IMPROVING SUNFLOWER FOR RESISTANCE TO Orobanche AND TRIBENURON METHYL HERBICIDES - SUNFLOWER HYBRID PF100 / MEJORAMIENTO DEL GIRASOL POR RESISTENCIA A Orobanche Y A LOS HERBICIDAS METIL TRIBENURON – HÍBRIDO DE GIRASOL PF 100 / L'AMÉLIORATION DU TOURNESOL POUR LA RÉSISTANCE À l'Orobanche ET AUX SULFONYLURÉES (TRIBENURON METHYL) - HYBRIDE PF100 DE TOURNESOL
2014
Dicu, G. | Dumitrescu, N. | Radu, M. | State, D. | Fuia, S. | Diaconescu, O.
Procera Agrochemicals Romania is a company that has developed a program for sunflower breeding in 2004. One of the main goals of this improvement program was to obtain sunflower hybrids resistant to broomrape, in consequence of the fact that Romania has a constantly increasing incidence of soil-areas infested with this parasite. Sunflower hybrid PF100 is a semi-late hybrid that has genetic resistance to broomrape and it has also been genetically improved for resistance to sulfonylurea herbicides SURES-1 and SURES-2, for both male and female lines. PF100 has been tested in the Romanian official network of the State Institute for Variety Testing and Registration during last four years (2005-2008). The results recorded showed that the seed production varied from 2348 kg/ha (Timis County, 2005) to 4604 (Vaslui County, 2006) and the oil content in seeds was between 47 and 51%. In 2008, the highest seed yield of this hybrid (3700 kg/ha) was obtained in the demonstration plots established in Viziru, Braila County (a most heavily infested county in the country).
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