Floristic and phytosociology of weeds in pastures in Maranhão State, Northeast Brazil

Costa, Jaílson Penha; Mesquita, Mário Luiz Ribeiro

doi:10.5935/1806-6690.20160050

Cited by 6 publications

(6 citation statements)

References 29 publications

(18 reference statements)

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“…Some species were found in these families (Cyperus rotundus, Cyperus sphacelatus, Senna obtusifolia, Eleusine indica, Eragrostis ciliaris and Ipomoea eriocarpa) indicating great plasticity with adaptability and stress tolerance imposed by weed management practices used by farmers (Costa and Mesquita, 2015;Le Bourgeois, 1993). In addition, the Cyperaceae family occupies an important place in Sefa where the most characteristic species of degraded lands are found.…”

Section: Discussionmentioning

confidence: 99%

Systematic composition, life forms and chorology of fallow lands in Eastern Senegal and Casamance, Senegal

Ka¹,

Mbaye²,

Guèye³

et al. 2018

Int. J. Bio. Chem. Sci

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Fallow plays an important role in weed flora management and soil fertility restoration. The aim of this study was to determine the structure of flora through systematic composition, life forms and chorology distribution. Thus, phytosociological surveys were carried out during 2015 and 2016 crop years on station in Eastern Senegal, Upper Casamance and Middle Casamance. The results revealed that flora consisted of 109 species distributed in 64 genera and 19 families. Dicotyledon was the most important form. Indeed, it represented 69% of the species, 69% of the genera and 79% of the families. This flora was more diverse in Kolda where it was composed of 91 species, distributed in 57 genera and 15 families. In Sefa, the flora contained 52 species, 38 genera and 11 families while in Sinthiou Maleme, the flora is rich of 43 species, 31 genera and 9 families. The overall analysis of the biological spectrum showed a large dominance of therophytes (78.9%) followed by phanerophytes (9.2%) and hemicryptophytes (6.4%). The biogeographical distribution of the species revealed that african species (49 species) were the most important and followed by pantropical species (29 species). The present study allowed pointing out the flora of fallow lands in Eastern Senegal and Casamance which is essential before elaboration of any management plan for improving crop production.

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Section: Discussionmentioning

confidence: 99%

Systematic composition, life forms and chorology of fallow lands in Eastern Senegal and Casamance, Senegal

Ka¹,

Mbaye²,

Guèye³

et al. 2018

Int. J. Bio. Chem. Sci

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“…The knowledge of floristic composition of weeds is important to understand weed interference and design strategies for weed management (COSTA and MESQUITA, 2016). The weed flora assessed in the whole study was represented by 813 individuals from 18 families and 55 species.…”

Section: Resultsmentioning

confidence: 99%

“…Information on weed species that occur in pastures on Southern Brazil is very limited in an ICLS (MORAES et al, 2014) and knowledge of floristic composition of weeds is a key factor for improving weed management (COSTA and MESQUITA, 2016).…”

Section: Introductionmentioning

confidence: 99%

Floristic and phytosociology of weed in response to winter pasture sward height at Integrated Crop-Livestock in Southern Brazil

