A phenetic analysis and lateral key of the genus Lolium (Gramineae)

Sarita Bennett

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    88 herbarium specimens of the genus Lolium were scored for 22 characters, comprising 7 vegetative, 8 inflorescence and 7 seed characters. The aim was to review the species relationship and to produce a lateral key to the genus. The data were analysed using principal components analysis, discriminant function analysis and cluster analysis. All analyses separated L. perenne, L. multiflorum and L. temulentum from each other. The 2 varieties of L. rigidum showed varying degrees of separation from each other and from L. multiflorum. Their distinction as a species and as 2 varieties is discussed. L. perenne and L. rigidum were shown to contain the greatest similarity between species and L. temulentum was found to be the most distinct. A lateral key is proposed that separates the species on the basis of 11 morphological characters that are easily scored in the field.
    Original languageEnglish
    Pages (from-to)63-72
    JournalGenetic Resources and Crop Evolution
    Volume44
    DOIs
    Publication statusPublished - 1997

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    Inflorescence
    Lolium
    Discriminant Analysis
    Poaceae
    Principal Component Analysis
    Cluster Analysis
    Seeds
    herbaria
    discriminant analysis
    cluster analysis
    principal component analysis
    inflorescences
    herbarium
    seeds
    seed
    analysis

    Cite this

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    abstract = "88 herbarium specimens of the genus Lolium were scored for 22 characters, comprising 7 vegetative, 8 inflorescence and 7 seed characters. The aim was to review the species relationship and to produce a lateral key to the genus. The data were analysed using principal components analysis, discriminant function analysis and cluster analysis. All analyses separated L. perenne, L. multiflorum and L. temulentum from each other. The 2 varieties of L. rigidum showed varying degrees of separation from each other and from L. multiflorum. Their distinction as a species and as 2 varieties is discussed. L. perenne and L. rigidum were shown to contain the greatest similarity between species and L. temulentum was found to be the most distinct. A lateral key is proposed that separates the species on the basis of 11 morphological characters that are easily scored in the field.",
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    A phenetic analysis and lateral key of the genus Lolium (Gramineae). / Bennett, Sarita.

    In: Genetic Resources and Crop Evolution, Vol. 44, 1997, p. 63-72.

    Research output: Contribution to journalArticle

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