Helia 2009 Volume 32, Issue 51, Pages: 65-73
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Wild species of Helianthus L.: Sources of resistance to the parasite Orobanche cumana Wallr.
Christov M., Batchvarova R., Hristova-Cherbadzhi M.
Accessions from different Helianthus species, cultivated sunflower forms and interspecific hybrid forms and lines were included in this investigation. It was established that broomrape resistance was transferred from 11 perennial Helianthus species to interspecific hybrids developed on the basis of new sunflower lines. Some of the new lines possessed other desirable agronomical characters, which could be successfully transferred to new sunflower hybrid cultivars. Differences were observed in the origin of broomrapes found in different locations of northern Bulgaria. Diverse origin of some of the obtained sunflower forms was confirmed using the RAPD analysis.
Keywords: Helianthus, interspecific hybrids, resistance, Orobanchecumana Wallr., RAPD analysis, random decamer primers
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