Characterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallion

Abstract The characterization of hexaconazole residues was evaluated through both single and sequential applications in Chinese cabbage and spring scallion. Maximum residue levels following foliar application were determined to be 1.14 mg kg− 1 in the cabbage and 0.04 mg kg− 1 in the scallion, where...

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Main Authors: Ji Won Lee, Jin-Seong Kim, Ji Hyun Park, Hyun Ho Noh, Min Seok Oh, Jin-Hyo Kim, Kyeong-Ae Son
Format: Article
Language:English
Published: SpringerOpen 2025-05-01
Series:Applied Biological Chemistry
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Online Access:https://doi.org/10.1186/s13765-025-00995-x
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author Ji Won Lee
Jin-Seong Kim
Ji Hyun Park
Hyun Ho Noh
Min Seok Oh
Jin-Hyo Kim
Kyeong-Ae Son
author_facet Ji Won Lee
Jin-Seong Kim
Ji Hyun Park
Hyun Ho Noh
Min Seok Oh
Jin-Hyo Kim
Kyeong-Ae Son
author_sort Ji Won Lee
collection DOAJ
description Abstract The characterization of hexaconazole residues was evaluated through both single and sequential applications in Chinese cabbage and spring scallion. Maximum residue levels following foliar application were determined to be 1.14 mg kg− 1 in the cabbage and 0.04 mg kg− 1 in the scallion, whereas the soil application contributed minimally. Notably, the initial residue in the cabbage was 28 times greater than that observed in the scallion. Fourteen days after the final foliar application, the cabbage exhibited a 3.6-fold increase in fresh weight, compared to a 1.4-fold increase in the scallion. The degradation rates of hexaconazole were calculated at 0.089 day− 1 for the cabbage and 0.207 day− 1 for the scallion, corresponding with degradation half-lives (T1/2) of 7.8 days for the cabbage, which was more than double the 3.4 days for the scallion. Biological T1/2s in vitro were 210 min for the scallion, while the degradation was not detected in the cabbage. Finally, the 50% dissipation times (DT50) were 3.6–3.8 days for the cabbage and 2.0-3.7 days for the scallion after foliar and sequential applications. In addition, hexaconazole exhibited persistence in soil under greenhouse conditions, resulting in the translocation of residues to rotational crops with detected concentrations reaching up to 0.013 mg kg− 1.
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spelling doaj-art-10a41e65b0fb4ccd891e200e19c8dc182025-08-20T02:34:15ZengSpringerOpenApplied Biological Chemistry2468-08422025-05-016811810.1186/s13765-025-00995-xCharacterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallionJi Won Lee0Jin-Seong Kim1Ji Hyun Park2Hyun Ho Noh3Min Seok Oh4Jin-Hyo Kim5Kyeong-Ae Son6Residual Agrochemical Evaluation Division, National Institute of Agricultural Science, RDADivision of Applied Life Science, Institute of Agriculture and Life Science (IALS), Gyeongsang National UniversityResidual Agrochemical Evaluation Division, National Institute of Agricultural Science, RDAResidual Agrochemical Evaluation Division, National Institute of Agricultural Science, RDAResidual Agrochemical Evaluation Division, National Institute of Agricultural Science, RDADivision of Applied Life Science, Institute of Agriculture and Life Science (IALS), Gyeongsang National UniversityResidual Agrochemical Evaluation Division, National Institute of Agricultural Science, RDAAbstract The characterization of hexaconazole residues was evaluated through both single and sequential applications in Chinese cabbage and spring scallion. Maximum residue levels following foliar application were determined to be 1.14 mg kg− 1 in the cabbage and 0.04 mg kg− 1 in the scallion, whereas the soil application contributed minimally. Notably, the initial residue in the cabbage was 28 times greater than that observed in the scallion. Fourteen days after the final foliar application, the cabbage exhibited a 3.6-fold increase in fresh weight, compared to a 1.4-fold increase in the scallion. The degradation rates of hexaconazole were calculated at 0.089 day− 1 for the cabbage and 0.207 day− 1 for the scallion, corresponding with degradation half-lives (T1/2) of 7.8 days for the cabbage, which was more than double the 3.4 days for the scallion. Biological T1/2s in vitro were 210 min for the scallion, while the degradation was not detected in the cabbage. Finally, the 50% dissipation times (DT50) were 3.6–3.8 days for the cabbage and 2.0-3.7 days for the scallion after foliar and sequential applications. In addition, hexaconazole exhibited persistence in soil under greenhouse conditions, resulting in the translocation of residues to rotational crops with detected concentrations reaching up to 0.013 mg kg− 1.https://doi.org/10.1186/s13765-025-00995-xChinese cabbageHexaconazole residueResidue dissipationResidue degradationSequential applicationSpring scallion
spellingShingle Ji Won Lee
Jin-Seong Kim
Ji Hyun Park
Hyun Ho Noh
Min Seok Oh
Jin-Hyo Kim
Kyeong-Ae Son
Characterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallion
Applied Biological Chemistry
Chinese cabbage
Hexaconazole residue
Residue dissipation
Residue degradation
Sequential application
Spring scallion
title Characterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallion
title_full Characterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallion
title_fullStr Characterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallion
title_full_unstemmed Characterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallion
title_short Characterization of residue dissipation of hexaconazole in Chinese cabbage and spring scallion
title_sort characterization of residue dissipation of hexaconazole in chinese cabbage and spring scallion
topic Chinese cabbage
Hexaconazole residue
Residue dissipation
Residue degradation
Sequential application
Spring scallion
url https://doi.org/10.1186/s13765-025-00995-x
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