Identifying of sunflower genotype resistant/tolerant to races of broomrape present in Braila area, Romania
Florin Gabriel Anton2 • Maria Păcureanu Joiţa1 • Luxiţa Rîşnoveanu3,4 • Elisabeta Sava5
1National Agricultural Research and Development Institute, Fundulea, 1 Nicolae Titulescu, Fundulea, Calarasi County, Romania
2Faculty of Biotehnology, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăşti Blvd, District 1, Bucharest, Romania
3Agricultural Research Development Station Braila, Viziru km. 9 street, Braila, Braila County, Romania
4„Dunarea de Jos” University of Galati, Engineering and Agronomy Faculty of Braila-Agronomy Center for Research and Consultancy and Environment „Lunca”, 29 Calarasi, Braila, Braila County, Romania
5The State Institute for Variety Testing and Registration, Bucharest, Romania
Резюме
It’s very dificult to control the parasite broomrape who is present in sunflower crop
in south–east of Romania with the most virulent races. Races of broomrape (Orobanche
cumana Wallr) is changes virulence from one year to another and that causes problems
to sunflower breeder in created new hybryds who metained the resistance/tolerance. For
identifying the new genotype of sunflower resistant more than races F (G, H, I....), we tested
many sunflower genotypes in artificial condition at Fundulea in years 2017 and 2018
from area Braila infested with broomrape, colected in years 2016 and 2017. Two genotype
of sunflower with free polination and one interspecific population derived from crosses of
Helianthus maximilianis with cultivated sunflower from NARDI Fundulea, was resistant to
all races of broomrape present in area Braila in both years. Throuht finding new resources
for resitance to broomrape, help us to increase the genetic variability of sunflower and to
obtained simple hybrids with hygh seed yield and oil content.
