Differential of Spikelet Type in Avena in Relation to the Ploidy
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Wild type (abb. W type): All hulled florets separate from their pedicels or one another when mature, as in A.fatua. Included 7 species.
Subwild type (S type): Spikelets separate from their pedicels but all hulled florets remain attached, as in A.sterilis. Included 5 species.
Cultivated type (C type): Spikelets and all hulled florets remian attached to their pedicels or each other, as in A.sativa. Included 3 species.
Naked type (N type): Spikelet and all hull-less florets remain attached. The spikelet is always multiflorous and the rachilla segment is elongated, as in A.nuda(6x) and A.nudibrevis(2x).
KeywordsPlant Physiology Chromosome Pairing Osaka Prefecture Compound Gene Research Inst
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