[en] When barley varieties (Ratna, C-164 and Jyoti) were grown under identical conditions of soil and applied phosphatic fertilizer a difference in the proportion of P derived from the fertilizer in the plant (Pdff) was noticed. Ratna could utilize maximum and Jyoti the minimum proportion of P from the applied source. In a separate experiment F₁ hybrid obtained by crossing DL-70 and Ratna showed the percent Pdff very close to midparent value. (author)