Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus
Background: Megathyrsus maximus is a forage grass native to Africa but widely cultivated in tropical and subtropical regions of the world where it is part of the grazing food chain. This study aimed to evaluate five M. maximus genotypes for the effect of maturity on their morpho-agronomic traits, nu...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Wiley
2024
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/19242 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/jsfa.13186 https://doi.org/10.1002/jsfa.13186 |
| _version_ | 1855486331738652672 |
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| author | Hernandez Alvarez, Urys Mileth Lopez Colomba, Eliana Bollati, Graciela P. Carloni, Edgardo José Reutemann, Andrea G. Grunberg, Karina |
| author_browse | Bollati, Graciela P. Carloni, Edgardo José Grunberg, Karina Hernandez Alvarez, Urys Mileth Lopez Colomba, Eliana Reutemann, Andrea G. |
| author_facet | Hernandez Alvarez, Urys Mileth Lopez Colomba, Eliana Bollati, Graciela P. Carloni, Edgardo José Reutemann, Andrea G. Grunberg, Karina |
| author_sort | Hernandez Alvarez, Urys Mileth |
| collection | INTA Digital |
| description | Background: Megathyrsus maximus is a forage grass native to Africa but widely cultivated in tropical and subtropical regions of the world where it is part of the grazing food chain. This study aimed to evaluate five M. maximus genotypes for the effect of maturity on their morpho-agronomic traits, nutritional composition and digestibility, and to correlate their leaf blade and stem anatomy with their nutritional value.
Results: The proportion of sclerenchyma tissues increased as maturity was reached, while lignin accumulation was differentiated between genotypes. Gatton Panic, Green Panic and Mutale genotypes maintained their acid detergent lignin (ADL) values
for leaf blades in the three cuts evaluated. In sacco ruminal dry matter disappearance was lower in Green Panic genotype at the vegetative stage for stems, but not for leaf blades. Significant positive correlations were found between dry matter disappearance
and mesophyll tissues, and the latter were negatively correlated with neutral detergent fiber (NDF) and ADL.
Conclusion: Our results strongly indicate that cutting age and genotype affected the nutritional value of M. maximus leaf blades and stems, with a more pronounced loss of quality in stems than in leaf blades. We recommend increasing the frequency of
grazing at early stage or anticipating the stage of stem elongation in Green Panic to produce forage with better nutritional value. |
| format | Artículo |
| id | INTA19242 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA192422024-09-04T10:39:57Z Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus Hernandez Alvarez, Urys Mileth Lopez Colomba, Eliana Bollati, Graciela P. Carloni, Edgardo José Reutemann, Andrea G. Grunberg, Karina Lignins Nutritive Value Grasses Ligninas Valor Nutritivo Gramineas Grass Forage quality Nutritional Value Megathyrsus maximus Background: Megathyrsus maximus is a forage grass native to Africa but widely cultivated in tropical and subtropical regions of the world where it is part of the grazing food chain. This study aimed to evaluate five M. maximus genotypes for the effect of maturity on their morpho-agronomic traits, nutritional composition and digestibility, and to correlate their leaf blade and stem anatomy with their nutritional value. Results: The proportion of sclerenchyma tissues increased as maturity was reached, while lignin accumulation was differentiated between genotypes. Gatton Panic, Green Panic and Mutale genotypes maintained their acid detergent lignin (ADL) values for leaf blades in the three cuts evaluated. In sacco ruminal dry matter disappearance was lower in Green Panic genotype at the vegetative stage for stems, but not for leaf blades. Significant positive correlations were found between dry matter disappearance and mesophyll tissues, and the latter were negatively correlated with neutral detergent fiber (NDF) and ADL. Conclusion: Our results strongly indicate that cutting age and genotype affected the nutritional value of M. maximus leaf blades and stems, with a more pronounced loss of quality in stems than in leaf blades. We recommend increasing the frequency of grazing at early stage or anticipating the stage of stem elongation in Green Panic to produce forage with better nutritional value. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Hernandez Alvarez, Urys Mileth. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA) ; Argentina Fil: Hernandez Alvarez, Urys Mileth. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Lopez Colomba, Eliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Lopez Colomba, Eliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina Fil: Lopez Colomba, Eliana. Universidad Católica de Córdoba. Facultad de Ciencias Agropecuarias; Argentina Fil: Bollati, Graciela P. Universidad Católica de Córdoba. Facultad de Ciencias Agropecuarias; Argentina Fil: Carloni, Edgardo José. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Carloni, Edgardo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina Fil: Reutemann, Andrea G. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Department of Plant Biology; Argentina Fil: Reutemann, Andrea G. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina Fil: Grunberg, Karina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Grunberg, Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina 2024-09-04T10:27:22Z 2024-09-04T10:27:22Z 2024-03-30 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/19242 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/jsfa.13186 0022-5142 1097-0010 (online) https://doi.org/10.1002/jsfa.13186 eng info:eu-repograntAgreement/INTA/PNPA-1126072/AR./Desarrollo de cultivares superiores de especies forrajeras para sistemas ganaderos y agricolo-ganaderos de la Argentina. info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Wiley Journal of the Science of Food and Agriculture 104 (5): 2937-2946. (March 2024) |
| spellingShingle | Lignins Nutritive Value Grasses Ligninas Valor Nutritivo Gramineas Grass Forage quality Nutritional Value Megathyrsus maximus Hernandez Alvarez, Urys Mileth Lopez Colomba, Eliana Bollati, Graciela P. Carloni, Edgardo José Reutemann, Andrea G. Grunberg, Karina Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus |
| title | Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus |
| title_full | Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus |
| title_fullStr | Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus |
| title_full_unstemmed | Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus |
| title_short | Effects of leaf and stem maturation on nutritional value in Megathyrsus maximus |
| title_sort | effects of leaf and stem maturation on nutritional value in megathyrsus maximus |
| topic | Lignins Nutritive Value Grasses Ligninas Valor Nutritivo Gramineas Grass Forage quality Nutritional Value Megathyrsus maximus |
| url | http://hdl.handle.net/20.500.12123/19242 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/jsfa.13186 https://doi.org/10.1002/jsfa.13186 |
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