Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay
Management of pear (Pyrus communis L.) trees for low N and high Ca content in the fruit reduced the severity of postharvest fungal decay. Application of N fertilizer 3 weeks before harvest supplied N for tree reserves and for flowers the following spring without increasing fruit N. Calcium chloride...
| Main Authors: | , , , |
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
American Society for Horticultural Science
2020
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| Subjects: | |
| Online Access: | https://journals.ashs.org/horttech/view/journals/horttech/2/3/article-p382.xml http://hdl.handle.net/20.500.12123/7215 https://doi.org/10.21273/HORTTECH.2.3.382 |
| _version_ | 1855483963390296064 |
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| author | Sugar, David Righetti, Timothy L. Sanchez, Enrique Eduardo Khemira, Habib |
| author_browse | Khemira, Habib Righetti, Timothy L. Sanchez, Enrique Eduardo Sugar, David |
| author_facet | Sugar, David Righetti, Timothy L. Sanchez, Enrique Eduardo Khemira, Habib |
| author_sort | Sugar, David |
| collection | INTA Digital |
| description | Management of pear (Pyrus communis L.) trees for low N and high Ca content in the fruit reduced the severity of postharvest fungal decay. Application of N fertilizer 3 weeks before harvest supplied N for tree reserves and for flowers the following spring without increasing fruit N. Calcium chloride sprays during the growing season increased fruit Ca content. Nitrogen and Ca management appear to be additive factors in decay reduction. Fruit density and position in the tree canopy influenced their response to N fertilization. Nitrogen: Ca ratios were lower in fruit from the east quadrant and bottom third of trees and from the distal portion of branches. High fruit density was associated with low N: Ca ratios. Nutritional manipulations appear to be compatible with other methods of postharvest decay control. |
| format | Artículo |
| id | INTA7215 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | American Society for Horticultural Science |
| publisherStr | American Society for Horticultural Science |
| record_format | dspace |
| spelling | INTA72152020-05-11T13:08:00Z Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay Sugar, David Righetti, Timothy L. Sanchez, Enrique Eduardo Khemira, Habib Pera Nitrógeno Calcio Enfermedades Postcosecha Aplicación de Abonos Pears Nitrogen Calcium Postharvest Decay Fertilizer Application Management of pear (Pyrus communis L.) trees for low N and high Ca content in the fruit reduced the severity of postharvest fungal decay. Application of N fertilizer 3 weeks before harvest supplied N for tree reserves and for flowers the following spring without increasing fruit N. Calcium chloride sprays during the growing season increased fruit Ca content. Nitrogen and Ca management appear to be additive factors in decay reduction. Fruit density and position in the tree canopy influenced their response to N fertilization. Nitrogen: Ca ratios were lower in fruit from the east quadrant and bottom third of trees and from the distal portion of branches. High fruit density was associated with low N: Ca ratios. Nutritional manipulations appear to be compatible with other methods of postharvest decay control. EEA Alto Valle Fil: Sugar, David. Oregon State University. Southern Oregon Experiment Station; Estados Unidos Fil: Righetti, Timothy L. Oregon State University. Department of Horticulture; Estados Unidos Fil: Sanchez, Enrique Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina Fil: Khemira, Habib. Oregon State University. Department of Horticulture; Estados Unidos 2020-05-11T13:00:14Z 2020-05-11T13:00:14Z 1992-07 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://journals.ashs.org/horttech/view/journals/horttech/2/3/article-p382.xml http://hdl.handle.net/20.500.12123/7215 1063-0198 1943-7714 https://doi.org/10.21273/HORTTECH.2.3.382 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf American Society for Horticultural Science HortTechnology 2 (3) : 382–387 (July 1992) |
| spellingShingle | Pera Nitrógeno Calcio Enfermedades Postcosecha Aplicación de Abonos Pears Nitrogen Calcium Postharvest Decay Fertilizer Application Sugar, David Righetti, Timothy L. Sanchez, Enrique Eduardo Khemira, Habib Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay |
| title | Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay |
| title_full | Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay |
| title_fullStr | Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay |
| title_full_unstemmed | Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay |
| title_short | Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay |
| title_sort | management of nitrogen and calcium in pear trees for enhancement of fruit resistance to postharvest decay |
| topic | Pera Nitrógeno Calcio Enfermedades Postcosecha Aplicación de Abonos Pears Nitrogen Calcium Postharvest Decay Fertilizer Application |
| url | https://journals.ashs.org/horttech/view/journals/horttech/2/3/article-p382.xml http://hdl.handle.net/20.500.12123/7215 https://doi.org/10.21273/HORTTECH.2.3.382 |
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