Rice (Oryza sativa) Cultivar Tolerance to Clomazone in Water-Seeded Production<sup>1</sup>

Mudge, Christopher R.; Webster, Eric P.; Leon, Chris T.; Zhang, Wei

doi:10.1614/wt-04-280r2.1

Cited by 13 publications

(16 citation statements)

References 16 publications

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“…The phytotoxicity symptoms of clomazone applied PRE decreased with time and no injury was found on plants at harvest, similarly to the results reported in other studies under flood irrigation (Webster et al, 1999;Scherder et al, 2004;Zhang et al, 2004Zhang et al, , 2005Mudge et al, 2005a) and in upland rice (Esqueda, 2000). However, some reports indicate that at high rates (> 0.8 kg ha -1 ) rice yield can be reduced (Bollich et al, 2000;Mudge et al, 2005a).…”

Section: Rice Tolerancesupporting

confidence: 87%

“…However, some reports indicate that at high rates (> 0.8 kg ha -1 ) rice yield can be reduced (Bollich et al, 2000;Mudge et al, 2005a). The moderate visual injury found under sprinkler irrigation agrees with the results of Jordan et al (1998a) who observed lower rice injury when clomazone was applied in dry seeded rice compared to rice seeded after flooding.…”

Section: Rice Tolerancesupporting

confidence: 86%

“…Clomazone (2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone), oxadiazon (3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2-(3H)-one) and molinate (S-ethyl hexahydro-1H-azepine-1-carbothioate) are soil residual herbicides registered for use in preemergence (PRE) of rice. Clomazone applied PRE or in postemergence (POST) in flood irrigated rice provides good weed control of annual grasses (Jordan et al, 1998a;Webster et al, 1999;Scherder et al, 2004;Zhang et al, 2004Zhang et al, , 2005Talbert and Burgos, 2007), but phytotoxicity symptoms on rice plants are variable depending on cultivar and rice planting system (Zhang et al, 2004;Mudge et al, 2005a). Esqueda (2000) reported good control of grasses with clomazone in upland rice.…”

Section: Introductionmentioning

confidence: 99%

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Selectivity and weed control efficacy of some herbicides applied to sprinkler irrigated rice (Oryza sativa L.)

Cavero

Zaragoza

Ranzenberger

et al. 1970

Span. j. agric. res.

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Sprinkler irrigation can reduce the irrigation water needed to grow rice. However, most available information on weed control with herbicides is related to flood irrigated rice because this is the main growing method. Field experiments were conducted at Zaragoza (Spain) during two years to study weed control and tolerance of sprinkler irrigated rice to several herbicides. The main weeds were Atriplex prostrata Bouchér ex DC., Cyperus rotundus L., Echinochloa crus-galli (L.) Beauv. and Sonchus oleraceus L. Rice cv Guadiamar was tolerant to preemergence (PRE) application of clomazone at 0.36 kg ha -1 and oxadiazon at 0.5 kg ha -1 . PRE application of pendimethalin at 1.32 kg ha -1 combined with clomazone at 0.36 kg ha -1 decreased rice yield. Postemergence (POST) application of bentazon at 1.6 kg ha -1 + MCPA at 0.25 kg ha -1 did not injure rice but POST application of azimsulfuron at 0.025 kg ha -1 produced visual crop injury. Only treatments that controlled grassy weeds since rice was planted and by more than 80% at harvest time lead to acceptable rice yield (> 5,000 kg ha -1 ). Clomazone applied PRE at 0.36 kg ha -1 provided good control of grassy weeds (> 80%) and the highest rice yield, so it is recommended as a selective and efficacious PRE treatment for weed control of annual weeds in sprinkler irrigated rice. The perennial purple nutsedge was difficult to control at high plant densities (> 150 plants m -2 ) and the recommended herbicide is azimsulfuron applied at POST at 0.02 kg ha -1 . Additional key words: irrigation system; upland rice; weed competition. Resumen Selectividad de herbicidas y control de malas hierbas en arroz (Oryza sativa L.) regado por aspersiónEl riego por aspersion puede reducir el riego necesario en arroz. Sin embargo, casi toda la información sobre control de malas hierbas con herbicidas se refiere a arroz inundado por ser la forma principal de cultivo. Se realizaron ensayos de campo durante dos años para estudiar el control de malas hierbas y la selectividad de diversos herbicidas en arroz regado por aspersión. Las principales malas hierbas fueron Atriplex prostrata Bouchér ex DC., Cyperus rotundus L., Echinochloa crus-galli (L.) Beauv. y Sonchus oleraceus L. El arroz cv Guadiamar toleró las aplicaciones en preemergencia (PRE) de clomazona a 0,36 kg ha -1 y de oxadiazón a 0,5 kg ha -1 . La aplicación en PRE de pendimetalina a 1,32 kg ha -1 combinada con clomazona a 0,36 kg ha -1 disminuyó el rendimiento del arroz. La aplicación en postemergencia (POST) de bentazona a 1,6 kg ha -1 + MCPA a 0,25 kg ha -1 no afectó al arroz, pero la aplicación en POST de azimsulfurón a 0,025 kg ha -1 produjo fototoxicidad visual. Solamente los tratamientos que controlaron más de un 80% las gramíneas desde la siembra del arroz hasta la cosecha obtuvieron rendimientos aceptables de arroz (> 5.000 kg ha -1 ). La aplicación de clomazona en PRE a 0,36 kg ha -1 controló de forma eficaz las gramíneas (> 80%) y produjo los mayores rendimientos de arroz, recomendándose para el control de malas hierbas ...

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Section: Rice Tolerancesupporting

confidence: 87%

Section: Rice Tolerancesupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Selectivity and weed control efficacy of some herbicides applied to sprinkler irrigated rice (Oryza sativa L.)

