Dissipation and residue of 2,4-D isooctyl ester in wheat and soil

Liu, Congyun; Li, Li; Wang, Suli; You, Xiao‐Zeng; Jiang, Shuren; Liu, Fengmao

doi:10.1007/s10661-011-2259-4

Cited by 14 publications

(10 citation statements)

References 9 publications

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“…2,4-D was also, found to be efficient in inhibiting seed germination and radical length of Hibiscus cannabinus at a rate of 5000 ppm compared to the control which gave 98% and 15.7 cm for germination and radical length, respectively [19]. Liu [20] found that The application of 2.4-D in wheat at the soft dough stage of seeds, resulted in a higher level of residue of the active ingredient of 2,4-D in seeds, compared to the application of herbicide at ripening stages.. This may possibly result from the increased translocation of photoassimilates from the various plant structures to the seeds [21].…”

Section: Discussionmentioning

confidence: 99%

“…2,4-D at a high concentration which acts as herbicide and persists for a long time within the plant and is described as an auxin overdose [9]. The application of 2.4-D in wheat at the soft dough stage of seeds, resulted in a higher level of residue of the active ingredient of 2,4-D in seeds, compared to the application of herbicide at ripening stages [20]. The largest level of residue of herbicide 2.4-D found at the soft dough stage, compared to the ripening stages, may possibly result from increased translocation of photoassimilates from the various plant structures to the seeds [21].…”

Section: Discussionmentioning

confidence: 99%

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Influence of 2,4-dichloro Phenoxy Acetic Acid on Seeds Germination and Early Growth of Mesquite (Prosopis juliflora Swarz) DC Seedlings

Suliman

Elhewairis²,

Elamin³

2023

ARJA

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This study was conducted to evaluate the effect of 2,4-dichloro phenoxy acidic acid (2,4-D) on seed germination and the early growth of mesquite (Prosopis juliflora) seedlings. The three sizes of mesquite at the flowering stage (small, medium, and large) were treated with 2,4-D at different rates (0, 6×103, 12×103, 18×103 and 24×103 mg a.i. / L) dissolved in two solvents (diesel or water), the application method basal bark treatment was used in the two different seasons. The results showed that: the three factors (2,4-D rates, tree sizes, and solvent types) significantly decreased germination percentage with the increase of 2,4-D rate dissolved in diesel with all sizes of trees, while the emergence percentage, radical length, and shoot height were significantly decreased as 2,4-D rate increase dissolved in diesel or water. In the winter season, the root length of seedlings raised from seeds collected from the three tree sizes treated with 2,4-D dissolved in water was significantly decreased as a 2,4-D rate increased, while in the rainy season, the root length was affected with 2,4-D dissolved in diesel. In addition, the effect of 2,4-D rates and solvent types was evaluated for all parameters, the results found that: 2,4-D dissolved in diesel significantly decreased germination percent than the corresponding rates dissolved in water. Emergence percentage and shoot height and radical length were significantly decreased with 2,4-D dissolved in diesel or water compared to their control. In the winter season, the root length is affected by 2,4-D dissolved in water, while in the rainy season affected by 2,4-D dissolved in diesel.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Influence of 2,4-dichloro Phenoxy Acetic Acid on Seeds Germination and Early Growth of Mesquite (Prosopis juliflora Swarz) DC Seedlings

Suliman

Elhewairis²,

Elamin³

2023

ARJA

View full text Add to dashboard Cite

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“…Typically, physical and chemical factors, such as light, heat, pH and moisture, play a significant role in the degradation of pesticides in plants and growth dilution should also not be ignored (Tewary, Kumar, Ravindranath, & Shanker, 2005;Liu et al, 2012). Previous studies showed that the dissipation rate of tebuconazole varied in different crop varieties or matrices.…”

Section: Dissipation Of Tebuconazole In Jujubementioning

confidence: 99%

Residue analysis and risk assessment of tebuconazole in jujube (Ziziphus jujuba Mill)

