caa a22 4500 378916912 CHVBK 20180305123555.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.2298/hel0441129j doi (NATIONALLICENCE)gruyter-10.2298/hel0441129j TESTING TWO ISOLATES OF Diaporthe/Phomopsis helianthi IN A POPULATION OF SUNFLOWER RECOMBINANT INBRED LINES [Elektronische Daten] PRUEBA DE DOS AISLADOS DEL HONGO Diaporthe/ Phomopsis helianthi EN POBLACIÓN DE LAS LÍNEAS CONSANGUÍNEAS (INBRED) RECOMBINANTES DE GIRASOL / EXAMEN DE DEUX ISOLATS DE CHAMPIGNONS Diaporthe/Phomopsis helianthi DANS UNE POPULATION DE LIGNÉES DE TOURNESOL RECOMBINANTES / [S. Jocić, N. Lačok, V. Miklić, D. Škorić, Y. Griveau] Development of new, more aggressive isolates of Phomopsis helianthi in Serbia and Montenegro has been investigated. Two isolates of Phomopsis helianthi, Yu 4 and Yu 12, had been found on the stem of NS-H-45, a highly tolerant sunflower hybrid. The isolate Yu 4 was isolated in the northern part of the Vojvodina Province, a region where Phomopsis typically occurs. The isolate Yu 12 comes from the southern part of the Vojvodina Province, a region along the Danube River, which suffered an intensive outbreak of Phomopsis in 1997. A preliminary study of the isolates showed that these two isolates were significantly different for radial growth in Petri dish. A test was thus made with recombinant inbred lines in the F9 generation developed from the cross of LR- 4-17 (inbred line with high tolerance to Phomopsis) and HA-89 (susceptible inbred line). Experiments were conducted in the greenhouse, inoculating plant leaf tips with the mycelium of the fungus. The test showed that there were no significant differences between the two isolates, Yu 4 and Yu 12. It was concluded that the intensive attack recorded in 1997 along the Danube River occurred due to exceptionally favorable environmental conditions for the development of the disease. This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. sunflower nationallicence Diaporthe/Phomopsis helianthi nationallicence recombinant inbred lines nationallicence Jocić S. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro, Phone: +381 21 4898 403, Fax: +381 21 413 833 aut Lačok N. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro aut Miklić V. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro aut Škorić D. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro aut Griveau Y. INRA UMR Diversite et Genome des Plantes Cultivees, Domaine de Melgueil, F-34130, Mauguio, France aut HELIA De Gruyter 27/41(2004-12-01), 129-136 1018-1806 27:41<129 2004 27 helia https://doi.org/10.2298/hel0441129j text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.2298/hel0441129j text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jocić S. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro, Phone: +381 21 4898 403, Fax: +381 21 413 833 aut NATIONALLICENCE 700 1- Lačok N. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro aut NATIONALLICENCE 700 1- Miklić V. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro aut NATIONALLICENCE 700 1- Škorić D. Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia and Montenegro aut NATIONALLICENCE 700 1- Griveau Y. INRA UMR Diversite et Genome des Plantes Cultivees, Domaine de Melgueil, F-34130, Mauguio, France aut NATIONALLICENCE 773 0- HELIA De Gruyter 27/41(2004-12-01), 129-136 1018-1806 27:41<129 2004 27 helia CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter