Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods
Estimating photosynthetic pigments, such as chlorophylls, as well as the foliar nitrogen content is very important for the evaluation of the nutritional and physiological status of a plant. However, producers cannot easily carry out these estimations because they involve analyses in laboratories tha...
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| Format: | Online |
| Language: | eng |
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Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
2020
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/11341 |
| _version_ | 1801706290308710400 |
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| author | Güiza-Castillo, Luisa-Liliana Pinzón-Sandoval, Elberth-Hernando Serrano-Cely, Pablo-Antonio Cely-Reyes, German-Eduardo Serrano-Agudelo, Pablo-Cesar |
| author_facet | Güiza-Castillo, Luisa-Liliana Pinzón-Sandoval, Elberth-Hernando Serrano-Cely, Pablo-Antonio Cely-Reyes, German-Eduardo Serrano-Agudelo, Pablo-Cesar |
| author_sort | Güiza-Castillo, Luisa-Liliana |
| collection | OJS |
| description | Estimating photosynthetic pigments, such as chlorophylls, as well as the foliar nitrogen content is very important for the evaluation of the nutritional and physiological status of a plant. However, producers cannot easily carry out these estimations because they involve analyses in laboratories that are costly and time-consuming. The SPAD-502 total chlorophyll index meter is efficient at rapidly estimating total chlorophyll contents in situ, along with its relationship with the total nitrogen concentration in tissues. The objective of this research was to validate a non-destructive in situ method (SPAD) for use in place of destructive estimation methods for chlorophylls a, b and total, as well as the foliar nitrogen concentration in guava plants (Psidium guajaba L.), cv. Regional Roja, in three phenological stages under the conditions of the municipality of Vélez-Santander (Colombia). The data obtained with the SPAD-502 and the content of chlorophylls a, b and total were adjusted to a second-degree polynomial with correlation coefficients (r) greater than 0.91 for the three phenological stages, while the concentration of foliar nitrogen was adjusted to a linear type model with determination coefficients (R2) higher than 0.90, indicating a highly linear correlation between the non-destructive method and the destructive methods used in the present study. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-11341 |
| institution | Revista Colombiana de Ciencias Hortícolas |
| language | eng |
| publishDate | 2020 |
| publisher | Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-113412021-01-27T15:50:03Z Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods Estimación y correlación de contenidos de clorofilas y nitrógeno en Psidium guajava L. mediante métodos destructivos y no destructivos Güiza-Castillo, Luisa-Liliana Pinzón-Sandoval, Elberth-Hernando Serrano-Cely, Pablo-Antonio Cely-Reyes, German-Eduardo Serrano-Agudelo, Pablo-Cesar SPAD Photosynthetic pigments Mineral nutrition Portable meter Nutritional status Plant nutrition Nitrogen Fruit SPAD Pigmentos fotosintéticos Nutrición mineral Medidor portátil Estatus nutricional Nutrición vegetal Nitrógeno Frutales Estimating photosynthetic pigments, such as chlorophylls, as well as the foliar nitrogen content is very important for the evaluation of the nutritional and physiological status of a plant. However, producers cannot easily carry out these estimations because they involve analyses in laboratories that are costly and time-consuming. The SPAD-502 total chlorophyll index meter is efficient at rapidly estimating total chlorophyll contents in situ, along with its relationship with the total nitrogen concentration in tissues. The objective of this research was to validate a non-destructive in situ method (SPAD) for use in place of destructive estimation methods for chlorophylls a, b and total, as well as the foliar nitrogen concentration in guava plants (Psidium guajaba L.), cv. Regional Roja, in three phenological stages under the conditions of the municipality of Vélez-Santander (Colombia). The data obtained with the SPAD-502 and the content of chlorophylls a, b and total were adjusted to a second-degree polynomial with correlation coefficients (r) greater than 0.91 for the three phenological stages, while the concentration of foliar nitrogen was adjusted to a linear type model with determination coefficients (R2) higher than 0.90, indicating a highly linear correlation between the non-destructive method and the destructive methods used in the present study. La estimación de pigmentos fotosintéticos como las clorofilas, así como el contenido de nitrógeno foliar son muy importantes para la evaluación del estatus nutricional y fisiológico de la planta; sin embargo, los productores no pueden acceder de forma fácil a estos, debido a que implican el análisis en laboratorios que en ocasiones generan costo y demora en la obtención de los resultados. El medidor de índice de clorofila total tipo SPAD-502 es un equipo que ha demostrado su eficiencia en cuanto a la estimación rápida de los contenidos totales de clorofila in situ, así también, su relación con la concentración del nitrógeno total en tejido. El objetivo de la investigación fue el de validar el método in situ, no destructivo (SPAD) frente a los métodos de estimación destructivos de clorofilas a, b y total, así como la concentración de nitrógeno en tejido foliar en plantas de guayaba (Psidium guajaba L.) cv. Regional Roja en tres estadios fenológicos, bajo condiciones del municipio de Velez-Santander (Colombia). Los datos obtenidos con el SPAD-502 y el contenido de clorofilas a, b y total, se ajustaron a un polinomio de segundo grado con coeficientes de correlaciones (r) mayores a 0,91, en los tres estadios fenológicos evaluados, mientras que la concentración de nitrógeno foliar se ajustó a un modelo de tipo lineal con coeficientes de determinación (R2) superior al 0,90, esto indica la existencia de una alta correlación lineal entre el método no destructivo y los métodos destructivos empleados en el presente estudio. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2020-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/11341 10.17584/rcch.2020v14i1.11341 Revista Colombiana de Ciencias Hortícolas; Vol. 14 No. 1 (2020); 26-31 Revista Colombiana de Ciencias Hortícolas; Vol. 14 Núm. 1 (2020); 26-31 Revista Colombiana de Ciencias Hortícolas; Vol. 14 No 1 (2020); 26-31 Revista Colombiana de Ciencias Hortícolas; V. 14 N. 1 (2020); 26-31 Revista Colombiana de Ciencias Hortícolas; v. 14 n. 1 (2020); 26-31 2422-3719 2011-2173 eng https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/11341/9782 Colombia; Santander; Velez Colombia; Santander; Vélez Copyright (c) 2020 Revista Colombiana de Ciencias Hortícolas |
| spellingShingle | SPAD Photosynthetic pigments Mineral nutrition Portable meter Nutritional status Plant nutrition Nitrogen Fruit SPAD Pigmentos fotosintéticos Nutrición mineral Medidor portátil Estatus nutricional Nutrición vegetal Nitrógeno Frutales Güiza-Castillo, Luisa-Liliana Pinzón-Sandoval, Elberth-Hernando Serrano-Cely, Pablo-Antonio Cely-Reyes, German-Eduardo Serrano-Agudelo, Pablo-Cesar Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods |
| title | Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods |
| title_alt | Estimación y correlación de contenidos de clorofilas y nitrógeno en Psidium guajava L. mediante métodos destructivos y no destructivos |
| title_full | Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods |
| title_fullStr | Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods |
| title_full_unstemmed | Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods |
| title_short | Estimation and correlation of chlorophyll and nitrogen contents in Psidium guajava L. with destructive and non-destructive methods |
| title_sort | estimation and correlation of chlorophyll and nitrogen contents in psidium guajava l with destructive and non destructive methods |
| topic | SPAD Photosynthetic pigments Mineral nutrition Portable meter Nutritional status Plant nutrition Nitrogen Fruit SPAD Pigmentos fotosintéticos Nutrición mineral Medidor portátil Estatus nutricional Nutrición vegetal Nitrógeno Frutales |
| topic_facet | SPAD Photosynthetic pigments Mineral nutrition Portable meter Nutritional status Plant nutrition Nitrogen Fruit SPAD Pigmentos fotosintéticos Nutrición mineral Medidor portátil Estatus nutricional Nutrición vegetal Nitrógeno Frutales |
| url | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/11341 |
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