El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao
This investigation determined the soluble nitrogenous compounds in leaves of cocoa seedlings at three different ages, grown under conditions of K, Ca and Mg deficiencies, and combinations of these deficiencies. Under greenhouse conditions the plants were grown in sand with nutrient solutions. At the...
| Autores principales: | , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Español |
| Publicado: |
Instituto Interamericano de Ciencias Agrícolas (IICA)
2025
|
| Materias: | |
| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/13872 |
| _version_ | 1854965844607500288 |
|---|---|
| author | Machicado, Marcial Boynton, Damon |
| author_browse | Boynton, Damon Machicado, Marcial |
| author_facet | Machicado, Marcial Boynton, Damon |
| author_sort | Machicado, Marcial |
| collection | Repositorio CATIE |
| description | This investigation determined the soluble nitrogenous compounds in leaves of cocoa seedlings at three different ages, grown under conditions of K, Ca and Mg deficiencies, and combinations of these deficiencies. Under greenhouse conditions the plants were grown in sand with nutrient solutions. At the end of four, months, samples of 30, 60 and 90 day old leaves were taken and analized for soluble nitrogenous compounds using two directional paper chromatography. The effect of leaf age was the following: For total soluble N there was no significant difference between the means of 30 and 60 day old leaves but the means for 90 day old leaves, were higher than those of either younger age. The effect of the treatments was a follows: In general the lack of K and Mg caused the accumulation of intermediary nitrogenous compounds: the lack of Ca did not have such influence. Asparagine was responsible for much of this accumulation but there were also a sharp increase in aspartic acid, glutamine, argenine and proline. |
| format | Artículo |
| id | RepoCATIE13872 |
| institution | Centro Agronómico Tropical de Investigación y Enseñanza |
| language | Español |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Instituto Interamericano de Ciencias Agrícolas (IICA) |
| publisherStr | Instituto Interamericano de Ciencias Agrícolas (IICA) |
| record_format | dspace |
| spelling | RepoCATIE138722025-08-31T00:25:15Z El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao Machicado, Marcial Boynton, Damon Theobroma cacao||Theobroma cacao||Theobroma cacao||Theobroma cacao Plántula||seedlings||plântula||plantule Deficiencia de oligoelementos||trace element deficiencies||deficiência em micronutriente||carence en oligo-élement Potasio||potassium||Potássio||potassium Calcio||calcium||Cálcio||calcium Magnesio||magnesium||Magnésio||magnesium Hoja||leaves||folha||feuille Composición quimica Compuesto orgánico||organic compounds||composto orgânico||composé organique Síntoma||symptoms||sintoma||symptome Sede Central This investigation determined the soluble nitrogenous compounds in leaves of cocoa seedlings at three different ages, grown under conditions of K, Ca and Mg deficiencies, and combinations of these deficiencies. Under greenhouse conditions the plants were grown in sand with nutrient solutions. At the end of four, months, samples of 30, 60 and 90 day old leaves were taken and analized for soluble nitrogenous compounds using two directional paper chromatography. The effect of leaf age was the following: For total soluble N there was no significant difference between the means of 30 and 60 day old leaves but the means for 90 day old leaves, were higher than those of either younger age. The effect of the treatments was a follows: In general the lack of K and Mg caused the accumulation of intermediary nitrogenous compounds: the lack of Ca did not have such influence. Asparagine was responsible for much of this accumulation but there were also a sharp increase in aspartic acid, glutamine, argenine and proline. 2025-08-29T15:30:54Z 2025-08-29T15:30:54Z 1961-10-01 Artículo https://repositorio.catie.ac.cr/handle/11554/13872 openAccess es Turrialba Vol. 11, no. 4 5 application/pdf Instituto Interamericano de Ciencias Agrícolas (IICA) |
| spellingShingle | Theobroma cacao||Theobroma cacao||Theobroma cacao||Theobroma cacao Plántula||seedlings||plântula||plantule Deficiencia de oligoelementos||trace element deficiencies||deficiência em micronutriente||carence en oligo-élement Potasio||potassium||Potássio||potassium Calcio||calcium||Cálcio||calcium Magnesio||magnesium||Magnésio||magnesium Hoja||leaves||folha||feuille Composición quimica Compuesto orgánico||organic compounds||composto orgânico||composé organique Síntoma||symptoms||sintoma||symptome Sede Central Machicado, Marcial Boynton, Damon El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao |
| title | El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao |
| title_full | El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao |
| title_fullStr | El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao |
| title_full_unstemmed | El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao |
| title_short | El efecto de las deficiencias de potasio, calcio y magnesio sobre los constituyentes intermediarios de nitrógeno en las hojas de cacao |
| title_sort | el efecto de las deficiencias de potasio calcio y magnesio sobre los constituyentes intermediarios de nitrogeno en las hojas de cacao |
| topic | Theobroma cacao||Theobroma cacao||Theobroma cacao||Theobroma cacao Plántula||seedlings||plântula||plantule Deficiencia de oligoelementos||trace element deficiencies||deficiência em micronutriente||carence en oligo-élement Potasio||potassium||Potássio||potassium Calcio||calcium||Cálcio||calcium Magnesio||magnesium||Magnésio||magnesium Hoja||leaves||folha||feuille Composición quimica Compuesto orgánico||organic compounds||composto orgânico||composé organique Síntoma||symptoms||sintoma||symptome Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/13872 |
| work_keys_str_mv | AT machicadomarcial elefectodelasdeficienciasdepotasiocalcioymagnesiosobrelosconstituyentesintermediariosdenitrogenoenlashojasdecacao AT boyntondamon elefectodelasdeficienciasdepotasiocalcioymagnesiosobrelosconstituyentesintermediariosdenitrogenoenlashojasdecacao |