01172naa a2200205 a 450000100080000000500110000800800410001910000170006024501350007726000090021252005360022165000130075765000230077065000100079365300240080365300210082770000180084870000160086677300840088214178501993-10-01       1972    bl ---       0--  u    #d1 aGOMEZ, J. B.  aSome structural factors affecting the productivity of Hevea brasiliensisbI Quantitative determination of the laticiferous tissue.  c1972  aFactors affecting the determination of the quantity of the laticiferous tissue in Hevea are examined. The number of latex vessel rings, although a simple measure, does not adequately represent the quantity of the laticiferous tissue involved in the exploiration of the tree. The type of planting material, age of tissue and height of sampling influence the distribution and density of latex vessel rings and the density and diameter of latex vessels. The efficiency of exploitation is examined from these structural considerations.  aBorracha  aHevea Brasiliensis  aLatex  aBorracha - producao  avasos lactiferos1 aNARAYANAN, R.1 aCHEN, K. T.  tJournal of the Rubber Research Institute of Malayagv.23, n.3, p.193-203, 1972.