Cytological Study of Callus and Regenerated Plants of Sunflower (Helianthus annuusL.)

摘要

AbstractIn vitroculture of shoot apical meristems ofHelianthus annuuswas studied to determine the cytological condition of calli and regenerated shoots. A broad chromosome mosaicism (aneusomary) in bath callus and regenerated shoots was found, reflecting the cytological conditions of the explain. Duringin vitroplant development, a diplontic selection took place that was more rapid when very precociousin vitroflowering occurred.