Influence of a seed treatment on the infection and development of the cereal cyst nematode 'Heterodera filipjevi' on susceptible and moderately resistant wheat germplasm
Material type:
TextPublication details: Wageningen (Netherlands) European Society of Nematologists : 2010Description: p. 229Summary: This study was carried out with a fungicide used as a seed coating for soil-borne pathogen control to determine its efficacy in reducing infection of the sedentary cereal cyst nematode Heterodera filipjevi on moderately resistant and susceptible winter wheat germplasm under the controlled conditions in ATEAM, Eskisehir, Turkey. The three different susceptible wheat germplasm (Seri, Bezostaya & Gerek) and three moderately resistant wheat germplasm (F130L 1.12/ ATTILA, Katea & Sonmez) were tested at different fungicide concentrations of 25 g ai/100 kg seed, 50 g ai/100 kg and 100 g ai/100 kg seeds. The fungicide was applied as standard seed coating used to control damping off fungi. The moderately resistant germplasm gave a significant reduction in nematode reproduction in terms of cyst number per root system when compared to the susceptible germplasm. A significant reduction in the number of H. filipjevi was observed on the susceptible germplasm (Seri and Bezostaya) when the seed was treated with the fungicide. Neither shoot height, shoot weight nor root length were significantly increased by the seed treatment when compared with control. The greatest increase in shoot height was detected on the fungicide treated and moderately resistant germplasm. No phytotoxicity symptoms were observed on the plant at any of the fungicide concentrations used. The results seem to show that the fungicide reduced plant susceptibility to H. filipjevi infection by mechanisms still to be identified.
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Abstract only
This study was carried out with a fungicide used as a seed coating for soil-borne pathogen control to determine its efficacy in reducing infection of the sedentary cereal cyst nematode Heterodera filipjevi on moderately resistant and susceptible winter wheat germplasm under the controlled conditions in ATEAM, Eskisehir, Turkey. The three different susceptible wheat germplasm (Seri, Bezostaya & Gerek) and three moderately resistant wheat germplasm (F130L 1.12/ ATTILA, Katea & Sonmez) were tested at different fungicide concentrations of 25 g ai/100 kg seed, 50 g ai/100 kg and 100 g ai/100 kg seeds. The fungicide was applied as standard seed coating used to control damping off fungi. The moderately resistant germplasm gave a significant reduction in nematode reproduction in terms of cyst number per root system when compared to the susceptible germplasm. A significant reduction in the number of H. filipjevi was observed on the susceptible germplasm (Seri and Bezostaya) when the seed was treated with the fungicide. Neither shoot height, shoot weight nor root length were significantly increased by the seed treatment when compared with control. The greatest increase in shoot height was detected on the fungicide treated and moderately resistant germplasm. No phytotoxicity symptoms were observed on the plant at any of the fungicide concentrations used. The results seem to show that the fungicide reduced plant susceptibility to H. filipjevi infection by mechanisms still to be identified.
Global Wheat Program
English
INT2918|INT2410
CIMMYT Staff Publications Collection
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