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格氏栲天然林凋落物浸提液对杉木种子萌发和胚根生长的影响

晋梦然 王哲 李梦佳 刘金福 何中声 邢聪 施友文 沈彩霞

晋梦然, 王哲, 李梦佳, 刘金福, 何中声, 邢聪, 施友文, 沈彩霞. 格氏栲天然林凋落物浸提液对杉木种子萌发和胚根生长的影响[J]. 北京林业大学学报, 2020, 42(4): 51-59. doi: 10.12171/j.1000-1522.20190292
引用本文: 晋梦然, 王哲, 李梦佳, 刘金福, 何中声, 邢聪, 施友文, 沈彩霞. 格氏栲天然林凋落物浸提液对杉木种子萌发和胚根生长的影响[J]. 北京林业大学学报, 2020, 42(4): 51-59. doi: 10.12171/j.1000-1522.20190292
Jin Mengran, Wang Zhe, Li Mengjia, Liu Jinfu, He Zhongsheng, Xing Cong, Shi Youwen, Shen Caixia. Effects of litter extracts from Castanopsis kawakamii natural forest on seed germination and radicle growth of Chinese fir[J]. Journal of Beijing Forestry University, 2020, 42(4): 51-59. doi: 10.12171/j.1000-1522.20190292
Citation: Jin Mengran, Wang Zhe, Li Mengjia, Liu Jinfu, He Zhongsheng, Xing Cong, Shi Youwen, Shen Caixia. Effects of litter extracts from Castanopsis kawakamii natural forest on seed germination and radicle growth of Chinese fir[J]. Journal of Beijing Forestry University, 2020, 42(4): 51-59. doi: 10.12171/j.1000-1522.20190292

格氏栲天然林凋落物浸提液对杉木种子萌发和胚根生长的影响

doi: 10.12171/j.1000-1522.20190292
基金项目: 国家自然科学基金项目(31700550;31770678),福建省自然科学基金项目(2019J01367),福建省林业科技推广项目(2018TG14-2),福建省林业科学研究项目(KH1701390)
详细信息
    作者简介:

    晋梦然。主要研究方向:植物地理学。Email:jinmengran110@163.com 地址:350002福建省福州市仓山区上下店路15号福建农林大学林学院

    责任作者:

    刘金福,教授,博士生导师。主要研究方向:野生动植物保护与利用。Email:fjljf@126.com 地址:同上

  • 中图分类号: S792.17

Effects of litter extracts from Castanopsis kawakamii natural forest on seed germination and radicle growth of Chinese fir

  • 摘要: 目的探讨格氏栲天然林凋落物浸提液对伴生种杉木种子萌发与胚根生长的影响,旨在阐明格氏栲自然更新受抑机制问题。方法以格氏栲天然林凋落物浸提液为化感物质来源,伴生种杉木种子为受试种子,分析未分解层(枝、叶、皮、壳)、半分解层和全分解层凋落物浸提液对杉木种子发芽率、发芽势、发芽指数及胚根生长的影响。结果未分解层凋落物浸提液在低质量浓度时对杉木种子发芽率为促进作用,高质量浓度时为促进或较弱的抑制作用,各质量浓度作用下对发芽势与发芽指数均呈抑制;半分解层与全分解层凋落物浸提液抑制杉木种子萌发,且在低质量浓度(1∶50、1∶100)时抑制作用更强。未分解层凋落物浸提液对杉木胚根生长影响呈“低促高抑”的双重质量浓度效应,高质量浓度时为显著抑制(P < 0.05),其中1∶100质量浓度凋落物叶浸提液在作用第18天时,胚根长度较对照组增加14.3%,显著促进作用杉木胚根生长(P < 0.05);半分解层各质量浓度浸提液均促进杉木胚根生长,但不显著;全分解层浸提液在1∶5、1∶10和1∶50质量浓度时对杉木胚根生长呈促进作用,1∶30质量浓度时显著抑制(P < 0.05)。结论格氏栲天然林凋落物低质量浓度浸提液对杉木种子萌发总体呈促进或轻微的抑制作用,对胚根生长为促进作用,即促进了杉木更新,使林内种间竞争加剧,间接导致格氏栲自然更新受抑。

