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1	Geltonsėklių vasarinių rapsų (Brassica napus L.) kūrimas biotechnologiniais ir tradiciniais selekcijos metodais / Development of yellow-seeded rapeseed (Brassica napus L.) by biotechnological and cklassical breeding methods Kuprienė, Ramunė 21 November 2006 (has links) Genotypes of rapeseeds producing yellow seeds were not found in nature. Breeders yellow-seeded rapeseeds have been developed applying different combinations of interspecific crosses. In the Laboratory of Genetics-Biotechnology at the Lithuanian Agricultural University, yellow-seeded spring rapeseeds were developed for the first time without interspecific crosses (Burbulis, 2001). All cultivars of yellow-seeded rapeseed have one essential drawback – unblocking of pigmentation takes place in other generations and seeds of different colours (yellowish brown, brown or black) are formed. Breeders, working with the cultivars of yellow-seeded rapeseed, admit that environmental temperature is one of the factors limiting the manifestation of the trait. Agronomy Abipusiai kryžminimai Brassica napus Yellow-seeded rapeseed Geltonsėkliai rapsai Somatinė embriogenezė Reciprocal crosses Microspore culture Izoliuotų dulkinių kultūra Double haploids Anther culture Dvigubi haploidai Somatic embryogenesis Mikrosporų kultūra