Critical toxic concentrations of boron are variable in barley

M.M. Riley, Alan Robson, G.A. Dellar, J.W. Gartrell

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    The use of leaf symptoms and plant analysis in diagnosing and predicting yield depressions associated with boron (B) toxicity in barley was examined. Barley (Hordeum vulgare L., cv. Stirling) was grown in pots of a sandy soil to which six levels of B were added. With increasing additions to the soil, B accumulated in the older leaves, increasing leaf injury and senescence. Leaf injury symptoms at high levels of B supply appeared in time well before dry mailer was depressed. Root weight was decreased more than shoot weight. Grain filling was affected only at severe levels of B toxicity. Critical toxic concentrations (CTC) of B in shoots were found to vary between approximately 40 and 150 mu g, depending on the stage of plant growth at the lime of B analysis and the yield parameter chosen. A distinction is made between CTC values of B that are diagnostic or prognostic.
    Original languageEnglish
    Pages (from-to)1701-1719
    JournalJournal of Plant Nutrition
    Volume17
    DOIs
    Publication statusPublished - 1994

    Fingerprint

    Boron
    Poisons
    Hordeum
    boron
    barley
    Soil
    signs and symptoms (plants)
    Weights and Measures
    leaves
    Plant Leaves
    Wounds and Injuries
    toxicity
    shoots
    filling period
    Hordeum vulgare
    sandy soils
    plant growth
    Growth
    soil

    Cite this

    Riley, M.M. ; Robson, Alan ; Dellar, G.A. ; Gartrell, J.W. / Critical toxic concentrations of boron are variable in barley. In: Journal of Plant Nutrition. 1994 ; Vol. 17. pp. 1701-1719.
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    Critical toxic concentrations of boron are variable in barley. / Riley, M.M.; Robson, Alan; Dellar, G.A.; Gartrell, J.W.

    In: Journal of Plant Nutrition, Vol. 17, 1994, p. 1701-1719.

    Research output: Contribution to journalArticle

    TY - JOUR

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    AB - The use of leaf symptoms and plant analysis in diagnosing and predicting yield depressions associated with boron (B) toxicity in barley was examined. Barley (Hordeum vulgare L., cv. Stirling) was grown in pots of a sandy soil to which six levels of B were added. With increasing additions to the soil, B accumulated in the older leaves, increasing leaf injury and senescence. Leaf injury symptoms at high levels of B supply appeared in time well before dry mailer was depressed. Root weight was decreased more than shoot weight. Grain filling was affected only at severe levels of B toxicity. Critical toxic concentrations (CTC) of B in shoots were found to vary between approximately 40 and 150 mu g, depending on the stage of plant growth at the lime of B analysis and the yield parameter chosen. A distinction is made between CTC values of B that are diagnostic or prognostic.

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