Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes
To study the effect of different defoliation regimes on light interception, forage yield, spring regrowth and quality of one of the most expanded species in this region, Chloris gayana, we evaluate combinations of two defoliation frequencies (300 and 500 GDD) and two intensities (1 and 3 green stubb...
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| Format: | Artículo |
| Language: | Inglés |
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Taylor and Francis
2022
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| Online Access: | http://hdl.handle.net/20.500.12123/11357 https://www.tandfonline.com/doi/abs/10.1080/00288233.2022.2038212?src=&journalCode=tnza20 https://doi.org/10.1080/00288233.2022.2038212 |
| _version_ | 1855484769990606848 |
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| author | Ruolo, Maria Soledad Perez, Hector Eduardo Rodriguez, Adriana Mabel |
| author_browse | Perez, Hector Eduardo Rodriguez, Adriana Mabel Ruolo, Maria Soledad |
| author_facet | Ruolo, Maria Soledad Perez, Hector Eduardo Rodriguez, Adriana Mabel |
| author_sort | Ruolo, Maria Soledad |
| collection | INTA Digital |
| description | To study the effect of different defoliation regimes on light interception, forage yield, spring regrowth and quality of one of the most expanded species in this region, Chloris gayana, we evaluate combinations of two defoliation frequencies (300 and 500 GDD) and two intensities (1 and 3 green stubble leaves) in a controlled experiment that comprised 1500 GDD during summer and autumn. Defoliation frequency had a greater effect on the evaluated traits than defoliation intensity. Forage yield was lower under the higher (300 GDD) than under the lower (500 GDD) frequency defoliation (6699 vs. 8961 kg DM/ha, respectively), but forage showed higher leaf percentage (69.8 vs. 53.2%) and better nutritional value at 300 GDD (17.4 vs. 15.6%, 64.1 vs. 62.1%, 60.9 vs. 63.2% and 67.7 vs. 62.4% of crude protein, dry matter digestibility, neutral detergent fiber and its digestibility, respectively) than at 500 GDD. Spring tiller density was not affected by any of the defoliation regimes. Better livestock performance could be obtained by grazing at 300 GDD, but considering the whole growing season, more digestible dry matter is likely to be produced under defoliations every 500 GDD than every 300 GDD. |
| format | Artículo |
| id | INTA11357 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Taylor and Francis |
| publisherStr | Taylor and Francis |
| record_format | dspace |
| spelling | INTA113572022-03-10T10:30:29Z Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes Ruolo, Maria Soledad Perez, Hector Eduardo Rodriguez, Adriana Mabel Chloris Gayana Productividad Defoliación Productivity Digestibility Crude Protein Defoliation Digestibilidad Proteina Buta Rhodes Grass Defoliation Management To study the effect of different defoliation regimes on light interception, forage yield, spring regrowth and quality of one of the most expanded species in this region, Chloris gayana, we evaluate combinations of two defoliation frequencies (300 and 500 GDD) and two intensities (1 and 3 green stubble leaves) in a controlled experiment that comprised 1500 GDD during summer and autumn. Defoliation frequency had a greater effect on the evaluated traits than defoliation intensity. Forage yield was lower under the higher (300 GDD) than under the lower (500 GDD) frequency defoliation (6699 vs. 8961 kg DM/ha, respectively), but forage showed higher leaf percentage (69.8 vs. 53.2%) and better nutritional value at 300 GDD (17.4 vs. 15.6%, 64.1 vs. 62.1%, 60.9 vs. 63.2% and 67.7 vs. 62.4% of crude protein, dry matter digestibility, neutral detergent fiber and its digestibility, respectively) than at 500 GDD. Spring tiller density was not affected by any of the defoliation regimes. Better livestock performance could be obtained by grazing at 300 GDD, but considering the whole growing season, more digestible dry matter is likely to be produced under defoliations every 500 GDD than every 300 GDD. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Ruolo, Maria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Ruolo, Maria Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Unidad de Estudios Agropecuarios (UDEA); Argentina Fil: Ruolo, Maria Soledad. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Departamento de Producción Animal. Cátedra de Forrajes y manejo de pasturas; Argentina Fil: Perez, Hector Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina Fil: Rodriguez, Adriana Mabel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal. Cátedra de Forrajicultura; Argentina 2022-03-10T10:20:25Z 2022-03-10T10:20:25Z 2022-02-22 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11357 https://www.tandfonline.com/doi/abs/10.1080/00288233.2022.2038212?src=&journalCode=tnza20 0028-8233 1175-8775 (online) https://doi.org/10.1080/00288233.2022.2038212 eng info:eu-repo/semantics/restrictedAccess application/pdf Taylor and Francis New Zealand Journal of Agricultural Research (2022). (Published online: 22 Feb 2022) |
| spellingShingle | Chloris Gayana Productividad Defoliación Productivity Digestibility Crude Protein Defoliation Digestibilidad Proteina Buta Rhodes Grass Defoliation Management Ruolo, Maria Soledad Perez, Hector Eduardo Rodriguez, Adriana Mabel Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes |
| title | Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes |
| title_full | Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes |
| title_fullStr | Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes |
| title_full_unstemmed | Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes |
| title_short | Light interception, yield, spring regrowth and quality of Chloris gayana under different defoliation regimes |
| title_sort | light interception yield spring regrowth and quality of chloris gayana under different defoliation regimes |
| topic | Chloris Gayana Productividad Defoliación Productivity Digestibility Crude Protein Defoliation Digestibilidad Proteina Buta Rhodes Grass Defoliation Management |
| url | http://hdl.handle.net/20.500.12123/11357 https://www.tandfonline.com/doi/abs/10.1080/00288233.2022.2038212?src=&journalCode=tnza20 https://doi.org/10.1080/00288233.2022.2038212 |
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