[1]李晨辉,赵允格*. 糖蜜对人工培养银叶真藓生长发育的影响[J].西北林学院学报,2019,34(1):130-136.[doi:10.3969/j.issn.1001-7461.2019.01.19]
　LI Chen-hui,ZHAO Yun-ge*. Influence of Molasses on the Growth of Artificial Cultured Bryum argenteum[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(1):130-136.[doi:10.3969/j.issn.1001-7461.2019.01.19]
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 糖蜜对人工培养银叶真藓生长发育的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第1期
页码:
130-136
栏目:
出版日期:
2019-01-31

文章信息/Info

Title:
 Influence of Molasses on the Growth of Artificial Cultured Bryum argenteum
文章编号:
1001-7461(2019)01-0130-07
作者:
 李晨辉1; 2; 赵允格2*
 (1.西北农林科技大学 资源与环境学院，陕西 杨陵 712100；2.中国科学院 水利部 水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西 杨陵 712100)
Author(s):
 LI Chen-hui1; 2; ZHAO Yun-ge2*
 （1.College of Natural Resources and Environment,Northwest A&F University,Yangling 712100,Shaanxi,China; 2.State Key Laboratory of Soil Erosion and Dry Farming on Loess Plateau,Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,Shaanxi,China）
关键词:
 ; 糖蜜; 生物结皮; 人工培养; 银叶真藓; 营养物质
Keywords:
 ; molasses;  biological soil crust;  artificial culture;  Bryum argenteum;  nutrient
分类号:
S154.4
DOI:
10.3969/j.issn.1001-7461.2019.01.19
文献标志码:
A
摘要:
 为促进藓结皮人工扩繁，以世界广布种银叶真藓(Bryum argenteum)为对象，通过室内试验研究了不同浓度（3、6、10、20 g·L-1和30 g·L-1）糖蜜溶液对银叶真藓生长发育的影响。结果表明，添加糖蜜溶液会降低银叶真藓萌发数量，其中添加10 g·L-1和20 g·L-1糖蜜溶液时银叶真藓萌发数量与对照组差异显著，分别为对照组的38%和29%。添加糖蜜溶液会影响银叶真藓生长速率，其中添加3 g·L-1糖蜜溶液可显著增加银叶真藓生长速率，盖度每周可增加11.56%，密度每周可增加6.67株·cm-2，而添加30 g·L-1糖蜜溶液时银叶真藓生长速率显著低于对照组。添加10、20 g·L-1和30 g·L-1糖蜜溶液能在培养末期维持银叶真藓的盖度和密度，而添加3 g·L-1和6 g·L-1糖蜜溶液在培养末期时密度会下降，降幅分别为最大密度的19%和15%。培养初期使用3 g·L-1糖蜜溶液而培养末期增大浓度到10 g·L-1，可显著增加银叶真藓的盖度、密度，在培养末期可维持72.83%的盖度和41.25株·cm-2的密度。糖蜜溶液作为葡萄糖的替代物能促进银叶真藓的生长发育，在大面积培养人工藓结皮时可推广使用。
Abstract:
 This study explored the effect of molasses with different concentrations (3,6,10,20 and 30 g·L-1) on the growth and development of Bryum argenteum which was a cosmopolitan moss species by the laboratory cultivation method.The results showed that adding molasses solution could reduce the germination of B.argenteum.The germination numbers of adding 10 and 20 g·L-1 molasses solution were significantly different from the control,approximately 38% and 29% of the control,respectively.The growth rate of B.argenteum was also affected by molasses solution.The concentration of 3 g·L-1 molasses solution significantly increased the growth rate of B.argenteum,by which average growth rate of coverage reached 11.56% per week,the density of the average growth rate reached 6.67 plants/cm2 per week.However the 30 g·L-1 molasses solution significantly reduce the growth rate compared to the control.Adding 10,20 and 30 g·L-1 molasses solution could maintain the coverage and the density of B.argenteum at the end of the culture.The density of B.argenteum was reduced at the end of the cultivation period by 19% and 15% of maximum density under the treatment of 3 and 6 g·L-1 molasses solution.The coverage and density of B.argenteum significantly increased when the concentration of molasses solution enhanced from 3 in the early stage of culture to 10 g·L-1 at the end of cultivation,which also could maintain a coverage of 72.83% and a density of 41.25 plants/cm2 at the end of culture.It was concluded that the molasses solution could be used as a substitute for glucose to promote the growth and development of B.argenteum in large-scale artificial cultivation.

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备注/Memo

备注/Memo:
 收稿日期：2018-03-21修回日期：2018-09-26
基金项目：国家自然科学基金（41571268）。
作者简介：李晨辉，男，硕士研究生，研究方向：人工生物结皮快速培育。E-mail:chenhuileer@163.com
*通信作者：赵允格，女，研究员，博士生导师，研究方向：生物结皮和土壤生态。E-mail:zyunge@ms.iswc.ac.cn
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