     

  • 图  1  不同凋落物浸提液对杉木胚根生长影响

    Figure  1.  Effects of different litter extracts on radicle growth of C. laceolata

    表  1  不同质量浓度枝浸提液对杉木种子发芽的影响

    Table  1.   Effects of different mass concentration branch extracts on seed germination of Castanopsis kawakamii

    质量浓度
    Mass concentration
    发芽率
    Germination rate/%
    化感指数
    Allelopathy index
    发芽势
    Germination potential/%
    化感指数
    Allelopathy index
    发芽指数
    Germination index
    化感指数
    Allelopathy index
    C1 1∶5 40.67 ± 5.51ab 0.01 12.33 ± 2.52c − 0.52 47.46 ± 6.84ab − 0.21
    C2 1∶10 42.50 ± 6.51a 0.05 22.67 ± 6.51a − 0.12 54.19 ± 11.94ab − 0.09
    C3 1∶30 31.00 ± 2.52b − 0.23 14.67 ± 2.52bc − 0.43 41.11 ± 6.45b − 0.31
    C4 1∶50 38.67 ± 3.21ab − 0.04 20.67 ± 3.21ab − 0.19 53.18 ± 5.56ab − 0.11
    C5 1∶100 38.67 ± 3.79ab − 0.04 19.67 ± 3.79ab − 0.23 52.26 ± 14.65ab − 0.13
    对照 Control (CK) 40.33 ± 3.68ab 0 25.67 ± 3.68a 0 59.78 ± 6.74a 0
    注:数值为“平均值 ± 标准误”,同列不同小写字母表示差异显著(P < 0.05)。下同。Notes: data are “average value ± standard error”, different lowercase letters in the same column indicate significant difference (P < 0.05). The same below.
    下载: 导出CSV

    表  2  不同质量浓度叶浸提液对杉木种子发芽的影响

    Table  2.   Effects of different mass concentration leaf extracts on seed germination of C. laceolata

    质量浓度
    Mass concentration
    发芽率
    Germination rate/%
    化感指数
    Allelopathy index
    发芽势
    Germination potential/%
    化感指数
    Allelopathy index
    发芽指数
    Germination index
    化感指数
    Allelopathy index
    C1 38.67 ± 1.53c − 0.04 8.00 ± 1.73c − 0.69 41.51 ± 4.20b − 0.31
    C2 49.00 ± 7.81b 0.18 17.00 ± 4.00b − 0.34 54.61 ± 0.90ab − 0.09
    C3 39.67 ± 1.53c − 0.02 17.67 ± 2.52b − 0.31 53.16 ± 5.40ab − 0.11
    C4 36.67 ± 4.04c − 0.09 18.33 ± 2.52b − 0.29 52.55 ± 5.60ab − 0.12
    C5 58.00 ± 4.58a 0.30 29.67 ± 2.31a 0.13 76.24 ± 5.23a 0.22
    CK 40.33 ± 3.86c 0 25.67 ± 3.68a 0 59.78 ± 6.48ab 0
    下载: 导出CSV

    表  3  不同质量浓度皮浸提液对杉木种子发芽的影响

    Table  3.   Effects of different mass concentration bark extracts on seed germination of C. laceolata

    质量浓度
    Mass concentration
    发芽率
    Germination rate/%
    化感指数
    Allelopathy index
    发芽势
    Germination potential/%
    化感指数
    Allelopathy index
    发芽指数
    Germination index
    化感指数
    Allelopathy index
    C1 41.67 ± 3.06ab 0.03 17.00 ± 4.35c − 0.34 50.06 ± 3.69b − 0.16
    C2 37.00 ± 7.21b − 0.08 18.33 ± 3.51bc − 0.29 49.35 ± 4.13b − 0.17
    C3 36.67 ± 2.31b − 0.09 16.33 ± 0.58c − 0.36 45.34 ± 3.53b − 0.24
    C4 47.00 ± 1.73a 0.14 23.00 ± 2.65abc − 0.10 63.58 ± 0.57a 0.06
    C5 40.67 ± 5.51ab 0.01 20.33 ± 2.31ab − 0.21 58.89 ± 0.99a − 0.01
    CK 40.33 ± 3.86ab 0 25.67 ± 3.68a 0 59.78 ± 6.48a 0
    下载: 导出CSV

