Pre-selection of Imidazolinone-Resistant Canola Plants by Germination and Subsequent Seedling Growth Parameters

Elif Yaman; Mehmet Demir Kaya

doi:10.56430/japro.1678921

EN

Pre-selection of Imidazolinone-Resistant Canola Plants by Germination and Subsequent Seedling Growth Parameters

Abstract

This study aimed to investigate the potential use of the germination test as a model for screening canola plants for herbicide resistance. Imidazoline-resistant (IMI-R) and susceptible (IMI-S) canola hybrids were germinated in various concentrations of imazamox (0, 0.25, 0.50, 1.00, and 2.00 mM) and clopyralid (0, 0.21, 0.43, 0.85, and 1.72 mM). Germination percentage, mean germination time, germination index, shoot length, root length, seedling fresh and dry weight, and dry matter were analyzed. The results indicated that varying concentrations of imazamox and clopyralid had only a limited effect on the germination parameters in canola hybrids. However, seedling growth parameters such as shoot length, root length, and seedling fresh weight were significantly reduced with increasing concentrations of imazamox and clopyralid. Notably, the differences between IMI-R and IMI-S canola hybrids were evident for these parameters. IMI-S canola hybrid exhibited sensitivity to imazamox, while the IMI-R hybrid showed no significant reduction in growth up to 0.50 mM imazamox. Conversely, the shoot length of the IMI-S hybrid was less affected and was longer than that of the IMI-R hybrid under clopyralid treatment. Of the parameters investigated, root length was the most sensitive to imazamox, which can be used to select herbicide resistance. It was concluded that the suitable imazamox concentrations for selecting imazamox-resistant canola plants during the early growth stage were between 0.50 mM and 1.00 mM. Germination parameters were found to be unsuitable criteria for imazamox resistance, while root length, shoot length, and seedling fresh weight should be considered for selection.

Keywords

Brassica napus L. , Germination , Herbicide , Imazamox , Resistant , Root length

References

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Details

Primary Language

English

Subjects

Agricultural Engineering (Other)

Journal Section

Research Article

Authors

Elif Yaman ^*
0009-0000-7929-6008
Türkiye

Mehmet Demir Kaya
0000-0002-4681-2464
Türkiye

Publication Date

June 29, 2025

Submission Date

April 19, 2025

Acceptance Date

June 17, 2025

Published in Issue

Year 2025 Volume: 6 Number: 2

DOI

https://doi.org/10.56430/japro.1678921

IZ

https://izlik.org/JA67JE77LF

APA

Yaman, E., & Kaya, M. D. (2025). Pre-selection of Imidazolinone-Resistant Canola Plants by Germination and Subsequent Seedling Growth Parameters. Journal of Agricultural Production, 6(2), 117-125. https://doi.org/10.56430/japro.1678921

Pre-selection of Imidazolinone-Resistant Canola Plants by Germination and Subsequent Seedling Growth Parameters

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Pre-selection of Imidazolinone-Resistant Canola Plants by Germination and Subsequent Seedling Growth Parameters

Abstract

Keywords

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

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