EFFECT OF ALUMINIUM STRESS ON THE BIOCHEMICAL CONSITITUENTS DURING EARLY SEEDLING GROWTH OF MUSTARD

Studies were carried out to evanuate the effect of various concentrations (25, 50, 100, 200, 400 and 800 ug/ml) of different aluminium species on the biochemical constituents during seedling growth of mustard. The aluminium species chosen were AICl3,Al(NO3)3, and Al2(SO4)3. The first observable effect on plant was a limitation in root growth. Higher concentrations (beyond 100 ug/ml) resulted in the death of plants while concentrations ranging from 25 to 100 ug/ml resulted in a decrease in chlorophyll contents but an increase in soluble proteins and total phenol contents. The toxicity series was found to be AICl3> Al2(SO4)3 >Al(NO3)3.

 

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