2017
DOI: 10.1590/s0100-204x2017001100004
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Morphophysiogenetic characterization of wild poinsettia biotypes with low resistance to glyphosate

Abstract: -The objective of this work was to compare wild poinsettia (Euphorbia heterophylla) biotypes as to their morphological characteristics, as well as to determine their genetic similarity in the state of Rio Grande do Sul, Brazil, and to confront the light compensation point of susceptible biotypes and of biotypes with low-resistance level to glyphosate. Besides the morphology analysis, the study included the genetic characterization, by AFLP, of susceptible (GR 50 = 58.65 g ha -1 a.e.) biotypes and of biotypes w… Show more

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Cited by 3 publications
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“…In this context, the wild poinsettia (Euphorbia heterophylla), a species widely found in crops, stands out as one of the weeds with the highest potential for damage, especially for its high competitive ability, high capacity for shading and seed production, and due to its multiple resistance mechanisms, which make it difficult to control using acetolactate synthase-ALS, protoporphyrinogen oxidase-PROTOX and 5 enolpyruvylshikimate-3phosphate synthase-EPSPs-inhibiting herbicides (TREZZI et al, 2006;VARGAS et al, 2013;WANDSCHEER;REICHERT, 2013;AGOSTINETTO et al, 2017;HEAP, 2020). The herbicides with the aforementioned mechanisms of action are the ones used most in maize for the control of wild poinsettia and other species.…”
Section: Introductionmentioning
confidence: 99%
“…In this context, the wild poinsettia (Euphorbia heterophylla), a species widely found in crops, stands out as one of the weeds with the highest potential for damage, especially for its high competitive ability, high capacity for shading and seed production, and due to its multiple resistance mechanisms, which make it difficult to control using acetolactate synthase-ALS, protoporphyrinogen oxidase-PROTOX and 5 enolpyruvylshikimate-3phosphate synthase-EPSPs-inhibiting herbicides (TREZZI et al, 2006;VARGAS et al, 2013;WANDSCHEER;REICHERT, 2013;AGOSTINETTO et al, 2017;HEAP, 2020). The herbicides with the aforementioned mechanisms of action are the ones used most in maize for the control of wild poinsettia and other species.…”
Section: Introductionmentioning
confidence: 99%