Research article | Open Access
Helia 2003, Vol. 26(38) 99-108
DEVELOPING GENETIC VARIABILITY IN SUNFLOWER (Helianthus annuus L.) BY COMBINED USE OF HYBRIDIZATION WITH GAMMA RADIATION OR ULTRASOUND
Julia Encheva, Michail Christov, Neno Nenov, Fota Tsvetkova, Peter Ivanov, Pepa Shindrova & Valentina Encheva