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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
25/09/2016 |
Actualizado : |
25/09/2016 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
GOÑI, C.; OTERO, A.; SYVERTSEN, J.P. |
Afiliación : |
CARMEN TERESITA GOÑI ALTUNA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO RICARDO OTERO CAMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JAMES P. SYVERTSEN, Institute of Food and Agricultural Science (IFAS), Citrus Research and Education Center (CREC), University of Florida. |
Título : |
Flooding affects fruitlet abscission in Satsuma Mandarin. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Acta Horticulturae, 2015, no.1065, p. 1407-1416. [Conference Paper] |
ISBN : |
978-94-62610-53-8 |
ISSN : |
0567-7572 |
DOI : |
10.17660/ActaHortic.2015.1065.178 |
Idioma : |
Inglés |
Notas : |
Proc. XII International Citrus Congress - International Society of Citriculture. Eds. B. Sabater-Muñoz, P. Moreno, L. Peña, L. Navarro (3 vols.) |
Contenido : |
ABSTRACT.
We tested the effect of soil hypoxia from flooding on fruit drop in a mature orchard of ?Satsuma mandarin? (Citrus unshiu Marcow) trees on Pomeroy (Poncirus trifoliate (L.) Raf.) rootstock. Trees were flooded for 30 days with 10 cm water above the soil surface using a 60 cm high aluminum barrier which was buried to depth a 45 cm around the trees. Flooding began at flower anthesis and lasted until early fruit set. Flooding reduced the soil oxygen levels from 5 to 2 µg O2 cm-2 min-1. Relative fruit drop rate was higher in flooded trees than in non-flooded trees and the spring flush shoot numbers was reduced by flooding but not shoot length. Shoot water potential was reduced but leaf chlorophyll was not affected in leaves. Flooding immediately reduced net CO2 assimilation rate (ACO2), stomatal conductance and reduced quantum yield efficiency of the PSII after 3 weeks. There were only small
changes in internal CO2 concentration in leaves and no changes in maximum quantum efficiency (Fv/Fm) or basal chlorophyll florescence (Fo). This suggested that non-stomatal factors were more important than stomatal factors in limiting ACO2. Root function was reduced and an accumulation leaf starch was related to early fruit drop. Soil hypoxia from anthesis to early fruit set induced fruitlet abscission in Satsuma mandarin and was linked to tree water relations. |
Palabras claves : |
FRUIT DROP; HYPOXIA; LEAF FLUORESCENCE; LEAF PHOTOSYNTHESIS. |
Thesagro : |
CITRUS. |
Asunto categoría : |
-- |
Marc : |
LEADER 02224naa a2200253 a 4500 001 1055731 005 2016-09-25 008 2015 bl uuuu u00u1 u #d 020 $a978-94-62610-53-8 022 $a0567-7572 024 7 $a10.17660/ActaHortic.2015.1065.178$2DOI 100 1 $aGOÑI, C. 245 $aFlooding affects fruitlet abscission in Satsuma Mandarin.$h[electronic resource] 260 $c2015 500 $aProc. XII International Citrus Congress - International Society of Citriculture. Eds. B. Sabater-Muñoz, P. Moreno, L. Peña, L. Navarro (3 vols.) 520 $aABSTRACT. We tested the effect of soil hypoxia from flooding on fruit drop in a mature orchard of ?Satsuma mandarin? (Citrus unshiu Marcow) trees on Pomeroy (Poncirus trifoliate (L.) Raf.) rootstock. Trees were flooded for 30 days with 10 cm water above the soil surface using a 60 cm high aluminum barrier which was buried to depth a 45 cm around the trees. Flooding began at flower anthesis and lasted until early fruit set. Flooding reduced the soil oxygen levels from 5 to 2 µg O2 cm-2 min-1. Relative fruit drop rate was higher in flooded trees than in non-flooded trees and the spring flush shoot numbers was reduced by flooding but not shoot length. Shoot water potential was reduced but leaf chlorophyll was not affected in leaves. Flooding immediately reduced net CO2 assimilation rate (ACO2), stomatal conductance and reduced quantum yield efficiency of the PSII after 3 weeks. There were only small changes in internal CO2 concentration in leaves and no changes in maximum quantum efficiency (Fv/Fm) or basal chlorophyll florescence (Fo). This suggested that non-stomatal factors were more important than stomatal factors in limiting ACO2. Root function was reduced and an accumulation leaf starch was related to early fruit drop. Soil hypoxia from anthesis to early fruit set induced fruitlet abscission in Satsuma mandarin and was linked to tree water relations. 650 $aCITRUS 653 $aFRUIT DROP 653 $aHYPOXIA 653 $aLEAF FLUORESCENCE 653 $aLEAF PHOTOSYNTHESIS 700 1 $aOTERO, A. 700 1 $aSYVERTSEN, J.P. 773 $tActa Horticulturae, 2015, no.1065, p. 1407-1416. [Conference Paper]
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INIA Las Brujas (LB) |
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
21/02/2014 |
Actualizado : |
22/02/2014 |
Autor : |
Acosta, Y. ; Barreto, A. ; Bassewitz, H. ; Carámbula, M. ; Coll, J. ; Croci, G. ; Durán, H. ; Gimenez, A. ; Hoyos, C. ; Methol, M. ; Mieres, J. ; Montossi, F. ; Negrin, H. ; Pigurina, G. ; Rios, A. ; Romero, R. |
Título : |
Proyecto Desarrollo de Tecnologías para pequeños y medianos productores de leche : informe anual 1989 |
Fecha de publicación : |
1989 |
Fuente / Imprenta : |
[Montevideo (Uruguay)]: INIA, 1989. |
Páginas : |
78p. |
Idioma : |
Español |
Notas : |
Version Preliminar |
Thesagro : |
DATOS DE PRODUCCION; FACTORES DE PRODUCCION; PRECIOS; PRODUCCION LECHERA; RENDIMIENTO; URUGUAY. |
Asunto categoría : |
-- |
Marc : |
LEADER 00973nam a2200373 a 4500 001 1036903 005 2014-02-22 008 1989 bl uuuu u00u1 u #d 100 1 $aACOSTA, Y. 245 $aProyecto Desarrollo de Tecnologías para pequeños y medianos productores de leche$binforme anual 1989 260 $a[Montevideo (Uruguay)]: INIA$c1989 300 $a78p. 500 $aVersion Preliminar 650 $aDATOS DE PRODUCCION 650 $aFACTORES DE PRODUCCION 650 $aPRECIOS 650 $aPRODUCCION LECHERA 650 $aRENDIMIENTO 650 $aURUGUAY 700 1 $aBARRETO, A. 700 1 $aBASSEWITZ, H. 700 1 $aCARÁMBULA, M. 700 1 $aCOLL, J. 700 1 $aCROCI, G. 700 1 $aDURÁN, H. 700 1 $aGIMENEZ, A. 700 1 $aHOYOS, C. 700 1 $aMETHOL, M. 700 1 $aMIERES, J. 700 1 $aMONTOSSI, F. 700 1 $aNEGRIN, H. 700 1 $aPIGURINA, G. 700 1 $aRIOS, A. 700 1 $aROMERO, R.
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