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| OSIPE,J.B.; OLIVEIRA JR.,R.S.; CONSTANTIN,J.; TAKANO,H.K.; BIFFE,D.F.. |
| ABSTRACT The possibility of using auxin mimics herbicides in culture postemergence applications contributes to weed management. This study aimed at evaluating and comparing the effectiveness of 2,4-D and dicamba herbicides on glyphosate resistant or tolerant weeds. The treatments were dicamba and 2,4-D doses with or without glyphosate. The evaluated weeds in the experiment were Richardia brasiliensis, Commelina benghalensis, Conyza sp. and Ipomoea nil. Herbicides were applied when weeds were in 4 to 6 and 10 to 12 leaves stages. Data referring to evaluations on day 30 after application were submitted to analysis of variance. Response-dose curves were obtained for herbicides, and C85 and C95 values were identified. Weed species showed different tolerance to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mimics auxin; Weeds; Richardia brasiliensis; Commelina benghalensis; Conyza bonariensis; Ipomoea nil. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100251 |
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| Galon,L; Ferreira,E.A; Aspiazú,I; Concenço,G; Silva,A.F; Silva,A.A; Vargas,L. |
| The objective of this study was to evaluate glyphosate translocation in glyphosate-tolerant weed species (I. nil, T. procumbens and S. latifolia) compared to glyphosate-susceptible species (B. pilosa). The evaluations of 14C-glyphosate absorption and translocation were performed at 6, 12, 36 and 72 hours after treatment (HAT) in I. nil and B. pilosa, and only at 72 HAT in the species T. procumbens and S. latifolia. The plants were collected and fractionated into application leaf, other leaves, stems, and roots. In S. latifolia, approximately 88% of the glyphosate remained in the application leaf and a small amount was translocated to roots at 72 HAT. However, 75% of the herbicide applied on T. procumbens remained in the leaf that had received the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea nil; Tridax procumbens; Spermacoce latifolia; Bidens pilosa. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000100021 |
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| BARROSO,A.A.M.; FERREIRA,P.S.H.; MARTINS,D.. |
| ABSTRACT: Weeds reduce the productive potential of crops. Plants of the Ipomoea genus, besides competing for water, light, space and nutrients, create problems in crop harvests due to their volatile stems. The objective of this work was to evaluate the growth and development of five Ipomoea species. For such, Ipomoea grandifolia, Ipomoea hederifolia, Ipomoea nil, Ipomoea purpurea and Ipomoea quamoclit plants were analyzed during the summer and winter season. Five destructive and periodic growth evaluations were carried out for each study, where leaf number, leaves, stems, roots and the total biomass were analyzed. Phenological stages of the plant development were also evaluated for emergence, flowering and maturation sub-periods by degree-days, totalizing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morning glory species; Ipomoea grandifolia; Ipomoea hederifolia; Ipomoea nil; Ipomoea purpurea; I. quamoclit. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100233 |
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