Sulfonylurea derivatives with fused heterocycle moiety control sulfonylurea‐resistant paddy weeds

Tanaka, Yasushi; Kajiwara, Y.; Noguchi, Makoto; Shimizu, Naofumi; Minami, Koichiro

doi:10.1111/j.1445-6664.2006.00201.x

Cited by 7 publications

(6 citation statements)

References 20 publications

(22 reference statements)

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“… The data of the compounds 17 , 21 , 22 , 26 , 28 , 32 and 33 were reported by Tanaka et al . (2006).…”

Section: Resultsmentioning

confidence: 75%

“…Tanaka et al . (2006) suggested that the 2‐position and the 6‐position had an important role for the control of SU‐R biotypes by the sulfonylurea derivatives with an imidazopyridazine moiety.…”

Section: Resultsmentioning

confidence: 99%

“…Tanaka et al . (2006) reported that some sulfonylurea derivatives with a fused heterocyclic moiety showed herbicidal activity against some of SU‐R biotypes.…”

mentioning

confidence: 99%

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Evaluation of novel sulfonylurea derivatives with a fused heterocyclic moiety as paddy herbicides that control sulfonylurea‐resistant weeds

Ikeda

Yamato

Kajiwara

et al. 2011

Weed Biology and Management

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Herbicidal activity and acetolactate synthase (ALS) inhibition of sulfonylurea derivatives with a fused heterocyclic moiety bonded to a sulfonyl group were investigated. Some compounds that had an imidazo [1,2-b]pyridazine moiety substituted at the 2-position by chlorine or methyl controlled sulfonylurea-resistant (SU-R) weeds and showed inhibitory activity to ALS prepared from SU-R Schoenoplectus juncoides shoot.There was a correlation between in vitro and whole-plant herbicidal activity of the compounds mentioned above against SU-R Schoenoplectus juncoides. Among them 1-(2-chloro-6-propylimidazo[1,2-b]pyridazin-3-ylsulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)urea, propyrisulfuron, was selected for further evaluation. Propyrisulfuron effectively controlled paddy weeds at doses of 70 and 140 g a.i. ha -1 with good rice selectivity in a field trial.

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“… The data of the compounds 17 , 21 , 22 , 26 , 28 , 32 and 33 were reported by Tanaka et al . (2006).…”

Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of novel sulfonylurea derivatives with a fused heterocyclic moiety as paddy herbicides that control sulfonylurea‐resistant weeds

Ikeda

Yamato

Kajiwara

et al. 2011

Weed Biology and Management

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“…Pyrimisulfan, penoxsulam, propyrisulfuron, and metazosulfuron were reported to have herbicidal activity in controlling some sulfonylurea‐resistant weeds (Suzuki et al . 2004; Tanaka et al . 2006; Hamamura 2011).…”

Section: Rice Cultivation and Weed Management Technologymentioning

confidence: 99%

Development of lowland weed management and weed succession in Japan

Watanabe

2011

Weed Biology and Management

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Since the introduction of rice production in Japan, lowland areas have been managed for rice production with the purpose of better rice growth, as well as lesser weed infestation. Rice is cropped every year in lowland fields by repeated cultivation of a single crop, with high yields and without soil sickness usually being observed in upland fields.This is probably because the irrigation water supplies various nutrients for healthy rice growth and the drainage washes out and removes harmful factors. However, until recently, the wet or flooded conditions of lowland fields in the Asian monsoon region never have allowed humans to cultivate useful summer crops, except rice or some aquatic plants.Therefore, the management of lowland areas in the Asian monsoon region has been significantly different from European field management, where crop rotation has been the traditional standard practice. Paddy weeds are aquatic plants or hygrophytes that have adapted to lowland fields.Traditionally, tillage and puddling were practiced seasonally in lowland fields on a regular schedule every year. Rice cultivation technology was developed and supported by regional irrigation systems that created stable environments for typical paddy weeds to complete their life cycle. After the introduction of chemical weed control, rice fields became very severe habitats for these paddy weeds, where they could not grow and reproduce without strategies for survival under herbicide exposure. Even so, many of the traditional paddy weeds survived because of their accumulated or uneradicated seed banks, although several aquatic plants were listed as endangered or threatened species.The important weed species changed, sometimes rapidly and sometimes slowly, depending both on their reproductive system and their biological response towards field management and weed control systems.Very recently, the level of perennial weeds, herbicide-resistant weeds, and weedy rice has increased in paddy fields that are highly dependent on herbicide use. In addition, several hygrophyte species have invaded paddy fields. In order to address these issues, the improvement and application of integrated weed management methods are expected to be critical. .x tillage had almost no effect on the final yield of rice even though it was very effective for weed control, based on his study of the physical, chemical, and physiological aspects of the interaction between paddy soil and rice growth. 176 H.Watanabe

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“…The sedge, S. juncoides , is one of the most noxious paddy weeds in Japan and also has evolved resistance to ALS‐inhibiting herbicides (Kohara et al . 1999; Tanaka 2003; Tanaka et al . 2006; Uchino et al .…”

Section: Introductionmentioning

confidence: 99%

Effects of pyruvate and sucrose on acetolactate synthase activity in Lindernia species and Schoenoplectus juncoides in an in vivo assay

Uchino¹,

Watanabe

2007

Weed Biology and Management

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Sulfonylurea derivatives with fused heterocycle moiety control sulfonylurea‐resistant paddy weeds

Cited by 7 publications

References 20 publications

Evaluation of novel sulfonylurea derivatives with a fused heterocyclic moiety as paddy herbicides that control sulfonylurea‐resistant weeds

Evaluation of novel sulfonylurea derivatives with a fused heterocyclic moiety as paddy herbicides that control sulfonylurea‐resistant weeds

Development of lowland weed management and weed succession in Japan

Effects of pyruvate and sucrose on acetolactate synthase activity in Lindernia species and Schoenoplectus juncoides in an in vivo assay

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