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Effect of root feeding of heavy metals on the leaf concentration of P, K, Ca and Mg in coconut (Cocos nucifera L.)

C.C. BIDDAPPA, H.H. KHAN, O.P. JOSHI and P. MANIKANDAN
Plant and Soil
Vol. 101, No. 2 (1987), pp. 295-297
Published by: Springer
Stable URL: http://www.jstor.org/stable/42936729
Page Count: 3
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Effect of root feeding of heavy metals on the leaf concentration of P, K, Ca and Mg in coconut (Cocos nucifera L.)
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Abstract

The effect of supplying various metals viz. Pb, Cd, Al, Bi, Cr, Cu and Ba to the roots of coconut palms on the P, K, Ca and Mg concentration in the leaves of cocnut palms was investigated. The results showed that compared with the control the amount of leaf phosphorus was reduced by all the metals. The K concentration in the leaves was reduced by Al, Cd and Ba but increased by Bi and Cr. Leaf Ca concentration was decreased by Al and Pb treatments and increased by Cd, Cr and Ba. The amount of magnesium in the leaves was low in palms receiving the Al and the Cr but enhanced by Pb.

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