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ChemInform Abstract: Allelopathic Studies in Cultivar Species. Part 9. Bioactive Flavonoids from Helianthus annuus Cultivars.
Abstract
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ChemInform Abstract
Tambulin (I), kukulkanin B (IIa), and heliannones A (IIb), B (IIIa) and C (IIIb) are isolated from fresh leaves of title sunflower. Their structures are confirmed by mass fragmentation. They influence the shoot growth of seedlings, but germination and radical length can be effected by chalcones (IIa) and (IIb).
