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The objective of this work was to evaluate the germination of radish (Raphanus sativus) seeds submitted to different concentrations of NaCl. The experiment was conducted under laboratory conditions at the University Federal Rural Semi-Arid, Mossoro-RN. The experimental design was completely randomized with five saline treatments (0, 25, 50, 75 and100 mM NaCl) and four replicates of 25 seeds. The percentage of germination (% G), the first count (CF) the germination speed index (ISG), the mean germination time (TGM) and the end of the experiment, measured the length of the aerial part (PAL) and root (RL), as well as the dry weight of the aerial part (PAWD) and of the root (RWD). Was observed that only the% G and CF was not affected by the salinity and for the other variables, the concentration of 50 mM NaCl. The ISG and RL were reduced from the 50 mM NaCl concentration and to this concentration the values obtained in the PAWD and RWD were statistically similar to the salt-free plants. The radish shows tolerance to salinity up to the concentration of 50 mM NaCl.

GERMINAÇÃO DE Raphanus sativus SUBMETIDA A DIFERENTES CONCENTRAÇÕES DE NaCl