Studies on shoot regeneration of lupins (Lupinus spp.).

Tests have been made to regenerate plants from different lupin species using leaf, leaf petiole and hypocotyl tissue of L. polyphyllus, L. hartwegii, L. angustifolius and L. luteus. Callus induction rates have been high with all plant parts from all tested lupin species. Regeneration success has been rather limited. One plant could be regenerated from hypocotyl material of L. polyphyllus. Only shoots appeared when using leaf explants from L. luteus or L. hartwegii as well as from leaf petiole tissue of L. hartwegii. With L. angustifolius one regeneration of unknown character occurred.