Allelopathic Effects of Extracts from Different Parts of Oat (Avena sativa) Seed on Rapeseed (Brassica napus)

doi:10.11733/j.issn.1007-0435.2019.04.012

Acta Agrestia Sinica ›› 2019, Vol. 27 ›› Issue (4): 882-888.DOI: 10.11733/j.issn.1007-0435.2019.04.012

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Allelopathic Effects of Extracts from Different Parts of Oat (Avena sativa) Seed on Rapeseed (Brassica napus)

LI Rong¹, MU Ping², ZHAO Gui-qin¹, CHAI Ji-kuan¹, JIN Xiao-wen¹, GOU Zhi-qiang¹, LI Juan-ning¹, Sun Hao-yang¹

1. College of Pratacultural Science, Gansu Agricultural University/Key Laboratory of Grassland Ecology System, Ministry of Education, Sino-U. S. Centers for Grazing land Ecosystem Sustainability, Lanzhou, Gansu Province 730070, China;
2. College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu Province 730070, China

Received:2019-03-22 Revised:2019-07-27 Online:2019-08-15 Published:2019-09-26

燕麦种子不同部位浸提液对油菜的化感效应

黎蓉¹, 慕平², 赵桂琴¹, 柴继宽¹, 金小雯¹, 苟智强¹, 李娟宁¹, 孙浩洋¹

1. 甘肃农业大学草业学院/草业生态系统教育部重点试验室/甘肃省草业工程试验室/中-美草地畜牧业可持续发展研究中心, 甘肃兰州 730070;
2. 甘肃农业大学农学院, 甘肃兰州 730070

通讯作者: 慕平
作者简介:黎蓉(1991-),女,甘肃华亭人,硕士研究生,E-mail:1554360123@qq.com
基金资助:
行业专项子课题（150712）；国家燕麦荞麦产业体系（CARS-07-C）资助

Abstract

Abstract: In order to investigate the allelopathic effect of aqueous extracts from different parts of oat (Avena sativa) seed on rapeseed (Brassica napus),the whole seeds,dehulled groats and hull of Avena sativa ‘Longyan No.3’ were used as research donor,and rapeseed was used as the receptor. The allelopathic effect of three aqueous extracts on the seed germination and seedling growth of rapeseed was evaluated. The results showed that the synthetical allelopathic effects of whole seed,dehulled and hull aqueous extracts on oats were negative,which were -0.81,-0.42 and -0.24,respectively,showing inhibition effects. The allelopathic synthetical effects of aqueous extracts with different concentrations on rapeseed seeds were significantly different (P<0.05). The synthetical allelopathic effect of whole seed aqueous extract on rapeseed had a concentration effect,showing promotion under low concentration and inhibition under high concentration. The aqueous extracts of dehulled groats and hull inhibited root growth of rapeseed but improved shoot growth,resulting in short root and long shoot of rapeseed seedling.

Key words: Oat seeds, Extract, Allelopathic effects, Seed germination, Seedling growth

摘要： 为探讨燕麦（Avena sativa）种子不同部位水浸提液对油菜（Brassica napus）的化感效应，本研究以皮燕麦陇燕3号（Avena sativa ‘Longyan No.3’）为研究对象，分别以其完整种子、去壳种子、颖壳为供体，油菜为受体，评价3个部位的水浸提液对油菜种子萌发和幼苗生长的化感作用。结果表明，燕麦完整种子、去壳种子和颖壳水浸提液原液对油菜的综合效应均为负值，分别为-0.81，-0.42和-0.24，表现为抑制作用。不同浓度水浸提液对油菜种子的化感综合效应差异显著（P<0.05）。完整种子水浸提液对油菜的综合效应表现为低促高抑的浓度效应。去壳种子和颖壳水浸提液对油菜幼苗的根生长表现出抑制作用，但对芽生长表现出显著促进作用，出现根短芽长的现象。

关键词: 皮燕麦种子, 浸提液, 化感效应, 种子萌发, 幼苗生长

CLC Number:

S512.6

LI Rong, MU Ping, ZHAO Gui-qin, CHAI Ji-kuan, JIN Xiao-wen, GOU Zhi-qiang, LI Juan-ning, Sun Hao-yang. Allelopathic Effects of Extracts from Different Parts of Oat (Avena sativa) Seed on Rapeseed (Brassica napus)[J]. Acta Agrestia Sinica, 2019, 27(4): 882-888.

黎蓉, 慕平, 赵桂琴, 柴继宽, 金小雯, 苟智强, 李娟宁, 孙浩洋. 燕麦种子不同部位浸提液对油菜的化感效应[J]. 草地学报, 2019, 27(4): 882-888.

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Allelopathic Effects of Extracts from Different Parts of Oat (Avena sativa) Seed on Rapeseed (Brassica napus)

燕麦种子不同部位浸提液对油菜的化感效应

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