Aluminium Phytotoxicity and Plant Acclimation to Acidic Soils
نویسندگان
چکیده
منابع مشابه
Potential Solid Phases Controlling Dissolved Aluminium and Iron Concentrations In Acidic Soils
Acidic soils often have high concentrations of dissolved aluminium (Al) and iron (Fe) in their solutions. The objective of this study was to determine potential solid phases controlling dissolved A1 and Fe concentrations in pyritic (FeS2) soils undergoing oxidation.. Soil samples were extracted with distilled-deionised H20 after reacting for 14,21 and 28 days (d) at 25fl"C. Soil water extracts ...
متن کاملCrop production on acidic soils: overcoming aluminium toxicity and phosphorus deficiency.
Approximately 30 % of the world’s total land area consists of acid soils, and it has been estimated that over 50 % of the world’s potential arable lands are acidic (von Uexküll and Mutert, 1995). Aluminium (Al) in these soils will be solubilized into ionic forms, especially when the soil pH falls to lower than 5. These ionic forms of Al have been shown to be very toxic to plants, initially caus...
متن کاملRoot adaptations to soils with low fertility and aluminium toxicity
BACKGROUND Plants depend on their root systems to acquire the water and nutrients necessary for their survival in nature, and for their yield and nutritional quality in agriculture. Root systems are complex and a variety of root phenes have been identified as contributors to adaptation to soils with low fertility and aluminium (Al) toxicity. Phenotypic characterization of root adaptations to in...
متن کاملDoes Aluminium Phytotoxicity Induce Oxidative Stress in Greengram (vigna Radiata)?
To verify whether aluminium phytotoxicity causes oxidative stress in developing greengram seedlings, the present investigation was carried out. An uniform decrease in root and shoot elongations was marked as the primary signs of aluminium injury. A significant increase in lipid peroxidation measured in terms of TBARS content was noticed which was also correlated with an increase in membrane inj...
متن کاملOrganic acids of crop plants in aluminium detoxification
Phytotoxicity of aluminium is one of the most serious problems in limiting plant growth in acidic soils. A number of plant species exhibit inheritable aluminium tolerance by the secretion of organic acids which is highly specific to aluminium stress and localized to the root apices. Organic acids have been considered to play an important role in the detoxification of aluminium, both externally ...
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ژورنال
عنوان ژورنال: International Journal of Agricultural Research
سال: 2011
ISSN: 1816-4897
DOI: 10.3923/ijar.2011.194.208