Weed Seed Bank in an Agroforestry System With Eucalyptus in Subtropical Brazil

Deiss, Leonardo; Moraes, Aníbal de; Pelissari, Allan Libanio; Porfirio-Da-Silva, V.; Schuster, Maurício Zanovello

doi:10.1590/s0100-83582018360100022

Cited by 8 publications

(8 citation statements)

References 37 publications

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“…Piaia et al (2017) recorded the predominance of pioneer herbaceous species with greater representation of the Poaceae, Asteraceae and Solanaceae families in soil seed bank fragments from seasonal forests and stabilized gullet. Similar results were reported byDeiss et al (2018) regarding the Eucalyptus dunnii Maiden plantation.The species F.dichotoma, C. hirta, C. prostrata, C. mucunoides C. aestuans and H. communis were observed in all the SSB's evaluated environments, showing their great plasticity, that is,…”

supporting

confidence: 89%

Assessment of the Soil Seed Bank Aiming at Transposition to Forest Regeneration in the Western Amazonia

Araújo

Alves

Melo

et al. 2022

JAS

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This study evaluated the soil seed bank’s germination potential and density in five distinct environmental areas namely: a) regenerated forest, b) secondary forest, c) degraded pasture, d) Eucalyptus sp. plantation and e) fallow corn growing area, with a view to regenerate forests in Western Amazonia using tray germination methodology. We assessed floristic similarity and diversity using the Jaccard Similarity Index and the Shannon Diversity Index, respectively. We computed each species’ phytosociological parameters: density, frequency and importance value of each species. We recorded a total 3674 individuals from 51 species and 21 families. The families with the highest species richness were Asteraceae, Malvaceae, Cyperaceae and Poaceae that contributed to 43% of the total species observed. The most important species computed in the phytosociological analysis were Chamaesyce hirta, Corchorus aestuans, Cyperus iria and Chamaesyce prostrata. All species had a herbaceous life form, which in the literature, are considered weeds. We documented the largest number of individuals in the fallow corn growing area that had 3620 plants m-2 and the smallest number in the regenerated forest that had 183 plants m-2. We observed the greatest floristic similarity between the secondary forest and Eucalyptus sp. plantation (40%), and the greatest floristic diversity in the Eucalyptus sp. plantation (H '= 2.59 nats individual-1). In conclusion, the transposition of the soil seed bank is not recommended for forest regeneration and recovery in degraded areas due to massive weed predominance in the soil seed bank.

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supporting

confidence: 89%

Assessment of the Soil Seed Bank Aiming at Transposition to Forest Regeneration in the Western Amazonia

Araújo

Alves

Melo

et al. 2022

JAS

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“…The diversity and evenness of the seed bank was 1.485 and 0.42, respectively. These values were different from those obtained by Jakelaitis et al (2014), Mesquita et al (2016), Cardoso et al (2016) and Ferreira (2017), as well as the structural parameters also differed from those found in the consulted studies (Diniz et al, 2017;Ferreira, 2017;Corrêa et al, 2018;Carmona, 1995;Deiss et al, 2018;Mesquita et al, 2016).…”

Section: Discussioncontrasting

confidence: 64%

“…The families Poaceae, Asteraceae and Amaranthaceae were also quite representative in other studies, such as those developed by Ferreira (2017), Deiss et al (2018) and Diniz et al (2017). Many species of these families exhibit characteristics which favor these results, such as the production of large quantities of seeds and the dispersion in different environments (Lorenzi, 2006;Holm et al, 1977;And Pedrotti Guarim-Neto, 1998).…”

Section: Discussionmentioning

confidence: 55%

“…); in Morrinhos, GO, 26 species (Ferreira, 2017); in Viana, MA, 12 (Corrêa et al, 2018) and in São Luís, MA, 13 (Silva et al, 2018). However, other studies showed a higher number: in Vargem Bonita, DF, there were 39 species (Carmona, 1995); in Ponta Grossa, PR, 49 species (Deiss et al, 2018) and; in São Luís Gonzaga, MA, 55 (Mesquita et al, 2016). Differences in the sampling effort, between the biome / ecosystem studied and in the methods of collecting soils and data, should explain the divergences between the results of the compared studies.…”

Section: Discussionmentioning

confidence: 85%

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Bovine manure as a dispersing agent for weeds and invasive alien plants

Mendonça

Reis

Gomes

et al. 2021

RSD

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Fertilization is the act of adding fertilizers to the soil in order to provide essential nutrients for the development of cultivated plants. However, the use of bovine manure can act as a source of weed propagules, including non-native species. Due to the importance and lack of research on the topic, the objective of the present study was to evaluate the seed bank present in bovine manure used by farmers in the municipality of Itabaiana, SE. For that, samples of bovine manure were collected in 10 rural properties in the municipality of Itabaiana, SE. The evaluation of the seed bank was carried out by accounting for emerged seedlings. Usual phytosociological indices were calculated for each species. Altogether 35 species were sampled, of which 28 native and seven non-native. The native species with the highest importance value was Euphorbia hirta, as it has the highest density (AD = 1122 ind.m-²) and is present in 28 sample units. The non-native species with the highest importance value was Eleusine indica, because it has the third highest density (AD = 171.2 m²) and is present in 21 sample units. The obtained results reveal that bovine manure has a high number of weed, which is quite worrying, as they are species that generate important environmental and economic impacts.

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“…Phytosociological indices are important for an analysis of the impact of soil management systems and agricultural practices on the dynamics of growth and occupation of weed communities in agroecosystems (Pitelli, 2000;Kuva et al, 2007;Deiss et al, 2017). They are also useful tools to shed light on the dynamics of weed species and their interactions in arable fields (Concenço et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Panicum maximum cv. Aries Establishment under Weed Interference with Levels of Light Interception and Nitrogen Fertilization

et al. 2019

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The aim of this study was to evaluate the establishment of the pasture of Panicum maximum cv. Aries in an environmentally protected area under levels of interspecific interaction with the weed community. The experiment started after sowing P. maximum, and it was carried out in a randomized block design with four replications and the following factors: 3 light interception levels, 2 nitrogen rates, and 7 weekly sampling dates along pasture establishment (3x2x7). The light interception treatments, determined by photosynthetically active radiation, were given by mowing weeds over the canopy of P. maximum at 40% and 70% light interception, and no mowing (uncontrolled growth of weeds and P. maximum). Topdressing application of nitrogen in the form of urea was performed or not (0 or 200 kg N ha-1). The plant community was evaluated by number of species, dry matter accumulation, and density, and phytosociological indices were determined. The relative importance and dry matter accumulation of P. maximum were greater after nitrogen fertilization, which favored the species against weed competition. In contrast, there was lower weed density without nitrogen fertilization. Mowing weeds at 40% of light interception enabled P. maximum to accumulate more dry matter, while there was no difference between mowing weeds at 70% light interception and growing the forage crop freely with weeds. Reducing weed light interception as well as nitrogen fertilization, and consequently reducing the competitive ability of the weed, favored the establishment of P. maximum in diversified agro-ecosystems.

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Weed Seed Bank in an Agroforestry System With Eucalyptus in Subtropical Brazil

Cited by 8 publications

References 37 publications

Assessment of the Soil Seed Bank Aiming at Transposition to Forest Regeneration in the Western Amazonia

Assessment of the Soil Seed Bank Aiming at Transposition to Forest Regeneration in the Western Amazonia

Bovine manure as a dispersing agent for weeds and invasive alien plants

Panicum maximum cv. Aries Establishment under Weed Interference with Levels of Light Interception and Nitrogen Fertilization

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