Efficacy of some plant resistance inducers against several sunflower downy mildew (Plasmopara halstedii (Farl.) Berl. et de Toni) isolates

Plasmopara halstedii (Farl.) Berl. et de Toni is the oomycete that causes sunflower downy mildew (SDM). Traditional means of controlling this pathogen are using resistant hybrids, crop rotation and seed coating with fungicides. Disease control strategies that use a variety of approaches are becoming...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Alrashid Yousif Ahmed Ibrahim
Almuslimawi Alaa
Turóczi György
Kiss József
Kovács Attila
Körösi Katalin
Dokumentumtípus: Cikk
Megjelent: University of Szeged Szeged 2023
Sorozat:Acta biologica Szegediensis 67 No. 1
Kulcsszavak:Növénykórtan - napraforgó, Növényvédelem - biológiai, Biotechnológia - növények
Tárgyszavak:
doi:10.14232/abs.2023.1.75-86

Online Access:http://acta.bibl.u-szeged.hu/86940
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245 1 0 |a Efficacy of some plant resistance inducers against several sunflower downy mildew (Plasmopara halstedii (Farl.) Berl. et de Toni) isolates  |h [elektronikus dokumentum] /  |c  Alrashid Yousif Ahmed Ibrahim 
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490 0 |a Acta biologica Szegediensis  |v 67 No. 1 
520 3 |a Plasmopara halstedii (Farl.) Berl. et de Toni is the oomycete that causes sunflower downy mildew (SDM). Traditional means of controlling this pathogen are using resistant hybrids, crop rotation and seed coating with fungicides. Disease control strategies that use a variety of approaches are becoming an increasingly essential aspect of pest management strategies. We conducted this exploratory investigation to evaluate whether specific plant resistance inducers might work against P. halstedii. In this study we used azadirachtin (AZA) a botanical insecticide; benzothiadiazole (BTH) and Trichoderma asperellum. Three-day-old susceptible sunflower seedlings were pre-treated with different doses of inducers for two hours. The seedlings were immediately inoculated of 7 different pathotype of P. halstedii. As a control, metalaxyl-M a systemic fungicide was used. Nine-day-old sunflower plant leaves were sprayed with bidistilled water to stimulate sporangial growth. In vivo experiments showed that BTH, T. asperellum and the highest doses of AZA significantly reduced downy mildew symptoms. The various pathotypes of the pathogen significantly affected the plant height and disease symptoms under experiments. 
650 4 |a Természettudományok 
650 4 |a Biológiai tudományok 
650 4 |a Mezőgazdaság-tudományok 
650 4 |a Mezőgazdaság, erdészet, halászat 
695 |a Növénykórtan - napraforgó, Növényvédelem - biológiai, Biotechnológia - növények 
700 0 1 |a Almuslimawi Alaa  |e aut 
700 0 1 |a Turóczi György  |e aut 
700 0 1 |a Kiss József  |e aut 
700 0 1 |a Kovács Attila  |e aut 
700 0 1 |a Körösi Katalin  |e aut 
856 4 0 |u http://acta.bibl.u-szeged.hu/86940/1/biologica_067_numb_001_075-086.pdf  |z Dokumentum-elérés