Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stages
Abstract: The objective of this work was to determine reference values for evaluating the nutritional status of 'Pêra' orange trees in different fruiting stages, using the compositional nutrient diagnosis (CND) method. The study used 243 leaf samples from 81 plots, with samplings performed...
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| Format: | Article |
| Language: | English |
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Embrapa Informação Tecnológica
2017-09-01
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| Series: | Pesquisa Agropecuária Brasileira |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900776&tlng=en |
| _version_ | 1818744446445944832 |
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| author | Jairo Rafael Machado Dias Paulo Guilherme Salvador Wadt Fábio Luiz Partelli Marcelo Curitiba Espindula Daniel Vidal Perez Fábio Régis Souza Anderson Cristian Bergamin Elaine Almeida Delarmelinda |
| author_facet | Jairo Rafael Machado Dias Paulo Guilherme Salvador Wadt Fábio Luiz Partelli Marcelo Curitiba Espindula Daniel Vidal Perez Fábio Régis Souza Anderson Cristian Bergamin Elaine Almeida Delarmelinda |
| author_sort | Jairo Rafael Machado Dias |
| collection | DOAJ |
| description | Abstract: The objective of this work was to determine reference values for evaluating the nutritional status of 'Pêra' orange trees in different fruiting stages, using the compositional nutrient diagnosis (CND) method. The study used 243 leaf samples from 81 plots, with samplings performed in plants bearing fruits with three and six months of age, and also in the main harvest (nine months). Plots with productivity higher than 30 Mg ha-1 were selected for the establishment of reference standards. Three normal ranges were evaluated for each nutrient in the reference population, comprehended by the confidence interval (CI) of the foliar content averages, by the mean±standard deviation (±SD), and by the mean±⅔SD. Regardless of the normal range of nutrients used, the leaf sampling periods interfered with the nutritional status of 'Pêra' orange tree. The normal ranges obtained from the criteria CI and ±⅔SD of the nutrient contents observed in the reference population frequently provided similar nutritional diagnoses. Zn, Ca, and Fe are the elements that most often limit the production of 'Pêra' orange in the state of Amazonas, Brazil. |
| first_indexed | 2024-12-18T02:44:26Z |
| format | Article |
| id | doaj.art-2de928ef649c467aade11ca4a47f9a85 |
| institution | Directory Open Access Journal |
| issn | 1678-3921 |
| language | English |
| last_indexed | 2024-12-18T02:44:26Z |
| publishDate | 2017-09-01 |
| publisher | Embrapa Informação Tecnológica |
| record_format | Article |
| series | Pesquisa Agropecuária Brasileira |
| spelling | doaj.art-2de928ef649c467aade11ca4a47f9a852022-12-21T21:23:36ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212017-09-0152977678510.1590/s0100-204x2017000900010Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stagesJairo Rafael Machado DiasPaulo Guilherme Salvador WadtFábio Luiz PartelliMarcelo Curitiba EspindulaDaniel Vidal PerezFábio Régis SouzaAnderson Cristian BergaminElaine Almeida DelarmelindaAbstract: The objective of this work was to determine reference values for evaluating the nutritional status of 'Pêra' orange trees in different fruiting stages, using the compositional nutrient diagnosis (CND) method. The study used 243 leaf samples from 81 plots, with samplings performed in plants bearing fruits with three and six months of age, and also in the main harvest (nine months). Plots with productivity higher than 30 Mg ha-1 were selected for the establishment of reference standards. Three normal ranges were evaluated for each nutrient in the reference population, comprehended by the confidence interval (CI) of the foliar content averages, by the mean±standard deviation (±SD), and by the mean±⅔SD. Regardless of the normal range of nutrients used, the leaf sampling periods interfered with the nutritional status of 'Pêra' orange tree. The normal ranges obtained from the criteria CI and ±⅔SD of the nutrient contents observed in the reference population frequently provided similar nutritional diagnoses. Zn, Ca, and Fe are the elements that most often limit the production of 'Pêra' orange in the state of Amazonas, Brazil.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900776&tlng=enCitrus limoniaCitrus sinensisDRISleaf samplingnutritional balance indexreference population |
| spellingShingle | Jairo Rafael Machado Dias Paulo Guilherme Salvador Wadt Fábio Luiz Partelli Marcelo Curitiba Espindula Daniel Vidal Perez Fábio Régis Souza Anderson Cristian Bergamin Elaine Almeida Delarmelinda Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stages Pesquisa Agropecuária Brasileira Citrus limonia Citrus sinensis DRIS leaf sampling nutritional balance index reference population |
| title | Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stages |
| title_full | Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stages |
| title_fullStr | Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stages |
| title_full_unstemmed | Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stages |
| title_short | Normal nutrient ranges and nutritional monitoring of 'Pêra' orange trees based on the CND method in different fruiting stages |
| title_sort | normal nutrient ranges and nutritional monitoring of pera orange trees based on the cnd method in different fruiting stages |
| topic | Citrus limonia Citrus sinensis DRIS leaf sampling nutritional balance index reference population |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900776&tlng=en |
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