Abstract
Germination is delayed in Junipers because of embriyo dormancy, and also in same cases by an impermable seedcoat, or inhibitors in the cone and seedcoat. There are a lot of non-viable or nongerminating seeds of the species like the other juniper species. Low rates of germination in a number of species are due to a large propartion of non-viable or nongerminating seed. Non-viable seed may be hollow, damaged, or immature. In this study, after the process extraction the seeds from the cones and seperation of the empty, damaged, and immature seeds, the remain full seeds has been sown to find out the effects of different sowing times on germination percent under the nursery conditions. For this reason, ten different sowing times have been applied in thirty days intervals. Germination date on sowing times were analyzed using JMP statistical software. Results of the ANOVA and LSD showed that the most suitable sowing time and greatest germination was July (62.5 %) and August (61.3 %) for mountain juniper, August (73.0 %) for small fruited juniper, July (51.8 %) and August (50.8 %) for savin juniper.
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