Rice (<i>Oryza sativa</i>) Response to Imazaquin Residues in a Soybean (<i>Glycine max</i>) and Rice Rotation

Helms, R. S.; Tripp, Timothy N.; Smith, Roy J.; Baldwin, F. L.; Hackworth, Max

doi:10.1017/s0890037x00032681

Cited by 9 publications

(8 citation statements)

References 11 publications

(13 reference statements)

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“…In most cases, shoot and root weights were reduced both in the year of application and in the subsequent year. This does, how ever, agree with data on rice with 560 g ha" 1 imaza quin, in which injury was not observed one year follow ing soil application (9). AC 263,222 did not reduce emergence of any crop (data not shown).…”

Section: Resultssupporting

confidence: 88%

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Effects of Soil-Applied AC 263,222 on Crops Rotated with Soybean (Glycine Max)

Wixson

Shaw

1992

Weed technol.

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The effects of the imidazolinone herbicide AC 263,222 on crops that may be rotated with soybean were studied in the greenhouse and field. Corn, grain sorghum, cotton, rice, wheat, soybean, and Italian ryegrass were planted directly into treated soil after AC 263,222 was incorporated. In the field, AC 263,222 at rates as high as 35 g ai ha–1did not reduce shoot weight or emergence of these species. Some visual injury occurred, but was 20% or less 28 d after planting for all crops. Crops were more sensitive in the greenhouse, where reductions in both shoot and root dry weight were observed. AC 263,222 at 13, 13, and 7 g ha–1reduced corn, grain sorghum, and Italian ryegrass shoot weights, respectively. Cotton, rice, and wheat tolerated rates from 27 to 55 g ha–1. Biomass reduction occurred with all crops at 55 g ha–1and above. Because AC 263,222 will be registered for use in soybean at 9 to 18 g ha–1, and potential rotational crops were planted immediately after soil treatment, problems with injury to these crops are not expected.

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Section: Resultssupporting

confidence: 88%

“…AC 263,222 did not reduce emergence, except with rice at 55 g ha" 1 and above (Table 4). This agrees with the field data collected on these same crops for imaza quin at similar rates (3,9).…”

Section: Wixson and Shaw: Ac 263333 Effects On Crops Rotated With Sosupporting

confidence: 89%

Effects of Soil-Applied AC 263,222 on Crops Rotated with Soybean (Glycine Max)

Wixson

Shaw

1992

Weed technol.

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“…Previous research has indicated variable results with the use of ALS-inhibiting herbicides. In an imazaquin carryover study in Arkansas, rice yield decreased following imazaquin applied PPI and PRE to soybean [Glycine max (L.) Merr] at 140 g/ha compared with the higher rate of 280 g/ha (Helms et al 1989). Webster and Shaw (1996) reported similar results with soybean following pyrithiobac applied to cotton (Gossypium hirsutum L.).…”

Section: Grain Typementioning

confidence: 88%

Rice Cultivar Response to Penoxsulam

et al. 2007

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A study was conducted in 2005 and 2006 to evaluate the response of 10 rice cultivars to penoxsulam applied at 70 g ai/ha to two- to three-leaf rice. A related study was conducted in 2004 and 2005 to compare the rice response to applications of penoxsulam at 35 and 70 g/ha and bispyribac-sodium at 28 g ai/ha. In the first study, all 10 rice cultivars exhibited tolerance to penoxsulam as evidenced by plant height, number of days to 50% heading, and rice grain yield. In the second study, applications of both rates of penoxsulam and bispyribac-sodium reduced mass of rice roots 65 to 71% 2 wk after treatment compared with a nontreated control. However, rice grain yield was higher following application of penoxsulam at 70 g/ha compared with yield of the nontreated control or yield following penoxsulam at 35 g/ha and bispyribac-sodium. Rice recovered from injury observed following herbicide application with no negative impact on grain yield. Results indicate that, even though rice root injury can be severe following application, penoxsulam is safe for application to rice cultivars currently grown in the southern U.S. Rice Belt.

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“…Renner (26) observed signifi cant com injury from imazaquin applied the previous year in one of two years. No imazaquin injury to rice was observed in soybean-rice rotational studies by Helms, et al (9). Imazethapyr has been observed to injure corn slightly (20).…”

Section: Introductionmentioning

confidence: 91%

“…As soil pH or organic matter increases, or as temperature or moisture decreases, persistence of imazaquin and imazethapyr tends to increase (5,6,9,14,21). Loux et al (15) observed low herbicide dissipation rates of imazaquin, imazethapyr, and clomazone {2-[(2-chlorophenyl)~ methyl]-4,4-dimethyl-3-isoxazolidinone} in a soil with Weed Technology.…”

Section: Introductionmentioning

confidence: 99%

Response of Soybean (Glycine max) and Rice (Oryza sativa) in Rotation to AC 263,222

Grymes

Chandler

Nester³

1995

Weed technol.

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Field studies were conducted in 1991 and 1992 to evaluate the response of soybean and the subsequent rice crop to AC 263,222 applied alone and in tank mixtures with imazethapyr or imazaquin. In 1991, 18, 36, and 70 g ai/ha of AC 263,222 visibly stunted soybean 9, 19, and 35%, respectively. Adding imazethapyr at 36 g/ha or imazaquin at 70 g/ha to AC 263,222 in a tank mixture did not increase soybean response compared to AC 263,222 alone. Soybean yield was not reduced by any treatment. In 1992, 14 g/ha of AC 263,222 alone or in tank mixtures damaged soybean 38% or greater. In one study, rice was injured the year following application of AC 263,222 alone and in tank mixtures. Rice yield was reduced by 70 g/ha of AC 263,222 alone and by 36 g/ha of AC 263,222 when tank mixed with 36 g/ha of imazethapyr.

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Rice (Oryza sativa) Response to Imazaquin Residues in a Soybean (Glycine max) and Rice Rotation

Cited by 9 publications

References 11 publications

Effects of Soil-Applied AC 263,222 on Crops Rotated with Soybean (Glycine Max)

Effects of Soil-Applied AC 263,222 on Crops Rotated with Soybean (Glycine Max)

Rice Cultivar Response to Penoxsulam

Response of Soybean (Glycine max) and Rice (Oryza sativa) in Rotation to AC 263,222

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