Interference of weeds in ruziziensis grass pastures

Interference of weeds in ruziziensis grass pastures

ABSTRACT. The aim of this study was to assess the effect of increasing periods of coexistence of weed plants with Urochloa ruziziensis on the canopy structure and productivity of a pasture already established with this forage species. The experiment was a randomized blocks design with four replications, and treatments consisted of seven increasing periods of coexistence of forage grass with weed plants: 0 (control), 15, 30, 45, 60, 75 and 90 days after regrowth (DAR). The main morpho-structural and productive characteristics of the forage plants were determined at the end of the experimental period (90 DAR). The ratio of the first green leaf height to the tiller height increases, while the leaf to stem ratio diminishes as the period of interaction with the infesting community increases. The number of green leaves per tiller and the tiller height diminishes as the period of coexistence with weed plants increases. The presence of weed plants interferes negatively with all parameters of the grass canopy structure and productivity of a grazing land already established with Urochloa ruziziensis, suggesting that measures of control of the infesting community should be adopted up to 17 days of regrowth of the forage plant.

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Auteurs principaux: Pinheiro,Guilherme Henrique Rodrigues, Araújo,Prissila Pereira dos Santos e, Marques,Ricardo Fagundes, Souza,Rodrigo Marques de, Silva,Ilgner Thiago Duarte, Marchi,Sidnei Roberto de
Format: Digital revista
Langue:English
Publié: Editora da Universidade Estadual de Maringá - EDUEM 2022
Accès en ligne:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86722022000100205
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spelling oai:scielo:S1807-867220220001002052022-06-02Interference of weeds in ruziziensis grass pasturesPinheiro,Guilherme Henrique RodriguesAraújo,Prissila Pereira dos Santos eMarques,Ricardo FagundesSouza,Rodrigo Marques deSilva,Ilgner Thiago DuarteMarchi,Sidnei Roberto de Urochloa ruziziensis weed competition productivity leaf to stem ratio morphogenic structure ABSTRACT. The aim of this study was to assess the effect of increasing periods of coexistence of weed plants with Urochloa ruziziensis on the canopy structure and productivity of a pasture already established with this forage species. The experiment was a randomized blocks design with four replications, and treatments consisted of seven increasing periods of coexistence of forage grass with weed plants: 0 (control), 15, 30, 45, 60, 75 and 90 days after regrowth (DAR). The main morpho-structural and productive characteristics of the forage plants were determined at the end of the experimental period (90 DAR). The ratio of the first green leaf height to the tiller height increases, while the leaf to stem ratio diminishes as the period of interaction with the infesting community increases. The number of green leaves per tiller and the tiller height diminishes as the period of coexistence with weed plants increases. The presence of weed plants interferes negatively with all parameters of the grass canopy structure and productivity of a grazing land already established with Urochloa ruziziensis, suggesting that measures of control of the infesting community should be adopted up to 17 days of regrowth of the forage plant.info:eu-repo/semantics/openAccessEditora da Universidade Estadual de Maringá - EDUEMActa Scientiarum. Animal Sciences v.44 20222022-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86722022000100205en10.4025/actascianimsci.v44i1.54135
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country Brasil
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language English
format Digital
author Pinheiro,Guilherme Henrique Rodrigues
Araújo,Prissila Pereira dos Santos e
Marques,Ricardo Fagundes
Souza,Rodrigo Marques de
Silva,Ilgner Thiago Duarte
Marchi,Sidnei Roberto de
spellingShingle Pinheiro,Guilherme Henrique Rodrigues
Araújo,Prissila Pereira dos Santos e
Marques,Ricardo Fagundes
Souza,Rodrigo Marques de
Silva,Ilgner Thiago Duarte
Marchi,Sidnei Roberto de
Interference of weeds in ruziziensis grass pastures
author_facet Pinheiro,Guilherme Henrique Rodrigues
Araújo,Prissila Pereira dos Santos e
Marques,Ricardo Fagundes
Souza,Rodrigo Marques de
Silva,Ilgner Thiago Duarte
Marchi,Sidnei Roberto de
author_sort Pinheiro,Guilherme Henrique Rodrigues
title Interference of weeds in ruziziensis grass pastures
title_short Interference of weeds in ruziziensis grass pastures
title_full Interference of weeds in ruziziensis grass pastures
title_fullStr Interference of weeds in ruziziensis grass pastures
title_full_unstemmed Interference of weeds in ruziziensis grass pastures
title_sort interference of weeds in ruziziensis grass pastures
description ABSTRACT. The aim of this study was to assess the effect of increasing periods of coexistence of weed plants with Urochloa ruziziensis on the canopy structure and productivity of a pasture already established with this forage species. The experiment was a randomized blocks design with four replications, and treatments consisted of seven increasing periods of coexistence of forage grass with weed plants: 0 (control), 15, 30, 45, 60, 75 and 90 days after regrowth (DAR). The main morpho-structural and productive characteristics of the forage plants were determined at the end of the experimental period (90 DAR). The ratio of the first green leaf height to the tiller height increases, while the leaf to stem ratio diminishes as the period of interaction with the infesting community increases. The number of green leaves per tiller and the tiller height diminishes as the period of coexistence with weed plants increases. The presence of weed plants interferes negatively with all parameters of the grass canopy structure and productivity of a grazing land already established with Urochloa ruziziensis, suggesting that measures of control of the infesting community should be adopted up to 17 days of regrowth of the forage plant.
publisher Editora da Universidade Estadual de Maringá - EDUEM
publishDate 2022
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86722022000100205
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