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Influence of Diurnal Temperature Range on the Development of Fiber Cells in Flax (Linum usitatissimum)

文献类型： 外文期刊

作者： Du, Guanghui 1 ; Wu, Liyan 1 ; Deng, Gang 1 ; Yang, Yang 1 ; Liu, Feihu 1 ; Rowland, Gordon 3 ;

作者机构： 1.Yunnan Univ, Sch Agr, 2 North Cuihu Lake Rd, Kunming 650091, Peoples R China

2.Yunnan Acad Agr Sci, Hort Inst, 2238 Beijing Rd, Kunming 650205, Peoples R China

3.Univ Saskatchewan, Coll Agr & Bioresources, Dept Plant Sci, 51 Campus Dr, Saskatoon, SK S7N 5A8, Canada

关键词： Flax;DIF;Bast fiber;Fiber cell;Temperature

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）

ISSN： 1560-8530

年卷期： 2017 年 19 卷 3 期

页码：

收录情况： SCI

摘要： Three flax (Linum usitatissimum L.) cultivars ('Ariane', `'Argos' and 'Viking') were used to study the effect of diurnal temperature range (DIF) applied throughout the whole growth stage on the development of fiber cells. Diurnal temperature ranges were set at 5 degrees C, 10 degrees C and 15 degrees C with the same daily mean temperature and accumulated growing degree days (GDDa). All measured traits showed obvious DIF and varietal differences except the length of fiber bundle (LFB) and the inter-fiber bundle distance (IFBD). Significant interactions of DIF and cultivar were observed to affect the width of fiber bundle (WFB), the size of fiber cell (SFC), the size of fiber cell cavity (SFCC) and the thickness of fiber cell wall (TFCW). Compared with other DIFs, the number of fiber cells per bundle (NFCB) and WFB increased, but IFBD decreased under DIF 5. However, WFB, TFCW and NFCB all decreased under DIF 10. Under DIF 15 condition, both SFC and SFCC increased. For 'Ariane', IFBD was short under DIF 5, but SFC and SFCC were both large under DIF 10. For ` Argos', IFBD was also short under DIF 5. Under DIF 10, WFB, SFC and TFCW were all small, but IFBD was long. For ` Viking', TFCW was small under DIF 10 but large under DIF 15. All these results suggested a definite influence of DIF on the development of fiber cells in flax, and DIF set at 5 degrees C benefited the number of fiber cells in a bundle but DIF 15 was optimal for the size of fiber cells. (C) 2017 Friends Science Publishers

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