The effect of different NaCl concentration on germination and early growth of Hibiscus sabdariffa seedling

In order to consider impact of salinity stress on germination and early growth of Hibiscus sabdariffa seedling, we did an experiment in 2011 at Hamdard university laboratory in India which had been done in complete accidental plot with 3 times repetitions. Experimental treatment includes 4 levels of NaCl concentration (o, 50, 100 and 150 mM). Result showed that the most percentage and speed of germination, plumule length, radicle length and heaviest wet and dry seedling weight referred to control treatment. In 100 mM and more concentration, germination decreased significantly which in 150 mM, germination had been stopped also. This reduction in germination indicates this plant’s extreme insensitivity to salinity, so it isn’t advisable for cultivating in salinity soil. All the result data analyzed by SAS software and comparison of means had been done with Duncan test in 0.05% probable level.

salinity stress, germination, Hibiscus sabdariffa, NaCl.