Mineral-element composition of Lupinus albus and Lupinus angustifolius in relation to manganese accumulation
1981
Reay, P.F. | Waugh, C. (Applied Biochemistry Div. DSIR, Palmerston North (New Zealand))
Lupinus albus and L. angustifolius were grown in the field, harvested prior to leaf fall and the Ca, Mg, Na, K, Fe, Mn, Zn, Cu, P and Si content of the leaflets, petioles, stems, young shoots and inflorescences determined. Element levels in L. albus parts had changed little from those at an earlier harvest, except in the inflorescences in which most element levels had decreased. Both species accumulated manganese; L. angustifolius only in the leaflets and L. albus in most parts. The leaflets of both were enriched with iron and this with manganese accumulation in a soil of neutral pH is considered to result from reducing conditions in the rhizosphere increasing their availability to the lupins. Silica, present at trace levels, is unlikely to be important for tolerance of lupins to manganese
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