000			02544nab a2200313 i 4500
003			BR-BrBNA
005			20230928145217.0
008			230928b2020 bl.ar|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aH60 _b0150
100			_aOliveira Neto, Antonio M.
100			_aGuerra, Naiara
100			_aCoffin, Maxwell
100			_aBurgos, Nilda R.
100			_aAndrade, Alexander de
100			_aNoldin, José A.
245			_aSensitivity of weedy rice populations to Quizalofop
500			_aPublicação on-line; 25 ref.; 1 table; 2 illus.; Summary (En)
520			_aABSTRACT Background: Rice lines displaying resistance to quizalofop-p-ethyl (quizalofop), an acetyl coenzyme A carboxylase (ACCase)-inhibiting herbicide, were developed to facilitate control of imidazolinone-resistant weedy rice (red rice), as well as other susceptible grasses. Objective: To assess the sensitivity of weedy rice accessions from Brazil to quizalofop. Methods: Two bioassays were conducted on the greenhouse from March to June 2016, in a completely random design with a two-factor factorial combination of treatments and four replications. The factor A was weedy rice accession and factor B was quizalofop rates (0, 25 and 50 g a.i. ha-1). It was assessed a total of 84 genotypes in the two bioassays, composed of 78 weedy rice accessions, 4 rice cultivars, and 2 lines resistant to aryloxyphenoxypropionate (AOPP) herbicides. Quizalofop was applied the 2-leaf stage. Weedy rice control was evaluated at 28 and 22 days after treatment (DAT), respectively for bioassay I and II, using a scale of 0% (no control) to 100% (dead). Results: All weedy rice accessions were susceptible to quizalofop, being controlled 100% with 50 g a.i. ha-1. Rice lines SC 964 and SC 965, resistant to AOPP herbicides, were not injured by quizalofop. Conclusions: quizalofop is an effective tool for weedy rice control in ACCase-resistant rice. Keywords: aryloxyphenoxypropionate ACCase inhibitor red rice Oryza sativa.
650			_aORYZA SATIVA
650			_aARROZ
650			_aARROZ VERMELHO
650			_aINIBIDOR DE ENZIMA
650			_aHERBICIDA
773	0		_0886 _91817 _dLondrina-PR : Sociedade Brasileira da Ciência das Plantas Daninhas, 1978 _o2023-031024 _tPlanta Daninha (Brazil) _x0100-8358; 1806-9681 (on-line) _gv. 38 p. 1-7; (2020) _wBR2023000867
856			_uhttps://www.scielo.br/j/pd/a/NdVJYsjdHpjgBPKx6WJTggs/?format=pdf&lang=en
942			_cAnalítica
999			_c86333 _d86333