Document Type : Original Article


Agriculture-jahad organization Markazi province, Arak, Iran


Salinity stands as one of the major abiotic stresses impacting seed germination and plant establishment in arid and semiarid regions. To explore the effects of hydropriming on Atriplex seed germination components under salinity stress, an experiment was conducted following a completely randomized factorial design with three replications. The experiment involved hydropriming at four levels (0, 1, 2, and 4 days) and salinity at five levels (0, 100, 200, 400, and 600 mM). The findings indicate that salinity stress significantly reduced Atriplex seed germination. However, several germination components, such as germination percentage and rate, seed vigor index, and root length, did not significantly differ compared to the control treatment at the salinity level of 100 mM. The treatment with 600 mM salinity yielded the lowest percentage (1.2%) and rate (0.04 germinations/day) of germination, as well as the shortest root length (0.0083 cm) and shoot length (0.025 cm), alongside the lowest seed vigor index. Hydropriming treatment notably enhanced Atriplex seed germination, with increasing durations of hydropriming correlating to higher germination percentages and rates. The treatments with 0 and 4 days of hydropriming yielded the minimum and maximum germination percentages, respectively. Given that untreated seeds and short-term hydropriming led to limited germination, it appears that applying this treatment is essential for Atriplex seed germination under salinity stress conditions.


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