Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> 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...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/11/19/2639 |
| _version_ | 1797477388230066176 |
|---|---|
| author | Ruolin Wang Yujun Han Ying Sun Hongjuan Huang Shouhui Wei Zhaofeng Huang |
| author_facet | Ruolin Wang Yujun Han Ying Sun Hongjuan Huang Shouhui Wei Zhaofeng Huang |
| author_sort | Ruolin Wang |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-09T21:16:55Z |
| format | Article |
| id | doaj.art-682b346d10c1449db7a28c66f409d9b1 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T21:16:55Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-682b346d10c1449db7a28c66f409d9b12023-11-23T21:30:50ZengMDPI AGPlants2223-77472022-10-011119263910.3390/plants11192639Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> L.Ruolin Wang0Yujun Han1Ying Sun2Hongjuan Huang3Shouhui Wei4Zhaofeng Huang5State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaCollege of Agriculture, Northeast Agricultural University, Harbin 150038, ChinaCollege of Agriculture, Northeast Agricultural University, Harbin 150038, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaThe 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.https://www.mdpi.com/2223-7747/11/19/2639redroot amaranthALS-inhibiting herbicidetarget-site mutationresistancecompetitivenessfitness |
| spellingShingle | Ruolin Wang Yujun Han Ying Sun Hongjuan Huang Shouhui Wei Zhaofeng Huang Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> L. Plants redroot amaranth ALS-inhibiting herbicide target-site mutation resistance competitiveness fitness |
| title | Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> L. |
| title_full | Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> L. |
| title_fullStr | Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> L. |
| title_full_unstemmed | Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> L. |
| title_short | Growth and Competitiveness of ALS-Inhibiting Herbicide-Resistant <i>Amaranthus retroflexus</i> L. |
| title_sort | growth and competitiveness of als inhibiting herbicide resistant i amaranthus retroflexus i l |
| topic | redroot amaranth ALS-inhibiting herbicide target-site mutation resistance competitiveness fitness |
| url | https://www.mdpi.com/2223-7747/11/19/2639 |
| work_keys_str_mv | AT ruolinwang growthandcompetitivenessofalsinhibitingherbicideresistantiamaranthusretroflexusil AT yujunhan growthandcompetitivenessofalsinhibitingherbicideresistantiamaranthusretroflexusil AT yingsun growthandcompetitivenessofalsinhibitingherbicideresistantiamaranthusretroflexusil AT hongjuanhuang growthandcompetitivenessofalsinhibitingherbicideresistantiamaranthusretroflexusil AT shouhuiwei growthandcompetitivenessofalsinhibitingherbicideresistantiamaranthusretroflexusil AT zhaofenghuang growthandcompetitivenessofalsinhibitingherbicideresistantiamaranthusretroflexusil |