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| Viero,João Luis Carricio; Schaedler,Carlos Eduardo; Azevedo,Eduardo Bohrer de; Santos,João Vitor Ail dos; Scalcon,Ricardo de Mello; David,Diego Bitencourt de; Rosa,Fabiane Quevedo da. |
| ABSTRACT: The objective of this study was to evaluate endozoochory dispersal, recuperation, and germination of weedy rice (Oryza sativa L.) and barnyardgrass (Echinochloa crus-galli L.) seeds passed through the digestive system of cattle. The experiment was divided into two phases: first, the daily seed recuperation rate was determined after passing through the digestive system of six steers. Each animal was dosed individually with 1000 weedy rice seeds and 13,818 barnyardgrass seeds, and these seeds were subsequently collected from feces. In the second phase, seed germination and emergence rate after passing or not passing through the digestive system of cattle were determined in two types of substrates (fecal plaque and soil) in a 2×2 factorial design.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endozoochory; Feces; Paddy rice; Seed ingestion; Ruminants.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000800201 |
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| Schaedler,C.E.; Noldin,J.A.; Agostinetto,D.; Dal Magro,T.; Fontana,L.C.. |
| Weed biotypes resistant and susceptible to herbicides may have differences in their adaptive values. The aims of this study were to compare, under controlled and non-competitive condition, the growth analysis, germination features and seed weight of Fimbristylis miliacea (FIMMI) biotypes resistant and susceptible to acetolactate synthase (ALS) inhibiting herbicides. Experiments were conducted in a greenhouse and in a laboratory from October 2008 to February 2010. Two resistant biotypes (FIMMI 10 and FIMMI 12) and one susceptible biotype (FIMMI 13) were used for the studies. For the study on growth analysis, the treatments were arranged in a completely randomized experimental design with four replications and sampled at 21, 28, 35, 42, 49, 56, 69 days after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Paddy rice; Globe fringerush; Oryza sativa; Herbicide resistance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000300020 |
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| EBERHARDT,D.S.; OLIVEIRA NETO,A.M.; NOLDIN,J.A.; VANTI,R.M.. |
| ABSTRACT The objective of this research was to confirm the resistance of a barnyardgrass biotype (Echinochloa crus-galli) to herbicides quinclorac (synthetic auxin), penoxsulam (ALS inhibitor) and cyhalofop-butyl (ACCase inhibitor). Two experiments were carried out in a greenhouse located in Itajaí, State of Santa Catarina, Brazil. One experiment evaluating the biotype ECH 18 (known as susceptible) and one with the ECH 141 biotype (suspected to be multiple resistant). The experimental design used was completely randomized, in a 4 x 7 factorial arrangement with four replications. The first factor was the herbicide: cyhalofop-butyl (Clincher(r)), penoxsulam (Ricer(r)), quinclorac (Facet(r)) and propanil (Grassaid(r)) and the second factor consisting of seven... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Paddy rice; Echinochloa crus-galli; Chemical control; Herbicide resistance. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400823 |
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