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Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L.

The evolved acetolactate synthase (ALS) inhibiting herbicide-resistant redroot amaranth has been confirmed in China and caused a great loss in soybean production. This study was conducted to evaluate the growth and competitiveness of ALS-resistant (R) and ALS-susceptible (S) redroot amaranth biotype...

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Autores principales: Wang, Ruolin, Han, Yujun, Sun, Ying, Huang, Hongjuan, Wei, Shouhui, Huang, Zhaofeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9572905/
https://www.ncbi.nlm.nih.gov/pubmed/36235505
http://dx.doi.org/10.3390/plants11192639
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author Wang, Ruolin
Han, Yujun
Sun, Ying
Huang, Hongjuan
Wei, Shouhui
Huang, Zhaofeng
author_facet Wang, Ruolin
Han, Yujun
Sun, Ying
Huang, Hongjuan
Wei, Shouhui
Huang, Zhaofeng
author_sort Wang, Ruolin
collection PubMed
description The evolved acetolactate synthase (ALS) inhibiting herbicide-resistant redroot amaranth has been confirmed in China and caused a great loss in soybean production. This study was conducted to evaluate the growth and competitiveness of ALS-resistant (R) and ALS-susceptible (S) redroot amaranth biotypes. Seeds of both R and S biotypes were subjected to different temperature regimes. Data revealed that the germination percentage and seedling vigor of both biotypes did not differ largely from each other at 10/20 to 30/40 °C. Under noncompetitive conditions, there were no significant leaf number, plant height, or dry weight differences between the R and S biotypes. Moreover, replacement series experiment results indicated that the R and S biotypes have a similar competitive ability. This study shows that there are no significant differences in growth or competitiveness between the R and S redroot amaranth biotypes regarding the physiological characteristics evaluated. Therefore, the proportion and distribution of the R biotype will not be affected in the absence of the ALS-inhibiting herbicide. Some other effective management practices should be adopted to cope with this troublesome weed.
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spelling pubmed-95729052022-10-17 Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L. Wang, Ruolin Han, Yujun Sun, Ying Huang, Hongjuan Wei, Shouhui Huang, Zhaofeng Plants (Basel) Communication The evolved acetolactate synthase (ALS) inhibiting herbicide-resistant redroot amaranth has been confirmed in China and caused a great loss in soybean production. This study was conducted to evaluate the growth and competitiveness of ALS-resistant (R) and ALS-susceptible (S) redroot amaranth biotypes. Seeds of both R and S biotypes were subjected to different temperature regimes. Data revealed that the germination percentage and seedling vigor of both biotypes did not differ largely from each other at 10/20 to 30/40 °C. Under noncompetitive conditions, there were no significant leaf number, plant height, or dry weight differences between the R and S biotypes. Moreover, replacement series experiment results indicated that the R and S biotypes have a similar competitive ability. This study shows that there are no significant differences in growth or competitiveness between the R and S redroot amaranth biotypes regarding the physiological characteristics evaluated. Therefore, the proportion and distribution of the R biotype will not be affected in the absence of the ALS-inhibiting herbicide. Some other effective management practices should be adopted to cope with this troublesome weed. MDPI 2022-10-08 /pmc/articles/PMC9572905/ /pubmed/36235505 http://dx.doi.org/10.3390/plants11192639 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Wang, Ruolin
Han, Yujun
Sun, Ying
Huang, Hongjuan
Wei, Shouhui
Huang, Zhaofeng
Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L.
title Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L.
title_full Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L.
title_fullStr Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L.
title_full_unstemmed Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L.
title_short Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant Amaranthus retroflexus L.
title_sort growth and competitiveness of als-inhibiting herbicide-resistant amaranthus retroflexus l.
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9572905/
https://www.ncbi.nlm.nih.gov/pubmed/36235505
http://dx.doi.org/10.3390/plants11192639
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