Evaluation of wild Helianthus germplasm for resistance to highly virulent races of Orobanche cernua Loefl. and transfer to cultivated sunflower.

  1. Sukno, S 1
  2. Ruso, J 1
  3. Melero-Vara, J 1
  4. Fernandez-Martínes, J 1
  1. 1 Instituto de Agricultura Sostenible
    info

    Instituto de Agricultura Sostenible

    Córdoba, España

    ROR https://ror.org/039vw4178

Actas:
Advances in Parasitic Plant Research
  1. Mª Teresa Moreno (coord.)
  2. José Ignacio Cubero (coord.)

Editorial: Junta de Andalucia. Consejería de Agricultura y Pesca

ISBN: 84-87564-43-7

Año de publicación: 1996

Volumen: 36/38

Páginas: 626-632

Congreso: Sixth International Parasitic Weed Simposium, Palacio de Congresos y Exposiciones, Córdoba (Spain), april 16,17,18, 1996

Tipo: Aportación congreso

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Resumen

Twenty six different wild perennial species of sunflower and 16 wild annual species were evaluated for susceptibility to a virulent population of Orobanche cernua under artificial conditions. Most perennial wild species except H. gracilentus and H. nuttallii were immine to Orobanche. Wild annual species were susceptible except H. agrestis, H. anomalus and H. exilis, which showed a resistant reaction. On the basis of these results, we made crosses between H. exilis, a resitat annual sunflower species, and susceptible cultivated lines, as well as with the latter and resistant line carrying the resistance gene Or5, which in used in the production of hybrids in Spain. Current work is aimed to determine which resistance genes are present in these species.