Comprehensive evaluation of native hemp populations using wood anatomy and stem fiber biometry characteristics towards producing fibers

Document Type : Research Paper

Authors

1 Ph.D. Student of Agricultural Biotechnology, Department of Biotechnology, Faculty of Agricultural Sciences and Engineering, University of Tehran, Karaj, I.R. Iran

2 Prof., Department of Reclamation of Arid and Mountainous Regions, Faculty of Natural Resources, University of Tehran, Karaj, I.R. Iran

3 Prof., Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj, I.R. Iran

4 Assoc. Prof., Department of Horticultural Sciences and Landscape Engineering, Faculty of Agricultural Sciences and Engineering, University of Tehran, Karaj, I.R. Iran

Abstract

In order to use alternative sources of fiber such as hemp to supply the paper and wood fiber, the exploration and utilization of abundant hemp variations seems to be necessary. In this study, some hemp populations collected from different part of Iran were evaluated with reference to wood anatomy and fiber biometry characteristics. Vessel characteristics of stems including average vessel lumen area, vessel density and porosity were measured using cross-sectioned tissues of stems. Fiber biometry characteristics of fibers including fiber length, fiber width, fiber cell wall thickness and fiber lumen width were measured and compared using macerated bast and core fibers. In conclusion based on vessel characteristics, Frs, San 02, Mahb, Zah and Mahl, populations, are expected to be putative high potential fiber populations, due to hav the least vessel density and porosity leading to more woody core fiber content. Regarding The fiber length, populations of Ban, Bsh, Frs and Kash, Bsh and Nhv, showed higher average for bast and woody cores, respectively. Hence these populations are expected to perform better in properties related to fiber length such as textile and paper strength and can be successfully used in paper making, fiberboard and textile industries as well as being used in selective breeding programs. In addition, all populations were evaluated based on their bast and wood fiber width, fiber cell wall thickness and fiber lumen width as effective factors on final product properties.

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