Peculiarities of the genotype effect of cultivated and wild sunflower species on crossability indices and in vitro hybrid embryonic development have been investigated. It was shown that selection of initial material can considerably influence seed-setting and in vitro embryonic development in the cross group of cultivated sunflower with annual and perennial wild species. The range of plant hybrids obtained through somatic embryogenesis and induction of adventitious shoots was higher in comparison with direct growth of embryos in in vitro culture.
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