Investigation on Anatomical and Physical Characteristics of persimmon Diospyros lotus(L.) from two location of Gilan and Mazanderan.
2008
Gol Babaei, Fardad | Kargar Fard, Abu Al-Fazl | Familiyan, Hassan | Salehi, Kamyar | Hossein Khani, Hossein | Fakhriyan, A`bbas | Habibi, Mas`ud Reza
Persimmon, which was planted in Pelembera(Gilan) and Sangdeh (Mazandran) region, shows promising both in growth rate and adaptability. Even though the fiber geometry of Diospyros lotus(L.) wood in its native growth region is excellent, but for utilization of this wood in pulping, the knowledge of its technological characteristics especially fiber geometry is required. Two trees of this species were randomly selected from Pelembera and Sangdeh forests plantation in Gilan and Mazanderan after felling were cut in smaller bolts and transferred to wood and paper research laboratory, research institute of forests and rangelands. Five crosssections with the thickness of 15 cm were cut from each tree and the cross-sections were used for selection of samples. Fiber geometry measurement samples were prepared from every five annual. Preparations of fiber geometry samples were according to procedure developed by Franklin (1954) and from each sample the dimension of 30 complete and unbroken trachieds was measured. Fiber length, diameter, cell wall thickness and lumen diameter was measured for different elevation in tree and different growth rings in cross- section. Average Fiber length, diameter, lumen diameter and cell wall thickness were measured at 1.173mm, 21.85 µm, 12.96 µm and 3.88 µm respectively. Felting, flexibility and runkel coefficients were calculated at 52.62, 55.47, and 35.37 respectively. The result of this study indicates that all measured properties increases with increasing the height of tree and from center (pith) toward outer regions (bark). However all the measured values decreased at highest as well as outer locations. Statistical analysis indicated that the difference in measured properties at different heights of trees to from center and bark is significantly different at 1% level.
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