You

Wang

et al. 2017

Biomedical Chromatography

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In this study, a sensitive and reliable analytical method, based on a modified Quick, Easy, Cheap, Effective, Rugged and Safe procedure, was established for determination of tebuconazole in jujube. After extraction with acetonitrile, the samples were cleaned up by dispersive solid-phase extraction with primary secondary amine, and determined by high-performance liquid chromatography tandem mass spectrometry. At fortification levels of 0.01, 0.1 and 2.0 mg kg , the average recoveries of tebuconazole in jujube were in the range 97.6-101.9%, with relative standard deviations of 1.5-3.5%. The dissipation and residual levels of tebuconazole in jujube under field conditions were investigated. Tebuconazole dissipated relatively slowly in jujube, with a half-life of 33.0 days. The terminal residue experiments of tebuconazole in jujube were conducted in four locations in China and the risk was evaluated using risk quotients (RQ). RQ values were found to be significantly lower than RQ = 1, indicating that the risk to human health of using the recommended doses of tebuconazole in jujube was not significant. This study could provide guidance for the safe and reasonable use of tebuconazole in jujube and serve as a reference for the establishment of limit of maximum residue in China.

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“…Yet, at the same time, it was found that at the highest herbicide rate, compared with the lower ones, the residue increased by approximately 367% in the wheat seeds. During evaluation of the residual effect of 2.4-D in wheat and in the soil, it was found that the half-life of the herbicide is 1 day in wheat seedlings and 2.8 days in the soil (Liu et al, 2012).…”

mentioning

confidence: 99%

“…In the literature, there are reports of studies where the application of 2.4-D in wheat caused the residue of the active ingredient to occur in seeds or grains of the crop (Cessna and Holm, 1994;Liu et al, 2012). In this sense, it was found that the application of 2.4-D in wheat, when the seeds were at the soft dough stage, resulted in a higher level of residue compared with applications made at the hard dough and ripening stages, in all plant structures evaluated (whole The 2.4-D residue found when the herbicide was applied at the flowering stage was similar at all evaluated rates, and it was at the limit of quantification (Table 3).…”

mentioning

confidence: 99%

Physiological Performance of Seeds and Level of Herbicide Residues Depending on Application of 2.4-D in Wheat

et al. 2018

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-Horseweed control through application of 2.4-D in the winter season is an alternative to manage biotypes resistant to herbicides that belong to other mechanisms of action. The objectives of this study were to assess the physiological quality of wheat seeds and determine the rate of 2.4-D residue, as function of application stages and herbicide rates. The treatments were arranged in factorial scheme, with three application stages (flowering, soft dough and hard dough), and four 2.4-D rates (0; 504; 1,008 and 2,015 g a.i. ha ). The application of 2.4-D in the wheat crop changed physiological seed quality by increased the rate and total percentage of germination. The application of 2.4-D resulted in herbicide accumulation in seeds, especially when application was carried out at the soft dough stage. Also, the increase in herbicide rate increased the level of residue in the seeds. However, regardless of stage of application for 2.4-D and herbicide rate in use, the values of residue found in the seeds were below the allowed maximum limit.Keywords: Triticum aestivum, weeds, germination, dry matter. RESUMO -O controle de buva através da aplicação de 2,4-D na estação hibernal de cultivo é alternativa para o manejo de biótipos com resistência a herbicidas pertencentes a outros mecanismos de ação. Os objetivos do estudo foram avaliar a qualidade fisiológica das sementes de trigo e determinar o resíduo de 2,4-D, em função do estádio de aplicação e de doses do herbicida. Os tratamentos foram arranjados em esquema fatorial, sendo três estádios de aplicação (florescimento, grão pastoso e massa firme) e quatro doses do herbicida 2,4-D (

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Dissipation and residue of 2,4-D isooctyl ester in wheat and soil

Cited by 14 publications

References 9 publications

Influence of 2,4-dichloro Phenoxy Acetic Acid on Seeds Germination and Early Growth of Mesquite (Prosopis juliflora Swarz) DC Seedlings

Influence of 2,4-dichloro Phenoxy Acetic Acid on Seeds Germination and Early Growth of Mesquite (Prosopis juliflora Swarz) DC Seedlings

Residue analysis and risk assessment of tebuconazole in jujube (Ziziphus jujuba Mill)

Physiological Performance of Seeds and Level of Herbicide Residues Depending on Application of 2.4-D in Wheat

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