Version 1
: Received: 28 March 2024 / Approved: 28 March 2024 / Online: 29 March 2024 (03:58:43 CET)
How to cite:
Yang, J.; Zhang, J.; Zhang, W.; Addrah, M.E.; Liu, B.; Zhao, J. Isolation and Identification of New Pathogen Causing Sunflower Disk Rot in China. Preprints2024, 2024031786. https://doi.org/10.20944/preprints202403.1786.v1
Yang, J.; Zhang, J.; Zhang, W.; Addrah, M.E.; Liu, B.; Zhao, J. Isolation and Identification of New Pathogen Causing Sunflower Disk Rot in China. Preprints 2024, 2024031786. https://doi.org/10.20944/preprints202403.1786.v1
Yang, J.; Zhang, J.; Zhang, W.; Addrah, M.E.; Liu, B.; Zhao, J. Isolation and Identification of New Pathogen Causing Sunflower Disk Rot in China. Preprints2024, 2024031786. https://doi.org/10.20944/preprints202403.1786.v1
APA Style
Yang, J., Zhang, J., Zhang, W., Addrah, M.E., Liu, B., & Zhao, J. (2024). Isolation and Identification of New Pathogen Causing Sunflower Disk Rot in China. Preprints. https://doi.org/10.20944/preprints202403.1786.v1
Chicago/Turabian Style
Yang, J., Baoyu Liu and Jun Zhao. 2024 "Isolation and Identification of New Pathogen Causing Sunflower Disk Rot in China" Preprints. https://doi.org/10.20944/preprints202403.1786.v1
Abstract
Sunflower is one of the oil crops and its planting areas was listed behind Soybean, peanut and rapeseeds in China. It will encounter different kind of diseases during planting, thus limited the seeds yield. Fusarium species are the major threat to different crops nowadays, it is very important to identify the species caused diseases on different hosts, so that the potential control measures may be explored. In Inner mongolia, Sunflower Disk Rot (SDR) was found in different sunflower planting field, the average infection ratio around 8.50%, typically in some verieties, its infection ratio reach to 11.67%. The diseased receptacle were collected from different locations and Koch’s postulate was conducted. The results showed that Fusarium verticillioides was the main causal agent caused SDR. Fungicide toxicity tests shown that Fludioxonil and Flutolanil were screened out from six fungicides for controlling F. verticillioides, with EC50 values of 0.05 µg/mL (R = 0.9825) and 0.96 µg/mL (R = 0.9964) , respectively. This is the first report of SDR caused by F. verticillioides, and it will alert sunflower reseachers to include SDR in the disease list, so as to control sunflower diseases with integrated management strategy successfully.
Keywords
sunflower disk rot; Fusarium verticillioides; new pathogen; fungicide screenings
Subject
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
