Resistência de biótipos de arroz-vermelho aos herbicidas imazapyr + imazapic e alternativas de controle

Rubin, Rafael Salles; Agostinetto, Dirceu; Manica-Berto, Roberta; Fraga, D.S.; Tarouco, Camila Peligrinotti

doi:10.1590/0034-737x201461050009

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…Regarding the resistance of red rice seedlings, after receiving the application of the dose of 140g of the herbicide Imazapyr (Kifix®), when they were at the v3 stage, it was observed that all plants were resistant to application, regardless of the cultivation system used. This reflects the continued use of the same chemical control technology, without rotation of mechanisms of action, which causes them to be lost and the return to pre-germinated cultivation is the only viable way out (RUBIN et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

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Cultivation strategies in irrigated rice area for red rice control: Case study

Vicente,

Cunha,

Conceição

et al. 2023

Interdisciplinarity and Innovation in Scientific Research

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Red rice (Oriza sativa L.) It is the most important weed for rice cultivation, and can reduce productivity. With the advent of the Clearfield® system, it became possible to control it using herbicides, belonging to the chemical group of imidazolinones. However, several cases of red rice resistant to these herbicides have already been identified, intensifying the problem especially when rice is sown in dry soil. The objective of this work was to describe the potential of different cropping systems in rice areas to reduce the presence of red rice resistant to these herbicides, through a case study conducted in a field. The work was conducted in the municipality of Manoel Viana, located on the Western Border of Rio Grande do Sul, during the 2021/2022 agricultural year, using 3 treatments: minimum crop (CM) and pre-germinated (PG). This commercial crop had been implanted under the minimum tillage system for several years before the implementation of the treatments. The presence of susceptible and resistant red rice was evaluated in soil samples collected after the 2021/2022 harvest. The samples were then stratified at the following depths: 0.0-0.15m and 0.15-0.30m. At the same soil collection points, in each field, rice was harvested to estimate grain yield (kgha-1), grain mass and whole grain yield. A higher number of red rice seeds was observed in the area cultivated in the pre-germinated system, but only 7.95% of these seeds generated plants in the previous harvest. However, in minimum cultivation, 33.86% of the seeds generated plants. This result, combined with the higher average yield and percentage of whole grains, leads to the conclusion that the use of the pre-germinated system, in addition to reducing problems with red rice, can also improve the economic gain of the products.

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Section: Resultsmentioning

confidence: 99%

“…The use of herbicides for weed control has been one of the most widely used methods in irrigated rice crops. The use of chemical control combined with other control systems helps to reduce weed competition early in the crop cycle (Rubin et al, 2014).…”

Section: Chemical Controlmentioning

confidence: 99%

Cultivation strategies in irrigated rice area for red rice control: Case study

Vicente,

Cunha,

Conceição

et al. 2023

Interdisciplinarity and Innovation in Scientific Research

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“…This can be explained by the fact that a portion of farmers invest in soybean production rather than rice production due to the lower cost (Conceição et al, 2017;Júnior, 2019). In addition, weed infestations resistant to current methods of control (Rubin et al, 2014) and blast disease caused by the fungus Magnaporthe oryzae (Barr) Couch [anamorphic Pyricularia oryzae (Cav.)] (Prabhu et al, 2009) contribute to the difficulty of producers to remain in business.…”

Section: Introductionmentioning

confidence: 99%

Effect of selective micronutrients on productivity of upland rice varieties

Kaue¹,

Marcelo²,

Francismeire³

et al. 2022

Afr. J. Agric. Res.

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The realization of optimal recommendations for the nutrient balance of upland rice is an excellent strategy to increase the productivity and sustainability of the production system, especially in soils with limiting conditions for cultivation. The objective of the study was to evaluate the behavior of upland rice cultivars (ANa 9005CL, ANa 8001, AN Cambará and BRS A502), by foliar fertilization (Maxi Zinc ® , Booster ® and Broadacre ® ) in the first year under dryland conditions in Vilhena-RO. The experimental design adopted was a randomized block design (BCT), with four cultivars and two levels of micronutrients and four repetitions, in a 4 × 2 factorial scheme. The production components evaluated showed statistically non-significant means for the foliar fertilizer factor, except for the number of spikes per panicle, for which there was a significant difference with an 8% increase in the cultivar ANA 8001 in relation to the other cultivars evaluated. Although the cultivar BRS A502 had fewer spikelets per panicle, the number of panicles per m 2 compensated for this and ensured statistical equality in yield. The cultivar ANa 8001 produced the best results in terms of productivity and physical quality of the grains, under the edaphoclimatic conditions of the region.

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“…The arrival of the Clearfield ® technology in Brazil, in the early 2000s, allowed using herbicides from the imidazolinones chemical group (acetolactate synthase inhibitors -ALS) in the irrigated rice crop, thus becoming the main tool for controlling these weed species. However, the great selection pressure caused by continuously using these herbicides caused a rapid increase in the biotypes number of weedy rice (Rubim et al, 2014;Burgos et al, 2014;Dauer et al, 2018) and barnyardgrass (Eberhardt et al, 2016;Rouse et al, 2018) resistant to this herbicides group.…”

Section: Introductionmentioning

confidence: 99%

Aryloxyphenoxypropionate in association with others herbicides in controlling weedy rice and barnyardgrass

Guerra

Schmitt

Corrêa

et al. 2020

Agraria

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The development of aryloxyphenoxypropionate-tolerant rice cultivars made possible the selective use of these herbicides tank mixed with others. Thus, this research aimed to evaluate the applications of aryloxyphenoxypropionates associated with latifolicides for controlling weedy rice and barnyardgrass. In a greenhouse, the weedy rice and barnyardgrass control were evaluated with treatments composed of doses from the graminicides quizalofop-p-ethyl (0; 37.5; and 75 g ha-1) or haloxyfop-pmethyl (0; 45; and 60 g ha-1), either isolated or with addition of bentazon, saflufenacil, carfentrazone and with no herbicide. In the field, the effect from doses of quizalofop-p-ethyl (37.5 and 75 g ha-1) was tested, either isolated or associated with penoxsulam, bispiribac-sodium, quinclorac, propanil, bentazon, saflufenacil, carfentrazone and penoxsulam + bentazon for controlling weedy rice. When using a tank mix of herbicides from the aryloxyphenoxypropionates group with bentazon, saflufenacil or carfentrazone, there was a predominance of antagonistic interactions for weedy-rice, and additives interactions for barnyardgrass. In the field, the mixtures of quizalofop-p-methyl (75 g ha-1) with penoxsulam, bispiribac, quinclorac, propanil, bentazon, saflufenacil, carfentrazone or penoxsulam + bentazon resulted in excellent control of the weedy-rice.

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Resistência de biótipos de arroz-vermelho aos herbicidas imazapyr + imazapic e alternativas de controle

Cited by 6 publications

References 17 publications

Cultivation strategies in irrigated rice area for red rice control: Case study

Cultivation strategies in irrigated rice area for red rice control: Case study

Effect of selective micronutrients on productivity of upland rice varieties

Aryloxyphenoxypropionate in association with others herbicides in controlling weedy rice and barnyardgrass

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