Interactions between aluminium, magnesium and calcium with different monocotyledonous and dicotyledonous plant species

Growth inhibition of plants suffering from Al toxicity is generally accompanied by impaired root development which can be quantitatively described by reduced specific root length (m g⁻¹ dry root). In addition, the uptake of nutrients such as Mg and Ca is inhibited. Increased supply of either Mg or C...

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Bibliographic Details
Published in:Plant and soil 1993-10, Vol.155 (1), p.485-488
Main Authors: Keltjens, W.G. (Landbouwuniversiteit Wageningen (Netherlands). Vakgroep Bodemkunde en Plantevoeding), Tan, K
Format: Article
Language:English
Subjects:
ALUMINIO
ALUMINIUM
Aluminum
CALCIO
CALCIUM
DICOTILEDONEAS
DICOTYLEDONE
DICOTYLEDONS
Dry matter accumulation
FITOTOXICIDAD
MAGNESIO
MAGNESIUM
MONOCOTILEDONEAS
MONOCOTYLEDONE
MONOCOTYLEDONS
NUTRICION DE LAS PLANTAS
Nutrient solutions
Nutrition
NUTRITION DES PLANTES
PHYTOTOXICITE
PHYTOTOXICITY
PLANT NUTRITION
Plant roots
Plants
Root growth
Sectie Bodemkwaliteit
Sub-department of Soil Quality
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Summary:Growth inhibition of plants suffering from Al toxicity is generally accompanied by impaired root development which can be quantitatively described by reduced specific root length (m g⁻¹ dry root). In addition, the uptake of nutrients such as Mg and Ca is inhibited. Increased supply of either Mg or Ca can significantly diminish the negative effect of Al on root development and improve the Mg or Ca nutrition of the plants. The positive effect of Ca is well established but the effect of Mg has been observed in only a few plant species. Therefore, the effects of increasing Mg and Ca supply on Al toxicity in plants of seven monocots and eight dicots have been now examined in nutrient solution experiments. In general, Mg appears to be more effective than Ca in alleviating Al toxicity with the monocots, whereas the reverse is true for the dicots. Increased concentrations of Mg and Ca in solution seem to protect the plants against Al toxicity by improving the Mg or Ca nutrition and by alleviating the toxic effect of Al on root development.
ISSN:0032-079X
1573-5036
DOI:10.1007/BF00025089