Plant Varieties as Indicator of Aluminum Toxicity in the A2 Horizon of a Norfolk Soil
1970
Long, F Leslie | Foy, Charles D.
Two varieties of barley (Hordeum vulgare, L., emend, Lam.) and two varieties of snapbeans (Phaseolus vulgaris, L.), known to differ widely in their tolerance to aluminum, were used as biological indicators of aluminum toxicity in the A₂ horizon of an acid Norfolk soil (pH 5.2). Both top and root growth of the indicator varieties supported the conclusion that aluminum toxicity is an important growth-limiting factor in the Norfolk soil studied. Leaf rolling observed in aluminum-sensitive ‘Kearney’ barley (but not in aluminum-tolerant ‘Dayton’) grown on the unlimed soil, was attributed to aluminum induced calcium deficiency.
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