    表  4  不同质量浓度壳浸提液对杉木种子发芽的影响

    Table  4.   Effects of different mass concentration nutshell extracts on seed germination of C. laceolata

    质量浓度
    Mass concentration
    发芽率
    Germination rate/%
    化感指数
    Allelopathy index
    发芽势
    Germination potential/%
    化感指数
    Allelopathy index
    发芽指数
    Germination index
    化感指数
    Allelopathy index
    C1 40.00 ± 4.36a − 0.01 12.67 ± 2.89c − 0.51 42.34 ± 3.77c − 0.29
    C2 40.50 ± 0.50a 0.00 21.67 ± 3.51ab − 0.16 56.67 ± 3.36ab − 0.05
    C3 44.67 ± 4.93a 0.10 25.33 ± 5.68a − 0.01 66.25 ± 1.14a 0.10
    C4 39.67 ± 5.51a − 0.02 21.33 ± 0.58ab − 0.17 54.46 ± 5.67b − 0.09
    C5 42.67 ± 7.37a 0.05 20.00 ± 1.41ab − 0.22 51.06 ± 8.67bc − 0.15
    CK 40.33 ± 3.85a 0 25.67 ± 3.68a 0 59.78 ± 6.48ab 0
    下载: 导出CSV

    表  5  不同质量浓度半分解层浸提液对杉木种子发芽的影响

    Table  5.   Effects of different mass concentration extracts from semi-decomposed layer on seed germination of C. laceolata

    质量浓度
    Mass concentration
    发芽率
    Germination rate/%
    化感指数
    Allelopathy index
    发芽势
    Germination potential/%
    化感指数
    Allelopathy index
    发芽指数
    Germination index
    化感指数
    Allelopathyt index
    C1 44.50 ± 1.50ab 0.09 19.33 ± 3.21b − 0.25 57.78 ± 0.42a − 0.03
    C2 32.33 ± 2.52b − 0.20 16.00 ± 2.00b − 0.38 44.73 ± 6.89bc − 0.25
    C3 45.00 ± 9.85ab 0.10 19.67 ± 5.51b − 0.23 49.80 ± 4.26ab − 0.17
    C4 50.00 ± 1.00a 0.19 18.00 ± 2.00b − 0.30 58.58 ± 0.65a − 0.02
    C5 26.50 ± 0.50c − 0.34 15.33 ± 3.06b − 0.40 39.69 ± 8.57c − 0.34
    CK 40.33 ± 3.86ab 0 25.67 ± 3.68a 0 59.78 ± 6.48a 0
    下载: 导出CSV

    表  6  不同质量浓度全分解层浸提液对杉木种子发芽的影响

    Table  6.   Effects of different mass concentration extracts from fully decomposed layer on seed germination of C. laceolata

    质量浓度
    Mass concentration
    发芽率
    Germination rate/%
    化感指数
    Allelopathy index
    发芽势
    Germination potential/%
    化感指数
    Allelopathy index
    发芽指数
    Germination index
    化感指数
    Allelopathy index
    C1 34.67 ± 2.52ab − 0.14 19.00 ± 2.65b − 0.26 48.63 ± 3.61b − 0.19
    C2 36.33 ± 0.58b − 0.10 13.00 ± 4.36c − 0.49 40.35 ± 6.19bc − 0.33
    C3 29.00 ± 3.00b − 0.28 13.67 ± 1.53bc − 0.47 36.52 ± 1.79c − 0.39
    C4 28.00 ± 10.58ab − 0.31 11.00 ± 2.65c − 0.57 33.15 ± 10.24c − 0.45
    C5 32.00 ± 4.00ab − 0.21 14.00 ± 3.46bc − 0.45 41.28 ± 4.36bc − 0.31
    CK 40.33 ± 3.86ab 0 25.67 ± 3.68a 0 59.78 ± 6.48a 0
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-07-11
  • 修回日期:  2019-09-12
  • 网络出版日期:  2020-03-27
  • 刊出日期:  2020-04-27

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