Evaluation of six leaf angle distribution functions in the Castillo® coffee variety
The study was conducted at the “Estacion Central Naranjal Cenicafe” (National Coffee Research Center, Chinchina, Caldas, Colombia) on Coffea arabica L. variety Castillo® to find the leaf angle distribution function that best described the tilt of the angles present in the canopy. Leaf angles were re...
- Autores:
-
Unigarro M., Carlos Andrés
Jaramillo R., Álvaro
Flórez R., Claudia Patricia
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2017
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/61393
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/61393
http://bdigital.unal.edu.co/60203/
- Palabra clave:
- 63 Agricultura y tecnologías relacionadas / Agriculture
Coffea arabica L.
leaves
canopy.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Unigarro M., Carlos Andrésbb41888a-6a89-4e1d-b8d8-84deb09c147f300Jaramillo R., Álvaroc7b153d1-3c1e-46f3-a83f-0f9b4ba370fc300Flórez R., Claudia Patricia26646780-e57e-4f2f-a278-db16c13dfcf83002019-07-02T20:41:54Z2019-07-02T20:41:54Z2017-01-01ISSN: 2357-3732https://repositorio.unal.edu.co/handle/unal/61393http://bdigital.unal.edu.co/60203/The study was conducted at the “Estacion Central Naranjal Cenicafe” (National Coffee Research Center, Chinchina, Caldas, Colombia) on Coffea arabica L. variety Castillo® to find the leaf angle distribution function that best described the tilt of the angles present in the canopy. Leaf angles were recorded for 1,559 leaves located in the upper, middle and lower profiles of the canopy. The observed leaf angle distribution was compared with the Beta, ellipsoidal and four de Wit distribution functions. The fit between comparisons was determined by the Pearson χ2 test and its significance, the regression coefficient statistically equal to one and the RMSE. Likewise, the leaf angle distribution recorded in the field per profile and their combination was described based on three angle classes (1st class: 0°-30°; 2nd class: 30°-60°; and 3rd class: 60°-90°) according to the Goudriaan criterion. Generally, the leaf angle distribution present in the canopy of Castillo® coffee variety is adequately described by the Beta function with two parameters and the ellipsoidal function based on the adjustment provided by the statistical tests.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrariashttps://revistas.unal.edu.co/index.php/agrocol/article/view/60063Universidad Nacional de Colombia Revistas electrónicas UN Agronomía ColombianaAgronomía ColombianaUnigarro M., Carlos Andrés and Jaramillo R., Álvaro and Flórez R., Claudia Patricia (2017) Evaluation of six leaf angle distribution functions in the Castillo® coffee variety. Agronomía Colombiana, 35 (1). pp. 23-28. ISSN 2357-373263 Agricultura y tecnologías relacionadas / AgricultureCoffea arabica L.leavescanopy.Evaluation of six leaf angle distribution functions in the Castillo® coffee varietyArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL60063-334764-1-PB.pdfapplication/pdf153500https://repositorio.unal.edu.co/bitstream/unal/61393/1/60063-334764-1-PB.pdf2dd421ce5912d1a6595e07ad171b5d55MD51THUMBNAIL60063-334764-1-PB.pdf.jpg60063-334764-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg7838https://repositorio.unal.edu.co/bitstream/unal/61393/2/60063-334764-1-PB.pdf.jpg0c5628a2e861b2fd0dd1831b554be7e2MD52unal/61393oai:repositorio.unal.edu.co:unal/613932024-04-18 23:51:03.883Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
| dc.title.spa.fl_str_mv |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety |
| title |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety |
| spellingShingle |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety 63 Agricultura y tecnologías relacionadas / Agriculture Coffea arabica L. leaves canopy. |
| title_short |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety |
| title_full |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety |
| title_fullStr |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety |
| title_full_unstemmed |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety |
| title_sort |
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety |
| dc.creator.fl_str_mv |
Unigarro M., Carlos Andrés Jaramillo R., Álvaro Flórez R., Claudia Patricia |
| dc.contributor.author.spa.fl_str_mv |
Unigarro M., Carlos Andrés Jaramillo R., Álvaro Flórez R., Claudia Patricia |
| dc.subject.ddc.spa.fl_str_mv |
63 Agricultura y tecnologías relacionadas / Agriculture |
| topic |
63 Agricultura y tecnologías relacionadas / Agriculture Coffea arabica L. leaves canopy. |
| dc.subject.proposal.spa.fl_str_mv |
Coffea arabica L. leaves canopy. |
| description |
The study was conducted at the “Estacion Central Naranjal Cenicafe” (National Coffee Research Center, Chinchina, Caldas, Colombia) on Coffea arabica L. variety Castillo® to find the leaf angle distribution function that best described the tilt of the angles present in the canopy. Leaf angles were recorded for 1,559 leaves located in the upper, middle and lower profiles of the canopy. The observed leaf angle distribution was compared with the Beta, ellipsoidal and four de Wit distribution functions. The fit between comparisons was determined by the Pearson χ2 test and its significance, the regression coefficient statistically equal to one and the RMSE. Likewise, the leaf angle distribution recorded in the field per profile and their combination was described based on three angle classes (1st class: 0°-30°; 2nd class: 30°-60°; and 3rd class: 60°-90°) according to the Goudriaan criterion. Generally, the leaf angle distribution present in the canopy of Castillo® coffee variety is adequately described by the Beta function with two parameters and the ellipsoidal function based on the adjustment provided by the statistical tests. |
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2017 |
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2017-01-01 |
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2019-07-02T20:41:54Z |
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2019-07-02T20:41:54Z |
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Artículo de revista |
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ISSN: 2357-3732 |
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spa |
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https://revistas.unal.edu.co/index.php/agrocol/article/view/60063 |
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Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana Agronomía Colombiana |
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Unigarro M., Carlos Andrés and Jaramillo R., Álvaro and Flórez R., Claudia Patricia (2017) Evaluation of six leaf angle distribution functions in the Castillo® coffee variety. Agronomía Colombiana, 35 (1). pp. 23-28. ISSN 2357-3732 |
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