Cavero

Zaragoza

Ranzenberger

et al. 1970

Span. j. agric. res.

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“…Three cabbage cultivars that exhibited higher levels of chlorosis, including the important hybrid cultivar, Bravo, also had yields reduced by 1.0 lb/acre clomazone in one of the two years of the study. Natural variation in clomazone tolerance among cultivars or genotypes within crop species has also been reported for bean [Phaseolus vulgaris (Sikkema et al, 2006)], corn [Zea mays (Keifer., 1989)], cucumber [Cucumis sativus (Al-Khatib et al, 1995;Staub et al, 1991)], pumpkin [Cucurbita maxima, C. moschata, C. pepo (Harrison and Keinath, 2003)], rice [Oryza sativa (Mudge et al, 2005;Scherder et al, 2004;Zhang et al, 2004)], sweetpotato [Ipomoea batatas (Harrison and Jackson, 2011)], and watermelon [Citrullus lanatus ]. The objective of this study was to evaluate the clomazone tolerance of broccoli cultivars in comparison with cabbage cultivars using greenhouse and field experiments to assess the potential for safely using clomazone for weed management in broccoli.…”

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confidence: 99%

Differences in Tolerance of Broccoli and Cabbage Cultivars to Clomazone Herbicide

Harrison

Farnham

2013

hortte

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Clomazone herbicide is registered for cabbage (Brassica oleracea Capitata group) in the United States but not for other crop groups within the species. Greenhouse and field experiments were designed to compare the tolerance of broccoli (B. oleracea Italica group) and cabbage cultivars to clomazone to assess its potential for weed management in broccoli. Four broccoli cultivars (Captain, Green Magic, Legacy, and Patron) and four cabbage cultivars (Bravo, SC 100, Stone Head, and Vantage Point) were evaluated in all experiments. In a greenhouse experiment where seedlings were transplanted into potting medium containing clomazone at 0, 1.0, 2.0, and 4.0 parts per million (ppm), ‘Bravo’ cabbage was most susceptible. Its injury ratings and shoot weight reduction at 1.0 ppm were similar to ratings and shoot weight reduction for the other cabbage cultivars at 4.0 ppm. Among the broccoli cultivars, Patron was highly susceptible, exhibiting injury and shoot weight reduction similar to Bravo. Green Magic was the most tolerant broccoli cultivar, and it exhibited injury and growth reduction similar to the tolerant cabbage cultivars. In a field experiment where clomazone was applied pretransplanting at 0.25, 0.5, and 1.0 lb/acre, 0.25 lb/acre caused moderate chlorosis to the susceptible cultivars, Bravo and Patron. At 0.50 and 1.0 lb/acre, most cultivars exhibited chlorosis at 2 weeks after transplanting (WAT); however, tolerant cultivars recovered and injury was often not observed at 6 WAT. At 1.0 lb/acre, chlorosis persisted until maturity on ‘Bravo’ and ‘Patron’ foliage. Clomazone did not reduce mean broccoli head weight or the percentage of plants producing market-size heads. Mean cabbage head weight for ‘Bravo’ was reduced by clomazone at 1.0 lb/acre. This study indicates that the variability in clomazone tolerance among broccoli cultivars may be similar to that among cabbage cultivars and suggests that the herbicide can be used safely on tolerant broccoli cultivars at rates that are recommended for cabbage.

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“…), C. pepo L.; Harrison and Keinath 2003], and rice (Oryza sativa L.; Mudge et al 2005;Scherder et al 2004;Zhang et al 2004).…”

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confidence: 99%

Greenhouse Assessment of Differences in Clomazone Tolerance among Sweetpotato Cultivars

Harrison

Jackson

2011

Weed technol.

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Differences in clomazone tolerance among sweetpotato cultivars were first observed in April 2007 after use of the herbicide for weed control in fields containing the sweetpotato breeding project at the U.S. Vegetable Laboratory. Susceptible cultivars and experimental clones exhibited severe foliar chlorosis and reduced growth, whereas the most tolerant were not injured. Twelve cultivars and experimental clones were included in a greenhouse experiment to quantify the differences in clomazone tolerance. In the greenhouse, the clomazone concentration that caused moderate injury or reduction in shoot growth to the most tolerant clones was approximately 10 times the concentration that caused a similar response in the most susceptible clones. Two older cultivars, Excel and Sumor, that were developed before the registration of clomazone for use in sweetpotato were susceptible. Clomazone is an important component in sweetpotato weed management, and susceptibility is an undesirable trait that should be avoided in new sweetpotato cultivars.

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Rice (Oryza sativa) Cultivar Tolerance to Clomazone in Water-Seeded Production¹

Cited by 13 publications

References 16 publications

Selectivity and weed control efficacy of some herbicides applied to sprinkler irrigated rice (Oryza sativa L.)

Selectivity and weed control efficacy of some herbicides applied to sprinkler irrigated rice (Oryza sativa L.)

Differences in Tolerance of Broccoli and Cabbage Cultivars to Clomazone Herbicide

Greenhouse Assessment of Differences in Clomazone Tolerance among Sweetpotato Cultivars

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Rice (Oryza sativa) Cultivar Tolerance to Clomazone in Water-Seeded Production1

Cited by 13 publications

References 16 publications

Selectivity and weed control efficacy of some herbicides applied to sprinkler irrigated rice (Oryza sativa L.)

Selectivity and weed control efficacy of some herbicides applied to sprinkler irrigated rice (Oryza sativa L.)

Differences in Tolerance of Broccoli and Cabbage Cultivars to Clomazone Herbicide

Greenhouse Assessment of Differences in Clomazone Tolerance among Sweetpotato Cultivars

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Product

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Rice (Oryza sativa) Cultivar Tolerance to Clomazone in Water-Seeded Production¹