Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives
The relationship between growth analysis and biomass distribution and photosynthesis in the nursery phase of cacao seedlings is limited. The objective was to determine the morphological differences, biomass distribution, and physiological performance of seedlings from eight cacao genotypes (EETP-800...
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2025
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| Online Erişim: | https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586 |
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Etiketle | _version_ | 1858426949567774720 |
|---|---|
| author | Tezara, Wilmer |
| author2 | Semisterra Lugo, Linda María Gracia Vela, Leidy Laura Vera Saavedra, Liliana Estefanía De La Cruz De La Cruz, Edson Fabian Reynel Chila , Víctor Hugo |
| author2_role | author author author author author |
| author_facet | Tezara, Wilmer Semisterra Lugo, Linda María Gracia Vela, Leidy Laura Vera Saavedra, Liliana Estefanía De La Cruz De La Cruz, Edson Fabian Reynel Chila , Víctor Hugo |
| author_role | author |
| collection | Revistas Escuela Superior Politécnica Agropecuaria de Manabí |
| dc.creator.none.fl_str_mv | Tezara, Wilmer Semisterra Lugo, Linda María Gracia Vela, Leidy Laura Vera Saavedra, Liliana Estefanía De La Cruz De La Cruz, Edson Fabian Reynel Chila , Víctor Hugo |
| dc.date.none.fl_str_mv | 2025-12-27 |
| dc.format.none.fl_str_mv | application/pdf text/html application/zip |
| dc.identifier.none.fl_str_mv | https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586 10.51260/13908103.586 |
| dc.language.none.fl_str_mv | spa |
| dc.publisher.none.fl_str_mv | Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López |
| dc.relation.none.fl_str_mv | https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586/1096 https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586/1098 https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586/1099 |
| dc.rights.none.fl_str_mv | http://creativecommons.org/licenses/by-nc-sa/4.0 info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | Revista ESPAMCIENCIA; Vol. 16 Núm. 2 (2025): REVISTA ESPAMCIENCIA 2025; 55-67 1390-8103 reponame:Revistas Escuela Superior Politécnica Agropecuaria de Manabí instname:Escuela Superior Politécnica Agropecuaria de Manabí instacron:ESPAM |
| dc.subject.none.fl_str_mv | análisis de crecimiento balance de carbono Fotosíntesis biomasa fenología Growth analysis carbon balance photosynthesis biomass phenology |
| dc.title.none.fl_str_mv | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives Distribución de biomasa y desempeño fisiológico en genotipos de cacao: perspectivas ecofisiológicas |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | The relationship between growth analysis and biomass distribution and photosynthesis in the nursery phase of cacao seedlings is limited. The objective was to determine the morphological differences, biomass distribution, and physiological performance of seedlings from eight cacao genotypes (EETP-800, EETP-801, CCN-51, PMA 12, PMA 14, EETP-802, EETP-804, and APROCANE) under nursery conditions. Allometric measurements (height, stem diameter, and number of leaves), biomass distribution to different plant organs, growth analysis, and physiological parameters (photosynthesis rate, A; transpiration, E; stomatal conductance, gs; water use efficiency, WUE; water potential, Ψ; leaf area index, LAI; and chlorophyll content) were evaluated. Significant differences were found in root, stem, and leaf dry biomass, relative growth rate (RGR), net assimilation rate (NAR), leaf area ratio, specific leaf area, leaf weight ratio, and physiological parameters among the different genotypes. The highest RGR was found in the EETP-800 genotype (0.024 d-1), followed by PMA14, CCN-51, and EETP-801 (0.013–0.015 d-1); these rates are considerably low compared to other tropical crops. No correlations were found between RGR, NAR, and A. The results suggest that high genetic variability in cacao genotypes is expressed in morphological and physiological differences, as well as ingrowth and biomass distribution. . |
| eu_rights_str_mv | openAccess |
| format | article |
| id | RevESPAM_01ff833d6b50ff3b508e8c2d64c16219 |
| identifier_str_mv | 10.51260/13908103.586 |
| instacron_str | ESPAM |
| institution | ESPAM |
| instname_str | Escuela Superior Politécnica Agropecuaria de Manabí |
| language | spa |
| network_acronym_str | RevESPAM |
| network_name_str | Revistas Escuela Superior Politécnica Agropecuaria de Manabí |
| oai_identifier_str | oai:ojs.pkp.sfu.ca:article/586 |
| publishDate | 2025 |
| publisher.none.fl_str_mv | Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López |
| reponame_str | Revistas Escuela Superior Politécnica Agropecuaria de Manabí |
| repository.mail.fl_str_mv | . |
| repository.name.fl_str_mv | Revistas Escuela Superior Politécnica Agropecuaria de Manabí - Escuela Superior Politécnica Agropecuaria de Manabí |
| repository_id_str | 0 |
