Investigation on the effect of tree forms on characteristics of Quercus brantii (Quercus persica) seeds (Case study: Zagros forests, Gilane Gharb)

In order to investigate the effect of tree forms on characteristics of Quercus brantii, seeds of 60 trees (both tree forms: high and coppice trees) were collected and studied on north-facing slopes ranging from 1040 to 1960 m a.s.l in Gilane Gharb city, Iran. The results of analysis of variance showed that there is significant difference between two forms of trees regarding to number and weight of seed, unsound seed, canopy and height of trees. Analysis of correlation indicated that in high trees, 1000- seed weights had positive and significant correlation with number of seeds, weight of individual seeds, sound seeds, unsound seeds (p≤%1), and with germination (p ≤%5). In coppice trees, 1000-seed weights had positive and significant correlation with individual seed weight, sound seeds(p ≤%1), and unsound seed(p ≤%5), but they had no correlation with seed number and seed germination. The results of ANOVA showed that the difference between two forms was significant other than individual seed weights and 1000-seed weights. Therefore it would be better to collect seeds from high trees, use the seeds of trees grown in the same elevation (considering other affecting conditions) and from different areas to prepare seeds for seedlings and afforestation.