紫茎泽兰水浸提液对慈竹种子萌发及幼苗生长的影响
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摘要
以浓度为0(对照)、0.25%、1.00%、2.00%、3.00%的紫茎泽兰水浸提液处理慈竹种子,研究其水浸提液对慈竹种子萌发和幼苗生长的化感作用。研究结果表明,紫茎泽兰水浸提液对慈竹种子的萌发和生长都起到显著影响。在低浓度处理下,浸提液具有低剂量刺激效应,可提高慈竹种子的发芽率、发芽势;随着浓度的升高,慈竹种子发芽率、发芽势显著降低,同时,幼苗的鲜重、根冠比先增加后降低;丙二醛含量、SOD酶活性与浸提液的浓度呈正相关;POD酶活性则先上升,后下降,但均高于对照组。这说明较高浓度的紫茎泽兰水浸提液可显著抑制慈竹种子萌发和幼苗的生长,其入侵林地后对竹林的生产和经营存在潜在威胁。
The seeds were treated by 0(ck),0.25%,1.00%,2.00%,3.00% aqueous extract form Ageratina adenophora in order to investigate the allelopathy on seed germination and growth of Neosinocalamus affinis. The results showed that the aqueous extract of A.adenophora had a significant impact on seed germination and growth of N. affinis. At low concentrations, the aqueous extract improved the germination percentage and germination potential; As the concentration increased, the germination percentage and potential decreased significantly; The fresh weight, root-shoot ratio increased and then fell down; The MDA content and SOD activity were positively related to the concentration of aqueous extract; The POD activity also increased and then fell down, but still higher than those in the control group(0.00%). It suggested that the higher concentration of aqueous extracts would ignificantly inhibit the seed germination and growth of N. affinis, there was a potential threat to the production and operation of bamboo forest.
The seeds were treated by 0(ck),0.25%,1.00%,2.00%,3.00% aqueous extract form Ageratina adenophora in order to investigate the allelopathy on seed germination and growth of Neosinocalamus affinis. The results showed that the aqueous extract of A.adenophora had a significant impact on seed germination and growth of N. affinis. At low concentrations, the aqueous extract improved the germination percentage and germination potential; As the concentration increased, the germination percentage and potential decreased significantly; The fresh weight, root-shoot ratio increased and then fell down; The MDA content and SOD activity were positively related to the concentration of aqueous extract; The POD activity also increased and then fell down, but still higher than those in the control group(0.00%). It suggested that the higher concentration of aqueous extracts would ignificantly inhibit the seed germination and growth of N. affinis, there was a potential threat to the production and operation of bamboo forest.
引文
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[19] 马金虎,杨文秀,孙亮亮,等.紫茎泽兰提取物对3 种杂草的化感胁迫作用[J].生态学报,2018,38( 10) :3514～3523.
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[2] 侯玉平,柳林,王信,等.外来植物火炬树水浸液对土壤微生态系统的化感作用[J].生态学报,2013,33(13):4041～4049.
[3] 袁驰,陈勇,梁永霞,等.紫茎泽兰水浸提液对不同基因型水稻种子萌发及幼苗生长的影响[J].种子,2018,37(5):81～84.
[4] 刘海,杜如万,王勇,等.紫茎泽兰对四川省凉山州共生植物种间联结性及稳定性的影响[J].生态学报,2017,37(15):5031～5038.
[5] 徐成东,浦雪梅,李国树,等.紫茎泽兰叶水提液对玉米种子萌发和幼苗生长的影响[J].华北农学报,2010,25(增刊):124～127.
[6] 曹子林,王乙媛,王晓丽,等.紫茎泽兰对杉木种子萌发及幼苗生长的化感作用[J].种子,2017,36(7):32～36.
[7] 胡凯茜,郑元,黄新会,等.紫茎泽兰对桉树幼苗生长及生理生态指标的影响[J].中南林业科技大学学报,2016,06:51～55.
[8] 曹子林,王乙媛,王晓丽,等.紫茎泽兰对蓝桉种子萌发及苗生长的化感作用[J].种子,2017,36(11):38～43.
[9] 刘济明,陈敬忠,孙运刚,等.紫茎泽兰叶水提液对7种乡土植物幼苗生长和叶绿素的化感影响[J].广西植物.http://kns.cnki.net/kcms/detail/45.1134.Q.20180620.1050.002.html
[10] 王亚麒,焦玉洁,陈丹梅,等.紫茎泽兰浸提液对牧草种子发芽和幼苗生长的影响[J].草业学报,2016,25(2):150～159.
[11] 江泽慧.世界竹藤[M].沈阳:辽宁科学技术出版社,2002.
[12] 陈俊任,柳丹,吴家森,等.重金属胁迫对毛竹种子萌发及其富集效应的影响[J].生态学报,2014,34(22):6501～6509.
[13] 张大鹏,蔡春菊,范少辉,等.重金属Pb2+和Cd2+对毛竹种子萌发及幼苗早期生长的影响[J].林业科学研究,2012,25(4):500～504..
[14] 林郑和,钟秋生,游小妹,等.低温胁迫对茶树抗氧化酶活性的影响[J].茶叶科学,2018,38(04):363～371..
[15] 杜澜,陈亮,谢锦忠,等.干旱胁迫及复水对绿竹容器苗生理特征的影响[J].林业科学研究,2018,31(04):164～171.
[16] 李霞霞,张钦弟,朱珣之.近十年入侵植物紫茎泽兰研究进展[J].草业科学,2017,34(02):283～292.
[17] 万方浩,刘万学,郭建英,等.外来植物紫茎泽兰的入侵机理与控制策略研究进展[J].中国科学:生命科学,2011,41(01):13～21.
[18] 聂林红,戴全厚,杜文军.紫茎泽兰化感作用的研究进展[J].中国植保导刊,2011,31(01):10～12.
[19] 马金虎,杨文秀,孙亮亮,等.紫茎泽兰提取物对3 种杂草的化感胁迫作用[J].生态学报,2018,38( 10) :3514～3523.
[20] 宋沁春,魏开,漆冬梅,等.盐胁迫下超声波处理对毛竹种子萌发及幼苗生长的影响[J].种子,2018,37(03):83～85..
[21] 韩一林.慈竹对干旱、高温及协同胁迫的生理生化响应[D].中国林业科学研究院,2017.
[22] 孙娜娜.外源NO缓解紫茎泽兰提取物对黄瓜种子萌发和幼苗生长伤害的生理生化机制[D].山西农业大学,2016.