Citrus fruit quality: Physiological basis and techniques of improvement.
Fruit size can be improved either by increasing carbohydrates availability to fruit or by increasing fruit sink strength. Application of synthetic auxins may act in these two ways, depending on the date of treatment. When they are applied during the physiological drop they have a thinning effect, reducing competition for carbohydrates among developing fruitlets; when applied at the onset of cell enlargement stage fruit sink strength is increased and carbohydrate accumulation in the fruit is enhanced. Physiological disorders such as creasing, splitting, piffing, peel pitting, etc. Can be reduced in intensity or minimized using gibberellic acid, synthetic auxins or a mixture of both. Fruit maturation (colouring) can be enhanced using ethephon or figaron and can be delayed using gibberellic acid. The effectiveness of some of these treatments can be significantly improved by adding mineral salts, mainly nitrogen compounds in the spray mix. In this article best treatment strategies and their mechanism of action are discussed.
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Coeditada entre Facultad de Agronomía - Udelar y el Instituto Nacional de Investigación Agropecuaria (INIA)
2002
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oai:oai.agrocienciauruguay.uy:article-10652023-06-26T17:24:31Z Citrus fruit quality: Physiological basis and techniques of improvement. La calidad de los frutos cítricos: Fundamentos fisiológicos y técnicas de mejora Agustí, M. Martínez-Fuentes, A. Mesejo, C. fruit size physiological disorders maturation plant growth regulators tamaño del fruto alteraciones fisiológicas maduración reguladores del desarrollo Fruit size can be improved either by increasing carbohydrates availability to fruit or by increasing fruit sink strength. Application of synthetic auxins may act in these two ways, depending on the date of treatment. When they are applied during the physiological drop they have a thinning effect, reducing competition for carbohydrates among developing fruitlets; when applied at the onset of cell enlargement stage fruit sink strength is increased and carbohydrate accumulation in the fruit is enhanced. Physiological disorders such as creasing, splitting, piffing, peel pitting, etc. Can be reduced in intensity or minimized using gibberellic acid, synthetic auxins or a mixture of both. Fruit maturation (colouring) can be enhanced using ethephon or figaron and can be delayed using gibberellic acid. The effectiveness of some of these treatments can be significantly improved by adding mineral salts, mainly nitrogen compounds in the spray mix. In this article best treatment strategies and their mechanism of action are discussed. El tamaño final de los frutos cítricos pueden mejorarse bien aumentando la disponibilidad de carbohidratos bien aumentando la capacidad sumidero del fruto. La aplicación de auxinas de síntesis puede actuar en ambos sentidos, dependiendo de la época en que se apliquen. Durante la caída fisiológica de frutos aumentan la intensidad de ésta, reduciendo así la competencia por carbohidratos entre los frutos en desarrollo; cuando se aplican al inicio de la fase lineal del crecimiento del fruto aumentan su capacidad sumidero y la acumulación de carbohidratos en éste aumenta. Algunos desórdenes fisiológicos, como la clareta, el rajado, el bufado, el picado, etc. puede ser reducidos en intensidad o minimizados con la utilización de ácido giberélico, auxinas de síntesis o su mezcla. La maduración del fruto (coloración) puede adelantarse utilizando ethephon o figaron y puede retratarse con el uso del ácido giberélico. La eficacia de algunos de estos tratamientos puede mejorar significativamente mediante la adición de sales minerales, sobe todo nitrogenadas. En este artículo se discuten los tratamientos más eficaces y si mecanismo de acción. Coeditada entre Facultad de Agronomía - Udelar y el Instituto Nacional de Investigación Agropecuaria (INIA) 2002-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://agrocienciauruguay.uy/index.php/agrociencia/article/view/1065 10.31285/AGRO.06.1065 Agrociencia Uruguay; Vol. 6 No. 2 (2002); 1- 16 Agrociencia Uruguay; Vol. 6 Núm. 2 (2002); 1- 16 Agrociencia Uruguay; v. 6 n. 2 (2002); 1- 16 2730-5066 eng https://agrocienciauruguay.uy/index.php/agrociencia/article/view/1065/1174 Copyright (c) 2002 Agrociencia Uruguay http://creativecommons.org/licenses/by/4.0 |
| institution |
UDELAR |
| collection |
OJS |
| country |
Uruguay |
| countrycode |
UY |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-agrociencia-uy |
| tag |
revista |
| region |
America del Sur |
| libraryname |
Biblioteca de la Facultad de Agronomía de la UDELAR de UY |
| language |
eng |
| format |
Digital |
| author |
Agustí, M. Martínez-Fuentes, A. Mesejo, C. |
| spellingShingle |
Agustí, M. Martínez-Fuentes, A. Mesejo, C. Citrus fruit quality: Physiological basis and techniques of improvement. |
| author_facet |
Agustí, M. Martínez-Fuentes, A. Mesejo, C. |
| author_sort |
Agustí, M. |
| title |
Citrus fruit quality: Physiological basis and techniques of improvement. |
| title_short |
Citrus fruit quality: Physiological basis and techniques of improvement. |
| title_full |
Citrus fruit quality: Physiological basis and techniques of improvement. |
| title_fullStr |
Citrus fruit quality: Physiological basis and techniques of improvement. |
| title_full_unstemmed |
Citrus fruit quality: Physiological basis and techniques of improvement. |
| title_sort |
citrus fruit quality: physiological basis and techniques of improvement. |
| description |
Fruit size can be improved either by increasing carbohydrates availability to fruit or by increasing fruit sink strength. Application of synthetic auxins may act in these two ways, depending on the date of treatment. When they are applied during the physiological drop they have a thinning effect, reducing competition for carbohydrates among developing fruitlets; when applied at the onset of cell enlargement stage fruit sink strength is increased and carbohydrate accumulation in the fruit is enhanced.
Physiological disorders such as creasing, splitting, piffing, peel pitting, etc. Can be reduced in intensity or minimized using gibberellic acid, synthetic auxins or a mixture of both. Fruit maturation (colouring) can be enhanced using ethephon or figaron and can be delayed using gibberellic acid. The effectiveness of some of these treatments can be significantly improved by adding mineral salts, mainly nitrogen compounds in the spray mix. In this article best treatment strategies and their mechanism of action are discussed. |
| publisher |
Coeditada entre Facultad de Agronomía - Udelar y el Instituto Nacional de Investigación Agropecuaria (INIA) |
| publishDate |
2002 |
| url |
https://agrocienciauruguay.uy/index.php/agrociencia/article/view/1065 |
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