Grain sorghum response to saflufenacil applied preemergence

Keeling, J. Wayne; Brown, Brent A.; Reed, Jacob D.; Dotray, Peter A.

doi:10.1016/j.cropro.2012.11.007

Cited by 11 publications

(8 citation statements)

References 12 publications

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“…Isoxaflutole at both rates displayed good efficacy (>90%) on some large-seeded broadleaf weeds, such as X. strumarium and A. theophrasti , which was consistent with previous findings 26 , 27 . PRE herbicides such as S-metolachlor and alachlor provide high efficacy against a large number of small-seeded weeds but offer only limited control of large-seeded broadleaf weeds 28 . The capability of controlling some large-seeded broadleaf weeds may make isoxaflutole a better choice than other common PRE herbicides for weed control in corn in China.…”

Section: Resultsmentioning

confidence: 99%

Greenhouse and field evaluation of isoxaflutole for weed control in maize in China

Zhao

Zuo

Wei

et al. 2017

Sci Rep

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Greenhouse and field studies were conducted to provide a reference for pre-emergence (PRE) application of isoxaflutole on maize in China. In greenhouse study, the isoxaflutole PRE application at 30 g active ingredient (a.i.) ha−1 could effectively control large numbers of weeds, especially some large-seeded broadleaves, tested in this study. The tolerance results indicated 21 maize hybrids showed different responses to isoxaflutole under greenhouse conditions. In 2015 and 2016, field experiments were conducted to determine and compare the weed control efficacy and safety to Zhengdan 958 maize with 6 herbicide treatments. In both years, isoxaflutole PRE at 100 to 250 g a.i. ha−1 was sufficient to provide satisfactory full-season control of the dominant common broadleaf and grass weeds in the field. Temporary injury to maize was observed with isoxaflutole treatments of 125, 150, and 250 g a.i. ha−1 in both years, but plants recovered within 4 to 6 wk. To maximize maize yield and provide satisfactory weed control, a range of 100 to 150 g a.i. ha−1 of isoxaflutole is recommended, depending on the soil characteristics, weather, and weed species present at the experimental site. Based on the results, isoxaflutole PRE has good potential for weed control in maize in China.

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Section: Resultsmentioning

confidence: 99%

Greenhouse and field evaluation of isoxaflutole for weed control in maize in China

Zhao

Zuo

Wei

et al. 2017

Sci Rep

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“…The difference in sensitivity of sorghum hybrids to saflufenacil was also reported by Keeling et al (2013), in which hybrid Pioneer 85G01 was more sensitive than Dekalb 44-20. Miller et al (2012) have reported that soybean cultivar OAC Hanover was more sensitive to saflufenacil compared to the other 11 cultivars tested.…”

Section: Resultsmentioning

confidence: 67%

“…Thus, the texture and content of organic matter in the soil, besides rainfall or irrigation after application, directly interfere with the bioactivity of saflufenacil in the soil (Keeling et al, 2013). In the US, saflufenacil was recorded for sorghum grain at dosages up to 45 g ha , applied in preemergence, has caused no visible damage to potato plants or tubers decreased yield (Boydston et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Selectivity of Saflufenacil for Sweet Sorghum and Potential use of Na-Bentazon as a Safener

Correia

Gomes

2015

Planta daninha

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-The objective of this study was to assess the selectivity herbicide saflufenacil for two sweet sorghum hybrids, when sprayed in preemergence and postemergence, besides the use of Na-bentazon as a 'safener' for saflufenacil. Three experiments were conducted, in pots, maintained in an ambient condition (second and third experiments) and in a greenhouse (first experiment). In each experiment a completely randomized distribution was used, with four replicates. In the first (2 x 6 factorial) two hybrids of sweet sorghum (CVSW 80007 and CVSW 80147) and six dosages (0; 35; 52.5; 70; 87.5 and 105 g ha ) of saflufenacil were studied, applied in preemergence of the plants. In the second (2 x 5 factorial) the same hybrids of sweet sorghum sprayed in postemergence with saflufenacil (0; 35; 52.5; 70 and 87.5 g h -1 ) were assessed. In the third (4 x 5 factorial) the association of Na-bentazon (0; 240; 480 and 720 g ha ) was studied, when sprayed in postemergence on the sweet sorghum plants (CVSW 80007). Hybrid CVSW 80147 was more tolerant to saflufenacil than hybrid CVSW 800007, in preemergence or postemergence applications. The variables that best assessed the sensibility of the sweet sorghum to saflufenacil were number of emerged plants, for preemergence applications, and dry matter of stem for postemergence. Na-bentazon showed promise for use as 'safener' in postemergence applications of saflufenacil in sweet sorghum for dosages up to 70 g ha 0; 35; 52,5; 70; 87,5; e 105 g ha -1 ) de saflufenacil, aplicado em pré-emergência das plantas. No segundo (fatorial 2 x 5), foram estudados os mesmos híbridos de sorgo sacarino pulverizados em pós-emergência com saflufenacil (0; 35; 52,5; 70; e 87,5 g ha -1 ). No terceiro (fatorial 4 x 5), foi avaliada a associação do 240, ) ao saflufenacil (0; 35; 52,5; 70; e 87,5 g ha -1 ), quando pulverizados em pós-emergência das plantas de sorgo sacarino (CVSW 80007 . RESUMO -Objetivou-se estudar a seletividade do herbicida saflufenacil para dois híbridos de sorgo sacarino, quando pulverizado em pré e pós-emergência, além do uso de Na-bentazon como safener para saflufenacil. Três experimentos foram desenvolvidos, em vasos, mantidos em condição ambiente (segundo e terceiro experimento) e no interior de casa de vegetação (primeiro experimento). Em cada experimento, o delineamento experimental foi o inteiramente casualizado com quatro repetições. No primeiro (fatorial 2 x 6), foram avaliados dois híbridos de sorgo sacarino (CVSW 80007 e CVSW 80147) e seis dosagens (

