| Sumario: | The aim of this wok ass to study absorption and translocation of phosphorus np ¡n sesame (Sesamum indicum, L) For this to be done the plants were allowed to absorb P, which was added to the nutrient solution containing different relations K/Mg The roots, shoots and aerial parts were analyzed for *P after absorption time of 15, 30, 60 and 120 minutes. The results indicated that the nutrient solution with K/Mg relations in the order 1,51, 3.1; 61, 02 and 6.0 presented decrease in the level of radioactivity in the aerial pat. In the roots the level of radioactivity increased in the order velation K/Mg in the nutrition solution of 60; 31: 6 1,1,51 and 02
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