Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamics
The study was carried out between March 1st and July 1st, 2011, in order to evaluate the tillering pattern of the deferred Piata palisade grass (Brachiaria brizantha cv. Piata). Three sward heights were evaluated in the beginning of the period of deferment: lower (20 cm), medium (30 cm) and higher (...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Zootecnia
2013-01-01
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| Series: | Revista Brasileira de Zootecnia |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100006 |
| _version_ | 1818130257336598528 |
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| author | Braulio Maia de Lana Sousa Manoel Eduardo Rozalino Santos Hélio Henrique Vilela Márcia Cristina Teixeira da Silveira Gabriel de Oliveira Rocha Cássia Aparecida Soares Freitas Natascha Almeida Marques da Silva Domicio do Nascimento Júnior |
| author_facet | Braulio Maia de Lana Sousa Manoel Eduardo Rozalino Santos Hélio Henrique Vilela Márcia Cristina Teixeira da Silveira Gabriel de Oliveira Rocha Cássia Aparecida Soares Freitas Natascha Almeida Marques da Silva Domicio do Nascimento Júnior |
| author_sort | Braulio Maia de Lana Sousa |
| collection | DOAJ |
| description | The study was carried out between March 1st and July 1st, 2011, in order to evaluate the tillering pattern of the deferred Piata palisade grass (Brachiaria brizantha cv. Piata). Three sward heights were evaluated in the beginning of the period of deferment: lower (20 cm), medium (30 cm) and higher (40 cm). The experimental design was of completely randomized blocks with three replications. The Piata palisade grass deferred with low initial height presented lower leaf area index, lower light interception and higher leaf angle in relation to the ones deferred with medium and high heights. The advance in the period of deferment increased the leaf area index and the light interception by the sward, in a way that the highest values were recorded in the periods from 91 and 120 days. The leaf angle reduced linearly with the advance in the period of deferment. For basal and aerial tillers, the rates of appearance, mortality and survival of tillers, as well as the balance between appearance and mortality, and the tiller density stability index were not affected by the initial height of the sward. The stability index of the tiller density was lower in the period from 1 to 30 days of deferment in relation to the periods from 31 to 60, from 61 to 90 and from 91 to 120 days. The variation of the initial height of the Piata palisade grass does not influence the tiller density dynamics during the period of deferment. The reduction of the initial height of the Piata palisade grass improves the luminous environment inside the sward, but it does not stimulate the grass tillering during the period of deferment. |
| first_indexed | 2024-12-11T08:02:10Z |
| format | Article |
| id | doaj.art-87ea95e5b6464e868e0ce451a62fe0d9 |
| institution | Directory Open Access Journal |
| issn | 1516-3598 1806-9290 |
| language | English |
| last_indexed | 2024-12-11T08:02:10Z |
| publishDate | 2013-01-01 |
| publisher | Sociedade Brasileira de Zootecnia |
| record_format | Article |
| series | Revista Brasileira de Zootecnia |
| spelling | doaj.art-87ea95e5b6464e868e0ce451a62fe0d92022-12-22T01:15:06ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1516-35981806-92902013-01-014213643Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamicsBraulio Maia de Lana SousaManoel Eduardo Rozalino SantosHélio Henrique VilelaMárcia Cristina Teixeira da SilveiraGabriel de Oliveira RochaCássia Aparecida Soares FreitasNatascha Almeida Marques da SilvaDomicio do Nascimento JúniorThe study was carried out between March 1st and July 1st, 2011, in order to evaluate the tillering pattern of the deferred Piata palisade grass (Brachiaria brizantha cv. Piata). Three sward heights were evaluated in the beginning of the period of deferment: lower (20 cm), medium (30 cm) and higher (40 cm). The experimental design was of completely randomized blocks with three replications. The Piata palisade grass deferred with low initial height presented lower leaf area index, lower light interception and higher leaf angle in relation to the ones deferred with medium and high heights. The advance in the period of deferment increased the leaf area index and the light interception by the sward, in a way that the highest values were recorded in the periods from 91 and 120 days. The leaf angle reduced linearly with the advance in the period of deferment. For basal and aerial tillers, the rates of appearance, mortality and survival of tillers, as well as the balance between appearance and mortality, and the tiller density stability index were not affected by the initial height of the sward. The stability index of the tiller density was lower in the period from 1 to 30 days of deferment in relation to the periods from 31 to 60, from 61 to 90 and from 91 to 120 days. The variation of the initial height of the Piata palisade grass does not influence the tiller density dynamics during the period of deferment. The reduction of the initial height of the Piata palisade grass improves the luminous environment inside the sward, but it does not stimulate the grass tillering during the period of deferment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100006Brachiaria brizanthadeferred grazingecophysiologytiller |
| spellingShingle | Braulio Maia de Lana Sousa Manoel Eduardo Rozalino Santos Hélio Henrique Vilela Márcia Cristina Teixeira da Silveira Gabriel de Oliveira Rocha Cássia Aparecida Soares Freitas Natascha Almeida Marques da Silva Domicio do Nascimento Júnior Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamics Revista Brasileira de Zootecnia Brachiaria brizantha deferred grazing ecophysiology tiller |
| title | Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamics |
| title_full | Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamics |
| title_fullStr | Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamics |
| title_full_unstemmed | Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamics |
| title_short | Piata palisade grass deferred with two distinct initial heights: luminous environment and tillering dynamics |
| title_sort | piata palisade grass deferred with two distinct initial heights luminous environment and tillering dynamics |
| topic | Brachiaria brizantha deferred grazing ecophysiology tiller |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100006 |
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