| rights_invalid_str_mv | http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spelling | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectivesDistribución de biomasa y desempeño fisiológico en genotipos de cacao: perspectivas ecofisiológicasTezara, WilmerSemisterra Lugo, Linda MaríaGracia Vela, Leidy LauraVera Saavedra, Liliana EstefaníaDe La Cruz De La Cruz, Edson FabianReynel Chila , Víctor Hugoanálisis de crecimientobalance de carbonoFotosíntesisbiomasafenologíaGrowth analysiscarbon balancephotosynthesisbiomassphenologyThe relationship between growth analysis and biomass distribution and photosynthesis in the nursery phase of cacao seedlings is limited. The objective was to determine the morphological differences, biomass distribution, and physiological performance of seedlings from eight cacao genotypes (EETP-800, EETP-801, CCN-51, PMA 12, PMA 14, EETP-802, EETP-804, and APROCANE) under nursery conditions. Allometric measurements (height, stem diameter, and number of leaves), biomass distribution to different plant organs, growth analysis, and physiological parameters (photosynthesis rate, A; transpiration, E; stomatal conductance, gs; water use efficiency, WUE; water potential, Ψ; leaf area index, LAI; and chlorophyll content) were evaluated. Significant differences were found in root, stem, and leaf dry biomass, relative growth rate (RGR), net assimilation rate (NAR), leaf area ratio, specific leaf area, leaf weight ratio, and physiological parameters among the different genotypes. The highest RGR was found in the EETP-800 genotype (0.024 d-1), followed by PMA14, CCN-51, and EETP-801 (0.013–0.015 d-1); these rates are considerably low compared to other tropical crops. No correlations were found between RGR, NAR, and A. The results suggest that high genetic variability in cacao genotypes is expressed in morphological and physiological differences, as well as ingrowth and biomass distribution. .La relación entre el análisis de crecimiento con la distribución de biomasa y fotosíntesis en la fase de vivero de plántulas de cacao es escasa. El objetivo fue conocer las diferencias morfológicas, distribución de biomasa y desempeño fisiológico de plántulas de ocho genotipos de cacao (EETP-800, EETP-801, CCN-51, PMA 12, PMA 14, EETP-802, EETP-804 y APROCANE) en condiciones de vivero. Se evaluaron medidas alométricas (altura, diámetro del tallo y numero de hojas), distribución de biomasa a los diferentes órganos de las plantas, análisis de crecimiento y parámetros fisiológicos (tasa de fotosíntesis, A; transpiración, E; conductancia estomática, gs; eficiencia de uso de agua, EUA, potencial hídrico, Ψ; índice de área foliar, IAF y contenido de clorofila). Se encontraron diferencias significativas en biomasa seca de raíz, tallo, hoja, tasa relativa de crecimiento (TRC), tasa de asimilación neta (TAN), cociente de área foliar, área foliar específica, cociente de peso foliar y los parámetros fisiológicos, entre los diferentes genotipos. La mayor TRC se encontró en el genotipo EETP-800 (0,024 d-1) seguido por PMA14, CCN-51 y EETP-801 (0,013 - 0,015 d-1); tasas considerablemente bajas en comparación con otros cultivos tropicales. No se encontraron correlaciones entre la TRC, TAN y A. Los resultados sugieren que la alta variabilidad genética en los genotipos de cacao se expresa en diferencias morfológicas, fisiológicas, crecimiento y distribución de biomasa.Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López2025-12-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/htmlapplication/ziphttps://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/58610.51260/13908103.586Revista ESPAMCIENCIA; Vol. 16 Núm. 2 (2025): REVISTA ESPAMCIENCIA 2025; 55-671390-8103reponame:Revistas Escuela Superior Politécnica Agropecuaria de Manabíinstname:Escuela Superior Politécnica Agropecuaria de Manabíinstacron:ESPAMspahttps://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586/1096https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586/1098https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586/1099http://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccess2026-01-29T17:58:45Zoai:ojs.pkp.sfu.ca:article/586Institucionalhttp://revistasespam.espam.edu.ec/Universidad públicahttp://www.espam.edu.ec/http://revistasespam.espam.edu.ec/oai.Ecuador.1390-81031390-597Xopendoar:02026-01-29T17:58:45Revistas Escuela Superior Politécnica Agropecuaria de Manabí - Escuela Superior Politécnica Agropecuaria de Manabífalse |
| spellingShingle | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives Tezara, Wilmer análisis de crecimiento balance de carbono Fotosíntesis biomasa fenología Growth analysis carbon balance photosynthesis biomass phenology |
| status_str | publishedVersion |
| title | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives |
| title_full | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives |
| title_fullStr | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives |
| title_full_unstemmed | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives |
| title_short | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives |
| title_sort | Biomass distribution and physiological performance in cocoa genotypes: ecophysiological perspectives |
| topic | análisis de crecimiento balance de carbono Fotosíntesis biomasa fenología Growth analysis carbon balance photosynthesis biomass phenology |
| url | https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/586 |