Abstract
This experiment was conducted in (Zawita) area in Dohuk governorate / Iraq, and the morphological characteristics were studied by selecting four sites, four trees from each site, four sectors and, choosing twenty trees in each sector. Statistical analysis (RCBD) was done using the SPSS system. Through this study, it was found that Pinus brutia Ten. In Zawita, there is a clear effect on some morphological characteristics of the seedlings resulting from it. The first site was one of the best sites followed by the second site where he gave seedlings of good quality in terms of stem length with an average of 39.25 cm and the total weight of wet and dry seedlings with averages of 13.97 and 35.34 g respectively, and the third site was the lowest studied sites and gave seedlings of less quality than the rest of the sites where he scored Stem length averaged 23.06 cm while wet and dry weight was 7.68 and 22.17 g, respectively. As for the correlation between the variables, the relationship was positive and strong among all the variables except those between the length of the root and the rest of the variables except with the characteristic of the wet root weight. The highest correlation values were between total dry weight and total wet weight recording 0.960 and the lowest between the length of the root and the dry vegetative weight where the value was 0.070.
Highlights
The natural forests in Iraq cover an area estimated at (7110400) acres whose lands are spread in the northern and northeastern mountainous regions
As shown on the map (1), four sites were identified in the Zawita Forest in Dohuk Governorate, which contains Pinus brutia Ten trees known as the Pine Zawitas in August (2010)
In March (2013), measurements were made on seedlings and stem length/cm, root length/cm, wet stem length/gm, wet stem weight/gm, wet root weight/gm, dry seedling weight/gm, and these measurements were performed on 20 seedlings per treatment using the global experiment with complete random design with four replications for four trees in four sites and Dunkin method was used at the probability level 0.05 to compare rates using the SPSS system (Ver. 24)
Summary
The natural forests in Iraq cover an area estimated at (7110400) acres whose lands are spread in the northern and northeastern mountainous regions. The researcher [2], was interested in studying the relationship between the nature of the terrain (site variation) and the effect of that on conifers vegetation, as well as knowing the relationship of terrain to climate, as this information is important for forest departments to contribute to making important decisions, including reforestation of this species of trees in that region.
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