Investigation on The Effect of Sowing Date on Querqus Castaneifolia Seedlings in Nursery

According to importance of Querqus. castaneifolia in northern forests of Iran and its high value in reforestation and revival of destructed stands. In this research we studied the appropriate period of seed planting in nursery. For this aim the effect of sowing date on the quantitative and qualitative characteristic of Querqus castaneifolia seedlings, was studied with randomized design in two treatments with five replications. At the end of the first growth season, some quantitative and qualitative characteristic such as height, collar diameter and shoot/root length ratio and survival rate is studied and the data was analyzed by SPSS. Analysis of data showed that there is significant differences in most features between seedlings planted in autumn and early spring at 95% cofident level, Also, the autumn planted seedlings in comparison with spring planted seedlings had better physical characteristic and vitality. Although there isnt significant differences between number of roots in two treatments. The results showed that for producing resistant and strong seedlings with better quality, paying attention to ecological demand of each species and sowing in appropriate date is very important.