Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio
Two Brachiaria genotypes (Brachiaria decumbens, considered as better adapted and Brachiaria ruziziensis, considered as less adapted) and 8 progenies from the cross of these two (H-7, H-40, H-28 and H-58 more adapted; H-190, H-94, H-82 and H-179 less adapted) were evaluated during 6 weeks to detect d...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Español |
| Published: |
2009
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/43088 |
| _version_ | 1855524338919276544 |
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| author | Mejia Kerguelen, S Rao, Idupulapati M. Ramírez, H. Louw-Gaume, A Gaume, A Frossard, Emmanuel |
| author_browse | Frossard, Emmanuel Gaume, A Louw-Gaume, A Mejia Kerguelen, S Ramírez, H. Rao, Idupulapati M. |
| author_facet | Mejia Kerguelen, S Rao, Idupulapati M. Ramírez, H. Louw-Gaume, A Gaume, A Frossard, Emmanuel |
| author_sort | Mejia Kerguelen, S |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Two Brachiaria genotypes (Brachiaria decumbens, considered as better adapted and Brachiaria ruziziensis, considered as less adapted) and 8 progenies from the cross of these two (H-7, H-40, H-28 and H-58 more adapted; H-190, H-94, H-82 and H-179 less adapted) were evaluated during 6 weeks to detect differences in shoot and root attributes when grown in an acid soil from Matazul, Meta, Colombia. Results indicated that better adapted genotypes to low P had more shoot biomass, this could be explained by a greater leaf area, more P uptake in the stem and greater root volume. The root attributes, root length, root dry weight and root P content contributed to greater adaptation to low P availability in acid soils. Six weeks of plant growth was not adequate time to distinguish differences in adaptation to low P among the two parents, but it was adequate time to identify superior progenies from the crosses. |
| format | Journal Article |
| id | CGSpace43088 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| record_format | dspace |
| spelling | CGSpace430882025-05-28T14:52:28Z Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio Morphologic and physiological attributes of Brachiaria genotypes in soil with low available phosphorus and high aluminum saturation Mejia Kerguelen, S Rao, Idupulapati M. Ramírez, H. Louw-Gaume, A Gaume, A Frossard, Emmanuel feed crops brachiaria decumbens brachiaria ruziziensis genotypes biomass plant morphology mineral nutrients phosphorus adaptability genotipos biomasa morfología vegetal nutrientes minerales fosforo adaptabilidad Two Brachiaria genotypes (Brachiaria decumbens, considered as better adapted and Brachiaria ruziziensis, considered as less adapted) and 8 progenies from the cross of these two (H-7, H-40, H-28 and H-58 more adapted; H-190, H-94, H-82 and H-179 less adapted) were evaluated during 6 weeks to detect differences in shoot and root attributes when grown in an acid soil from Matazul, Meta, Colombia. Results indicated that better adapted genotypes to low P had more shoot biomass, this could be explained by a greater leaf area, more P uptake in the stem and greater root volume. The root attributes, root length, root dry weight and root P content contributed to greater adaptation to low P availability in acid soils. Six weeks of plant growth was not adequate time to distinguish differences in adaptation to low P among the two parents, but it was adequate time to identify superior progenies from the crosses. Se evaluaron en invernadero en un suelo de Matazul, Meta, Colombia durante 6 semanas, 2 genotipos de Brachiaria (uno mejor adaptado a bajo P, B. decumbens y otro menos adaptado, B. ruziziensis) y 8 progenies del cruzamiento entre ellos ( mejores adaptados: H-7, H-40, H-28, H-58; menos adaptados: H-190, H-94, H-82, H-179). Los genotipos mejor adaptados presentaron mayor biomasa aérea, explicada por mayor área foliar, mayor absorción de P en el tallo y mayor volumen de raíz. Las características morfológicas de las raíces, principalmente longitud, peso seco y contenido de P, permiteron mejor adaptación a bajo P disponible en el suelo. El periodo de evaluación fue suficiente para observar diferencias entre progenies. 2009 2014-09-24T08:41:36Z 2014-09-24T08:41:36Z Journal Article https://hdl.handle.net/10568/43088 es Open Access Mejia Keruguelen, Sergio et al. Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio. Acta Agron. [online]. 2009, vol.58, n.1 [cited 2014-08-12], pp. 1-8. |
| spellingShingle | feed crops brachiaria decumbens brachiaria ruziziensis genotypes biomass plant morphology mineral nutrients phosphorus adaptability genotipos biomasa morfología vegetal nutrientes minerales fosforo adaptabilidad Mejia Kerguelen, S Rao, Idupulapati M. Ramírez, H. Louw-Gaume, A Gaume, A Frossard, Emmanuel Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio |
| title | Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio |
| title_full | Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio |
| title_fullStr | Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio |
| title_full_unstemmed | Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio |
| title_short | Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio |
| title_sort | atributos morfologicos y fisiologicos de genotipos de brachiaria en un suelo con bajo fosforo disponible y alta saturacion de aluminio |
| topic | feed crops brachiaria decumbens brachiaria ruziziensis genotypes biomass plant morphology mineral nutrients phosphorus adaptability genotipos biomasa morfología vegetal nutrientes minerales fosforo adaptabilidad |
| url | https://hdl.handle.net/10568/43088 |
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