Schuster

Martinichen

Pelissari

et al. 2016

Revista Brasileira De Tecnologia Aplicada Nas Ciências Agrárias

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The knowledge of weed floristic composition and phytosociology are key factors for their management. Informations about weed species that occur in pastures in Southern Brazil is very limited in an Integrated Crop-Livestock Systems (ICLS). It is, important, therefore, to search for information to help integrated weed control strategy. This paper describes the weed flora diversity and community structure due to modification on sward height in ICLS. The data survey was set within a 250 km radius around the Guarapuava's town, being selected 26 areas in order to embrace a sward height management with winter pasture compounded by black oat and mixed ryegrass. The weed flora was represented by 813 individuals, from 18 families and 55 species. The weed density in the winter pasture compounded by black oat and mixed ryegrass ICLS was of 29,5 plants m -2. The most important infesting specie based on a relative dominance was Stachys arvensis L. The high reduction of pasture management increase of weed density. These results could lead to an improved weed management in winter pasture in ICLS. Key words: Ecological filters; weed ecology; biological invasion; integrated weed management. Florística e fitossociologia das plantas daninhas em resposta a altura de manejo do pasto de inverno na Integração Lavoura-Pecuária no sul do Brasil ResumoO conhecimento da composição florística e da fitossociologia das plantas daninhas são fatores-chave para o manejo destas. Informações sobre as espécies de plantas daninhas que ocorrem em pastagens de inverno no Sul do Brasil ainda para os Sistemas Integração de Produção Agropecuária (SIPA). É, portanto, importante, a busca de informações para ajudar a planejar estratégias de manejo integrado de plantas daninhas. Este artigo descreve a flora, a diversidade e estrutura da comunidade de plantas daninhas em SIPA. O levantamento das plantas daninhas foi realizado dentro de um raio de 250 km em torno da cidade de Guarapuava, sendo selecionadas 26 áreas, a fim de abranger um gradiente de altura de manejo de pastagens, com pastagem de inverno composta por aveia preta e azevém em mistura. A flora de plantas daninhas foi representada por 813 indivíduos, de 18 famílias e 55 espécies. A densidade das plantas daninhas nas pastagens de inverno no SIPA foi de 29,5 plantas m -2 . A espécie infestante mais importante com base na dominância relativa foi Stachys arvensis L. A redução da altura de manejo da pastagem ocasionou o aumento da densidade de plantas daninhas. Os resultados permitem melhor entendimento para o manejo das plantas invasoras nas pastagens de inverno no SIPA. Palavras chave: Filtros ecológicos, ecologia de plantas daninhas, invasão biologia, manejo integrado de plantas daninhas.Applied Research & Agrotechnology v9 n3 aug/dec. (2016) 20 Print-ISSN 1983-6325 (On line) e-ISSN 1984 Lustosa et al.(2016)Florística y fitosociología de malezas en respuesta a altura de manejo del pasto de invierno en la integración Agricultura-Ganaderia en el Sur de Brasil ResumenEl conocimiento de la co...

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“…In terms of balance, another aspect that can indicate a low pasture quality in this experimental field is a clear preponderance of species from the Poaceae (Gramineae) family, usually with low nutritional value for animal grazing [19]: in average, these covered approximately 22% of OTC area and approximately 40% of UTC area. According to Costa and Mesquita [47] the major feature of the dominance of this family in many degraded pastures is related to the way most of their species grow with dense clumps or the presence of rhizomatous and stoloniferous individuals widely scattered in the weed community.…”

Section: Pasture Floristic Composition Utc and Otc: Biodiversity And ...mentioning

confidence: 99%

Floristic Composition: Dynamic Biodiversity Indicator of Tree Canopy Effect on Dryland and Improved Mediterranean Pastures

et al. 2021

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Montado is a characteristic ecosystem of the Mediterranean region. The adequate management of this silvo-pastoral ecosystem requires good understanding of the effect of factors such as tree canopy, fertilization and soil amendment on pasture growth. The main objectives of this work were: (1) to evaluate the effect of tree canopy on soil characteristics and pasture productivity and quality; and (2) to test floristic composition assessment as a bio-indicator of soil improvements (amendment and fertilization) in each study area (under and outside tree canopy). Topsoil was characterized at the beginning of the project (October 2015) and at the end of the experiments (spring 2020). Soil parameters obtained by electronic sensors (soil moisture content, soil cone index and surface temperature) were monitored monthly during the 2017/2018 pasture vegetative cycle. Pasture productivity, quality and floristic composition were evaluated every two years (2016, 2018 and 2020) in the spring flowering period. The results of the floristic inventory were submitted to a multilevel pattern analysis (Indicator Species Analysis, ISA). Pasture biodiversity was evaluated based on the calculation of richness indices. This study showed a positive effect of tree canopy on soil fertility and pasture quality (e.g., CP). Pasture productivity, on the other hand, was higher in areas outside tree canopy. The great potential of ISA as a tool for identification of bio-indicator species was also demonstrated. Pasture species were identified as ecological and dynamic attributes characteristic of each study area, before and after soil amendment and fertilization.

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Floristic and phytosociology of weeds in pastures in Maranhão State, Northeast Brazil

Cited by 6 publications

References 29 publications

Systematic composition, life forms and chorology of fallow lands in Eastern Senegal and Casamance, Senegal

Systematic composition, life forms and chorology of fallow lands in Eastern Senegal and Casamance, Senegal

Floristic and phytosociology of weed in response to winter pasture sward height at Integrated Crop-Livestock in Southern Brazil

Floristic Composition: Dynamic Biodiversity Indicator of Tree Canopy Effect on Dryland and Improved Mediterranean Pastures

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