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“…Though residues of this herbicide treatment have some potential to injure a select few crop species the following year (Robinson and McNaughton 2012), it has a relatively short half-life of 1 to 36 d (Shaner 2014), so it is not expected to pose as high a risk of carryover as the other herbicide treatments in this study. Furthermore, wheat (Knezevic et al 2010) and sorghum (Keeling et al 2013) have been shown to possess a high degree of tolerance to saflufenacil. Understanding the response of different cover crops to residual herbicides will assist growers' selection of cover crops.…”

Section: Sorghum Sudangrass Response To Herbicide Residuesmentioning

confidence: 99%

Response of four spring-seeded cover crops to residues of selected herbicides

YuLi¹,

EerdLaura

O’Halloran

et al. 2015

Can. J. Plant Sci.

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. 2015. Response of four spring-seeded cover crops to residues of selected herbicides. Can. J. Plant Sci. 95: 303Á313. Although herbicide labels provide crop rotation restrictions, information is limited on the influence of herbicide residues on cover crops. Field experiments were conducted in 2011/2012 and 2012/2013 in Ontario, Canada, to characterize the effects of soil residues of selected herbicides on establishment and growth of buckwheat (Fagopyrum esculentum Moench), annual ryegrass (Lolium multiflorum Lam.), sorghum sudangrass [Sorghum bicolor (L.) Moench )Sorghum sudanense (P.) Stapf], and spring wheat (Triticum aestivum L.) spring-seeded cover crops planted 1 yr after application. Imazethapyr (100 and 200 g ha ) was applied pre-emergence (PRE) to processing peas (Pisum sativum L.), while S-metolachlor/atrazine plus mesotrione (2880'140 and 5760'280 g ha (1 ) and saflufenacil/ dimethenamid-P (735 and 1470 g ha(1 ) were applied PRE to sweet corn (Zea mays L.). Imazethapyr residues from 200 g ha(1 caused 75 and 48% visible injury in buckwheat and sorghum sudangrass, respectively. Plant light attenuation, shoot dry weight, and nitrate-nitrogen content were reduced up to 82, 64 and 67% in buckwheat, and 40, 11 and 24% in sorghum sudangrass, respectively, by residues from imazethapyr. S-metolachlor/atrazine plus mesotrione residues caused up to 53% visible injury to annual ryegrass and reduced plant light attenuation, shoot dry weight, and nitrate-nitrogen content by as much as 59, 48, and 55%, respectively. There were no observable adverse effects of visible injury, light attenuation, shoot dry weight, and nitrate-nitrogen content on spring wheat regardless of herbicide or rate. These results indicate that buckwheat and sorghum sudangrass should not be grown in the year following imazethapyr, and that annual ryegrass should not be grown in the year after application of S-metolachlor/atrazine plus mesotrione. However, no restrictions are needed for growing spring wheat following these herbicides. 0, 11 et 24 % chez le sorgho. Les re´sidus de S-metolachlor/atrazine et de mesotrione engendrent jusqu'a`53 % de dommages visibles chez le ray-grass annuel et diminuent l'atte´nuation de la lumie`re, le poids sec des pousses et la teneur en azote-nitrate de jusqu'a`59, 48 et 55 %, respectivement. L'herbicide et son taux d'application n'ont aucun effet ne´faste apparent au niveau des dommages visibles, de l'atte´nuation de la lumie`re, du poids sec des pousses et de la teneur en azote-nitrate pour le ble´de printemps. Ces re´sultats indiquent qu'on ne devrait pas cultiver du sarrasin ni du sorgho l'anne´e suivant l'application d'imazethapyr et qu'on ne devrait pas semer du ray-grass annuel l'anne´e suivant l'application de S-metolachlor/atrazine et de mesotrione. Toutefois, aucune restriction ne s'applique au ble´de printemps apre`s l'utilisation de ces herbicides.Mots clé s: Cultures-abris, re´sidus d'herbicide, absorption de l'azote, atte´nuation de la lumie`re Crop rotation is one of the major factors conside...

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Grain sorghum response to saflufenacil applied preemergence

Cited by 11 publications

References 12 publications

Greenhouse and field evaluation of isoxaflutole for weed control in maize in China

Greenhouse and field evaluation of isoxaflutole for weed control in maize in China

Selectivity of Saflufenacil for Sweet Sorghum and Potential use of Na-Bentazon as a Safener

Response of four spring-seeded cover crops to residues of selected herbicides

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