A study of the translocation of radioactive phosphorus in Loblolly Pine (Pinus taeda L.)

Moreland, D.E.

Journal of the Elisha Mitchell Scientific Society 66(2): 175-81


Accession: 013625876

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A study was made of the rates and paths of mineral-salt movement in Pinus faeda, using radioactive phosphorus P32 as a tracer. Rootlet tips were immersed in vials containing the phosphorus for periods up to 10 hr. The rootlet was then severed and the tree felled. Cross-sectional root and stem samples were taken and analysed. The results are tabulated. The highest translocation rate obtained for P32 in the lateral roots was 1.42 m. per hr.