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本文对筛选出的四个造纸用红麻品种韧皮、木质纤维细胞形态、化学成分、特殊化学成分以及品种超微结构进行了综合观测分析。结果ＺＧＲ１５品种的韧皮、木质纤维细胞长度最长，分别为２．７３５毫米、０．７５５毫米，比对照增长２．６１％、４．８６％，胞腔径增大６．９％。ＺＧＲ８胞壁较薄，腔径小，纤维细胞长度较长。１．０％ＮａＯＨ抽出物、热水抽出物分别比对照降低１１．８％、１１．３％。酸溶性木素降低０．２１个百分点。ＺＧＲ１５化学成分中各项抽出物比对照降低１８．２２％～４．４９％；灰分、果胶低１３．１５％、０．８％，综纤维素却比对照高２．０７个百分点。综观品种各项参数分析，ＺＧＲ１５品种造纸性能最好，ＺＧＲ８品种其次。微结构分析，红麻韧皮纤维细胞壁厚度约占整个纤维断面的８０％～９０％，其中次生壁中层为主要部分。木质部纤维细胞壁极薄，仅占整个纤维断面的２０％～３０％，腔径大（２０～２５微米），在制浆中易形成扁平的片状体，能增强浆料中纤维结合力，使红麻木质纤维浆的物理性能得到改善。
In this paper, we comprehensively observed and analyzed the four phloem barks, lignocellulose cell morphology, chemical composition, special chemical composition and ultrastructure of kenaf cultivars. Results The length of bast and lignocellulose cells of ZGR15 was the longest, 2.735 mm and 0.755 mm respectively, which increased by 2.61% and 4.86% and 6.9% respectively compared with the control. ZGR8 cell wall is thin, small cavity diameter, longer fiber length. 1.0% NaOH extract, hot water extract were 11.8% lower than the control, 11.3%. Acid soluble lignin decreased 0.21 percentage points. ZGR15 chemical composition of the extract decreased 18.22% ~ 4.49% than the control; ash, pectin low 13.15%, 0.8%, holocellulose than the control 2.07 percentage points higher. Comprehensive analysis of the variety of parameters, ZGR15 varieties of the best paper performance, followed by ZGR8 varieties. Micro-structure analysis, kenaf bast fiber cell wall thickness of about 80% to 90% of the entire fiber section, in which the secondary wall of the middle wall as the main part. Fibrous xylem cell wall is very thin, accounting for only 20% to 30% of the entire fiber cross section, cavity diameter (20 ~ 25 microns), easy to form a flat sheet in the pulp, can enhance the slurry fiber binding force, The physical properties of kenaf lignocellulosic pulp are improved.