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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 : |
14/10/2014 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
OTERO, A.; GOÑI, C.; JIFON, J.L.; SYVERTSEN, J.P. |
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Afiliación : |
ALVARO RICARDO OTERO CAMA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; CARMEN TERESITA GOÑI ALTUNA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
High temperature effects on citrus orange leaf gas exchange, flowering, fruit quality and yield. (Conference paper). |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Acta Horticulturae, 2011, no.903, p.1069-1074. |
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Serie : |
(Acta Horticulturae; 903). |
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ISBN : |
978-90-66052-97-0 |
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ISSN : |
0567-7572 |
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DOI : |
10.17660/ActaHortic.2011.903.149 |
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Idioma : |
Inglés |
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Notas : |
ISHS Acta Horticulturae 903: IX International Symposium on Integrating Canopy, Rootstock and Environmental Physiology in Orchard Systems. Editor: T.L. Robinson.
Publication date: 1 August 2011 |
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Contenido : |
ABSTRACT.
High midday temperatures in subtropical citrus growing regions can lead to excessively high leaf temperature (Tlf) and large leaf-to-air vapor pressure difference (D) in sun exposed leaves. This heat stress reduced net CO 2 assimilation (AC), growth, fruit yield and quality. 50% shading reduced average mid-day Tlf and increased AC, stomatal conductance (gs) and leaf water use efficiency, but decreased the internal concentration of CO 2 (Ci) in the mesophyll compared with sun-exposed trees throughout the season. However, shade had little effect on leaf transpiration. Heat stress increased non-stomatal limitations to AC in the mesophyll of sunlit leaves that were greater than stomatal limitations. Shade treatment reduced leaf carbohydrates but did not affect tree canopy volume or fruit size. Shading in the late fall until harvest increased orange yield and juice content more than compensated for the lower total soluble sugars (TSS) and resulted in net increases in TSS per tree. Shaded 'Navel' orange fruit developed better external color but lower TSS than sunexposed fruit. Shade did not affect orange fruit yields. In warm citrus producing regions, shading could improve photosynthesis and fruit quality especially in young trees where most of the leaves are exposed to direct sunlight. Improved fruit color, yield and/or TSS per hectare of high-value varieties could offset the costs of particle film sprays or shading in commercial orchards. |
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Thesagro : |
CARBONO; CITRUS; COLOR; FOTOSÍNTESIS; MARCADO DEL COLOR. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02460naa a2200277 a 4500
001 1051053
005 2019-10-15
008 2011 bl uuuu u00u1 u #d
020 $a978-90-66052-97-0
022 $a0567-7572
024 7 $a10.17660/ActaHortic.2011.903.149$2DOI
100 1 $aOTERO, A.
245 $aHigh temperature effects on citrus orange leaf gas exchange, flowering, fruit quality and yield. (Conference paper).$h[electronic resource]
260 $c2011
490 $a(Acta Horticulturae; 903).
500 $aISHS Acta Horticulturae 903: IX International Symposium on Integrating Canopy, Rootstock and Environmental Physiology in Orchard Systems. Editor: T.L. Robinson. Publication date: 1 August 2011
520 $aABSTRACT. High midday temperatures in subtropical citrus growing regions can lead to excessively high leaf temperature (Tlf) and large leaf-to-air vapor pressure difference (D) in sun exposed leaves. This heat stress reduced net CO 2 assimilation (AC), growth, fruit yield and quality. 50% shading reduced average mid-day Tlf and increased AC, stomatal conductance (gs) and leaf water use efficiency, but decreased the internal concentration of CO 2 (Ci) in the mesophyll compared with sun-exposed trees throughout the season. However, shade had little effect on leaf transpiration. Heat stress increased non-stomatal limitations to AC in the mesophyll of sunlit leaves that were greater than stomatal limitations. Shade treatment reduced leaf carbohydrates but did not affect tree canopy volume or fruit size. Shading in the late fall until harvest increased orange yield and juice content more than compensated for the lower total soluble sugars (TSS) and resulted in net increases in TSS per tree. Shaded 'Navel' orange fruit developed better external color but lower TSS than sunexposed fruit. Shade did not affect orange fruit yields. In warm citrus producing regions, shading could improve photosynthesis and fruit quality especially in young trees where most of the leaves are exposed to direct sunlight. Improved fruit color, yield and/or TSS per hectare of high-value varieties could offset the costs of particle film sprays or shading in commercial orchards.
650 $aCARBONO
650 $aCITRUS
650 $aCOLOR
650 $aFOTOSÍNTESIS
650 $aMARCADO DEL COLOR
700 1 $aGOÑI, C.
700 1 $aJIFON, J.L.
700 1 $aSYVERTSEN, J.P.
