The charge in several physiological and nutritional parameter were investigated in relation to the Spontaneous development of tapping panel dryness in clone PB 260.These parameter were monitored at regular intervals on sixty core tree over of period of twenty-three month s Dryness developed in the several trees irrespective of their initial latex yield. Among the latex physiological parameters studied. Significant difference between dry and normal trees were recorded for four parameters VIZ bottom fraction volume. Inorganic phosphorus, Proline and free magnesium However, detailed examination of these parameters preceding onset of partial dryness on the cut affected trees did not show any distinct pattern or trend that could serve as a consistent and reliable early warning of the impending onset of dryness . Charges in the concentration of macro-and micro- nutrient in both latex and bark tissue did not show marked difference between normal and dryness trees, but a significant increase in tylosis was recorded in latex vessels of dry tree.