole-crop oat. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03112naa a2200325 a 4500
001 1062641
005 2022-12-02
008 2021 bl uuuu u00u1 u #d
022 $a0022-5142
024 7 $a10.1002/jsfa.11619$2DOI
100 1 $aSTIRLING, S.
245 $aGrowth stage and ensiling$bimpact on chemical composition, conservation quality and in situ ruminal degradability of whole-crop oat.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 5 March 2021; Revised 2 October 2021; Accepted article published 29 October 2021. -- Corresponding author: Cajarville, C.; Departamento de Producción Animal y Salud de Sistemas Productivos (IPAV), Facultad de Veterinaria, Universidad de la República, San José, Uruguay; email:ccajarville@fvet.edu.uy -- Funding: This study was supported by Agencia Nacional de Investigación e Innovación (ANII) scholarship [POS_NAC_2013_1_11406] and research project funding [FMV_3_2013_1_100661].
520 $aAbstract: BACKGROUND: The effects of growth stage (GS) and ensiling were assessed on whole-crop oat's (Avena sativa L. cv. Cantara) chemical composition, silage fermentation quality and in situ ruminal degradability. Oat was harvested and ensiled at six GS: boot, heading, water ripe, early milk, early dough and grain ripe (144, 151, 178, 234, 362 and 512 g kg-1 of dry matter (DM) of whole-crop forage, respectively). RESULTS: GS influenced chemical composition, silage fermentation quality and ruminal degradability of whole-crop oat. Lower DM and higher water-soluble carbohydrates (WSC) contents lead to adequate forage compaction and fermentation at early GS; however, effluent was produced until the dough stage (L and Q; P ? 0.003). Advancing in maturity increased (P < 0.001) crop yield (4.5 to 9.4 t DM ha-1), DM (144 to 512 g kg-1), neutral detergent fibre (NDF; 537 to 571 g kg-1 DM), lignin (44.6 to 71.3 g kg-1 DM) and starch contents (26.4 to 201 g kg-1 DM), and reduced (P < 0.001) crude protein (107 to 60 g kg-1 DM) and WSC (115 to 17.5 g kg-1 DM). DM and NDF ruminal degradability declined with maturity for fresh and ensiled forages (L and Q; P < 0.05). Density and buffering capacity decreased with GS (L and Q; P < 0.001), whereas pH and soluble protein increased (L and Q; P ? 0.004). CONCLUSION: The growth stage of oat influenced the nutritive value and ruminal degradation to a greater extent than ensiling, and thus it can play a paramount role in whole-crop oat silage quality. © 2021 Society of Chemical Industry. © 2021 Society of Chemical Industry.
653 $aAVENA INTEGRAL
653 $aDEGRADACION RUMINAL
653 $aFERMANTACION DE ENSILAJE
653 $aFIBRA
653 $aFibre
653 $aGrowth stage
653 $aRuminal degradation
653 $aSilage fermentation
653 $aWhole-crop oat
700 1 $aDIAZ-LAGO, J.E.
700 1 $aREPETTO, J.
700 1 $aPLA, M.
700 1 $aARROYO, J.
700 1 $aCAJARVILLE, C.
773 $tJournal of the Science of Food and Agriculture. 2021, Volume102, Issue 7, pages 2783-2791. doi: https://doi.org/10.1002/jsfa.11619
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