Phosphate Uptake and its Incorporation in Some Crop Plants and their Associated Weeds

Abstract

Phosphate uptake rate and its incorporation into the foliar organ of four crop plants, viz. pearl millet, pigeon pea, wheat, and gram, and six weeds Cyperus rotundus, Chenopodium album, Asphodelus tenuifolius, Anagallis arvensis, Vicia hirsuta, and Euphorbia dracunculoides were studied with the help of P32. It is concluded that phosphate uptake and its incorporation into the leaves depend on age and species of plant. Rate of phosphate uptake increases in all species as they proceed towards maturity but the incorporation of phosphate is maximum during early stages of growth