Daniela VALKOVA, Nina NENOVA, Galin GEORGIEV, Valentina ENCHEVA, Emil PENCHEV, Julia ENCHEVA

Seed Component Diversity of Hybrid Forms, Originated from Wild Helianthus Species

Anahtar Kelimeler:

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Seed Component Diversity of Hybrid Forms, Originated from Wild Helianthus Species

This study presents the evaluation of hybrid forms, obtained as a result of interspecific hybridization between four sunflower inbred lines and wild annual H. debilis and H. petiolaris accessions from the collection of wild Helianthus species at Dobrudzha Agricultural Institute, on various indices related to their seed oil and protein content. The selected accessions, used as paternal parents in the crosses and the obtained hybrid material, were previously tested and evaluated as resistant to leaves pathogens. The indices 1000 seed weight (g), kernel and hull (%), oil content in kernel (%) and in seed (%), and seed protein content were evaluated. The results showed very good statistical authenticity of the analytical hypothesis that the investigated hybrid forms were with different genetic potential on the studied indices, pointing to the existence of high variability among the used wild germplasm. Hybrid forms, resistant to leaves pathogens, with high oil and protein content were obtained

Keywords:

interspecific hybridization, Helianthus debilis, Helianthus petiolaris, seed oil content seed protein content,

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Christov, M. 1990. Study of the Wild Species of the Genus Helianthus to Use them in Sunflower Breeding. PhD. Thesis
Dorrell, D.G. and Whelan, E.D.P., 1978. Chemical and morphological characteristics of seeds of some sunflower species. Crop Sci. 18:969- 971.
Encheva V., D. Valkova. 2012. Testing results of hybrid material obtained with participation of wild annual Helianthus annuus species to the cause agent of brown spots Alternaria species. Agricultural science, Т.45 (3), рр.29- 34.
Encheva V., D. Valkova, G. Georgiev, M. Christov. 2012. Sources for resistance to the leaves pathogens helianthi), brown ( Alternaria sp.) and black ( Phoma macdonaldi) spots on sunflower originated from the wild species Helianthus annuus L., Proc. 18th ISC-Mar del Plata, February 27-March 1, 2012, Argentina, p.205-210. (Phomopsis
Hladni N., Miklič V. 2012. Old and New Trends of Using Genetic Resources in Sunflower Plant Breeding With The Aim of Preserving Biodiversity. Proc. Int. Conf. on BioScience: Biotechnology and Biodiversity“,Novi Sad, Serbia.
Ivanov, P. and F. Tsvetkova. 1984. Protein quantity and quality in some wild sunflower species. Genetika I Selektsiya 17(2):87-94.
Nikolova, V. 1987. Study of the opportunities for breeding of sunflower with different fatty acid content. PhD. Thesis, Sofia. 220 p.
Rushkovski, S.V. 1957. Metodi izsledvanii rpi selekcii maslecnah rastenii na soderganie masla i evo kacestva. Pishtepromizdat 83-88.
Seiler, G. J. 1992. Utilization of wild sunflower species for the improvement of cultivated sunflower. Field Crops Research, 30: 195- 230.
Seiler G. J. 1994. Oil concentration and fatty acid of composition achenes of North Helianthus (Asteraceae)
Seiler, G. J., T.J. Gulya. 2004. Exploration for wild Helianthus species in North America: Challenges and opportunities in the search for global treasures. Proc. 16th Int. Sunflower Conf., USA, vol.I:43-68.
Skoric, D., 1992. Results obtained and future directions of wild species use in sunflower breeding. Proc. of the 13th Inter. Sunfl. Conf., Pisa, Italy, p. 1317-1348.
Thompson, T.E., D.C. Zimmerman, and C.E. Rogers. 1981. Wild Helianthus as a genetic resource. Field Crops Res. 4:333–343.