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| DOI: | 10.1094/PDIS-01-20-0009-RE |
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| Web URL(s): | https://apsjournals.apsnet.org/doi/full/10.1094/PDIS-01-20-0009-RE
Last checked: 01/29/2021
Access conditions: Item is within a limited-access website
https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-11-19-2473-SR
Last checked: 01/29/2021
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Wu, Xianxin;
Bian, Qiang;
Lin, Qiujun;
Sun, Qian;
Ni, Xinyu;
Xu, Xiaofeng;
Qiu, Yongchun;
Xuan, Yuanhu;
Cao, Yuanyin;
Li, Tianya |
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| Author Affiliation: | Wu, Lin, Sun, Ni, Xu, Qiu, Xuan, Cao and Li: College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China; Bian: National Pesticide Engineering Research Center, Nankai University, Tianjin, China |
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| Title: | Sensitivity of Puccinia graminis f. sp. tritici isolates from China to triadimefon and cross-resistance against diverse fungicides |
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| Section: | Research
Other records with the "Research" Section
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| Source: | Plant Disease. Vol. 104, No. 8, August 2020, p. 2082-2085. |
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| Publishing Information: | [Washington, D.C.]: Bureau of Plant Industry, U.S. Dept. of Agriculture |
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| # of Pages: | 4 |
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| Related Web URL: | https://apsjournals.apsnet.org/doi/abs/10.1094/PDIS-01-20-0009-RE
Last checked: 01/29/2021
Notes: Abstract only |
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| Keywords: | Author-Supplied Keywords: Fungicide; Resistance; Stem rust; Wheat
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| Abstract/Contents: | "Wheat stem rust caused by Puccinia graminis f. sp. tritici is an important wheat disease with sudden and devastating characteristics. The appearance and spread of new P. graminis f. sp. tritici races (Ug99, TKTTF, and TTTTF) have once again renewed the interest in the prevention and control of wheat stem rust. Fungicides can effectively control the epidemics of this disease in a short period of time. However, the fungal pathogen is prone to developing resistance. Therefore, we collected 89 isolates of P. graminis f. sp. tritici from four provinces in China and used the spore germination method to test the sensitivity of the isolates to fungicide triadimefon. Seven relatively triadimefon-sensitive isolates and six relatively triadimefon-resistant isolates were further tested for sensitivity to fungicides carbendazim, mancozeb, thiophanate-methyl, and kresoxim-methyl. The results showed that the mean concentration for 50% of maximal effect of the isolates to triadimefon was 16.14 mg·liter-1, and the mean resistance factor was 4.48. Only 29 isolates were resistant to triadimefon in which 27 isolates had low levels of resistance and 2 isolates had moderate levels of resistance. However, most of the 89 isolates had no resistance to triadimefon. There was a positive correlation between resistance to triadimefon and carbendazim, but there was no cross-resistance between triadimefon resistance with thiophanate-methyl or kresoxim-methyl resistance. This study provides valuable information for managing fungicide resistant isolates of P. graminis f. sp. tritici." |
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| Language: | English |
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| References: | 20 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wu, X., Q. Bian, Q. Lin, Q. Sun, X. Ni, X. Xu, et al. 2020. Sensitivity of Puccinia graminis f. sp. tritici isolates from China to triadimefon and cross-resistance against diverse fungicides. Plant Disease. 104(8):p. 2082-2085. |
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| DOI: 10.1094/PDIS-01-20-0009-RE |
| Web URL(s):
https://apsjournals.apsnet.org/doi/full/10.1094/PDIS-01-20-0009-RE
Last checked: 01/29/2021
Access conditions: Item is within a limited-access website
https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-11-19-2473-SR
Last checked: 01/29/2021
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2191617 |
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