Öz İn the radiai grüwtb inhibition of Linuın nsitatissimura L. The most important material deficient was N folîotved by P and Ca. The least deficient material was found to be Fe. There observed a correlation between the shoot growth and the radiai growth wben compared with the measured lengths of the plants. The phloem and X yleoı differentiation was found to be effeeted by deficiency of ali ions to different extent. The xylem forınation was effected most by the deficiency in P whi!e phloem formation was effected most by the deficiency in Ca and N. The deficiency of P effected the fiber formation most.