773 $tActa Horticulturae, 2011, no.903, p.1069-1074.
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INIA Las Brujas (LB) |
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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
|
|
Biblioteca (s) : |
INIA Las Brujas. |
|
Fecha actual : |
29/09/2014 |
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Actualizado : |
09/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 1 |
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Autor : |
MÁRQUEZ-MARTÍN, B.; MAESO, D.; MARTÍNEZ-AYALA, A.; BERNAL, R.; FEDERICI, M.; VINCELLI, P.; NAVAS-CASTILLO, J. |
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Afiliación : |
DIEGO CESAR MAESO TOZZI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ROBERTO FRANCISCO BERNAL PIACENTINI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MARIA TERESA FEDERICI RODRIGUEZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Diverse population of a new bipartite begomovirus infecting tomato crops in Uruguay. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Archives of Virology, 2012, v.157, no.6, p.1137-1142. |
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ISSN : |
0304-8608 |
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DOI : |
10.1007/s00705-012-1262-6 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 5 October 2011 / Accepted: 17 January 2012 / Published online: 1 March 2012.
The nucleotide sequences reported in this work are available in the GenBank database under the accession numbers JN381813 to JN381829.
Contains supplementary material. |
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Contenido : |
ABSTRACT.
Several isolates of a novel begomovirus were characterized from tomato samples collected in northern Uruguay exhibiting disease symptoms associated with Bemisia tabaci infestations. Analysis of full-length sequences of DNA-A and DNA-B components revealed the presence of a new begomovirus with the typical genome organization of a New World begomovirus, for which the name tomato rugose yellow leaf curl virus (ToRYLCV) is proposed. A high degree of nucleotide sequence diversity was found for both components, suggesting the presence of a diverse virus population. Recombination analysis suggested relationships of ToRYLCV to begomoviruses reported from the New World. Although common regions from DNA-As and DNA-Bs were surprisingly divergent for a cognate pair, a DNA-A and DNA-B pair cloned from one sample were infectious in Nicotiana benthamiana and tomato and reproduced symptoms observed in field-infected tomato plants, suggesting that ToRYLCV is the causal agent of the disease observed. This is the first report of a begomovirus infecting tomato crops in Uruguay and of the presence of begomovirus in this country.
© 2012 Springer-Verlag. |
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Thesagro : |
BIODIVERSIDAD; CULTIVO DE TOMATE; ENFERMEDADES DE LAS PLANTAS; GENETICA; GENETICA MOLECULAR. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02264naa a2200289 a 4500
001 1050703
005 2019-10-09
008 2012 bl uuuu u00u1 u #d
022 $a0304-8608
024 7 $a10.1007/s00705-012-1262-6$2DOI
100 1 $aMÁRQUEZ-MARTÍN, B.
245 $aDiverse population of a new bipartite begomovirus infecting tomato crops in Uruguay.$h[electronic resource]
260 $c2012
500 $aArticle history: Received: 5 October 2011 / Accepted: 17 January 2012 / Published online: 1 March 2012. The nucleotide sequences reported in this work are available in the GenBank database under the accession numbers JN381813 to JN381829. Contains supplementary material.
520 $aABSTRACT. Several isolates of a novel begomovirus were characterized from tomato samples collected in northern Uruguay exhibiting disease symptoms associated with Bemisia tabaci infestations. Analysis of full-length sequences of DNA-A and DNA-B components revealed the presence of a new begomovirus with the typical genome organization of a New World begomovirus, for which the name tomato rugose yellow leaf curl virus (ToRYLCV) is proposed. A high degree of nucleotide sequence diversity was found for both components, suggesting the presence of a diverse virus population. Recombination analysis suggested relationships of ToRYLCV to begomoviruses reported from the New World. Although common regions from DNA-As and DNA-Bs were surprisingly divergent for a cognate pair, a DNA-A and DNA-B pair cloned from one sample were infectious in Nicotiana benthamiana and tomato and reproduced symptoms observed in field-infected tomato plants, suggesting that ToRYLCV is the causal agent of the disease observed. This is the first report of a begomovirus infecting tomato crops in Uruguay and of the presence of begomovirus in this country. © 2012 Springer-Verlag.
650 $aBIODIVERSIDAD
650 $aCULTIVO DE TOMATE
650 $aENFERMEDADES DE LAS PLANTAS
650 $aGENETICA
650 $aGENETICA MOLECULAR
700 1 $aMAESO, D.
700 1 $aMARTÍNEZ-AYALA, A.
700 1 $aBERNAL, R.
700 1 $aFEDERICI, M.
700 1 $aVINCELLI, P.
700 1 $aNAVAS-CASTILLO, J.
773 $tArchives of Virology, 2012$gv.157, no.6, p.1137-1142.
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