Cambium generation and cellulose physical structure by growth stage and plant sex in ‘Yunma No. 1’ hemp stalk
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摘要: 利用广角X?鄄射线衍射仪和显微镜研究了生长期和植株性别对云麻1号工业大麻Cannabis sativa Yunma No.1麻秆形成层分生、纤维素相对结晶度和晶胞尺寸的影响。结果表明:在整个生长期内大麻秆茎部的纤维中,大麻纤维的相对结晶度随着生长期不断变化而变化,但整个生长期内变化幅度都不是很大;生长期为19~35 d,晶胞大小为0.230~0.245 nm,在生长期42~186 d,晶胞的大小较前面有所下降,大约为0.137 nm,并且基本保持不变;同一生长期,雌株的细胞层数比雄株的细胞层数略多;生长期77~91 d时,雄株的相对结晶度要高于雌株,而在生长期98~186 d,雌株的相对结晶度高于雄株;在77~186 d的生长期中,雌雄株晶胞尺寸的变化范围为0.136~0.150 nm。晶胞尺寸与生长期,细胞层数和相对结晶度之间没有显著的相关性。图1表3参13Abstract: To know the growth status, the physical properties of cellulose in hemp stalk better and provide more information for use it. Wide angle X-ray diffraction and a microscope were used to study the influence of growth stage and plant sex on cambium generation activity and the physical structure of cellulose in the industrial hemp stalk of Cannabis sativa Yunma No. 1with 4 strains of hemp samples. Samples from healthy, no rot, no breaking of industrial hemp, close to the ground for the collection. Results over the whole hemp stalk fiber growth period showed that relative crystallinity of the hemp fiber exhibited a greatly change (P-value was 0.039 0). For the growth period of 19-35 d, cell size was 0.230-0.245 nm, and from 42-186 d, cell size was basically unchanged (P-value was 0.086 2) with a decline of about 0.137 nm. For the same growing time, slightly more (P-value was 0.000 1) female plant cell layers than male were noted. From 77-91 d, the degree of relative crystallinity in male plants was higher (P-value was < 0.05) than female plants, but from 98-186 d it was higher (P-value was 0.058 8) in female plants. Cell size of male and female plants from 77-186 d was 0.136-0.150 nm. Thus, there was no strong relationship for cell size among growth period, cell layers, and relative crystallinity (The correlation coefficients between those were -0.518 0, -0.551 7, and -0.829 1 respectively). [Ch, 1 fig. 3 tab. 13 ref.]
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Key words:
- Cannabis sativa ‘Yunma No.1’ /
- growth stage /
- plant sex /
- cell layers /
- relative crystallinity /
- crystal cell size /
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2015.03.013
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