The Allelopathy Effects of Water Extract from Invasive Plant Cenchrus spinifex on Seed Germination of Three Forages

doi:10.11733/j.issn.1007-0435.2024.08.022

Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (8): 2548-2556.DOI: 10.11733/j.issn.1007-0435.2024.08.022

The Allelopathy Effects of Water Extract from Invasive Plant Cenchrus spinifex on Seed Germination of Three Forages

JIA Wen, XU Ming-he, ZHOU Li-ye, GAO Kai, SUN Zhong-lin, XIONG Mei

College of Pratacultural, Inner Mongolia Minzu University, Tongliao, Inner Mongolia 028000

Received:2024-01-18 Revised:2024-03-15 Published:2024-09-07

入侵植物少花蒺藜草水浸提液对3种牧草种子萌发的化感效应

佳文, 许明贺, 周立业, 高凯, 孙忠林, 熊梅

内蒙古民族大学草业学院, 内蒙古通辽 028000

通讯作者: 周立业,E-mail:toni2002@126.com
作者简介:佳文(2000-),女,鄂温克族,内蒙古呼伦贝尔人,硕士研究生,主要从事草地生态与环境修复方面研究,E-mail:595113186@qq.com
基金资助:
内蒙古自治区自然科学基金(2022MS03060);科尔沁沙地生态农业国家民委重点实验室开放基金(MDK2023097);内蒙古自治区直属高校基本科研业务费(GXKY23Z081)资助

Abstract

Abstract: To investigate the allelopathy of Cenchrus spinifex on Medicago sativa Linn.,Glycine soja Siebold & Zucc.,Leymus chinensis (Trin. ex Bunge) Tzvelev seed germination,the culture dish method was used to study the effects of different water extracts concentrations (1.25%,2.5%,5.00%,10.00%) from different parts (litter,seed,root,stem,leaf) of C. spinifex on the seed germination of three forages. The results showed that water extracts from different parts of C. spinifex had different allelopathic effects,1.25% seed water extracts,1.25% and 10.00% litter water extracts had the promoting effects on the seed germination of M. sativa. Among them,the allelopathy of 1.25% seed water extract was the strongest,and its synthesis effect index was 0.05. The various concentrations of other parts water extracts all had inhibitory effects on seed germination of M. sativa;the all parts water extract of C. spinifex had inhibitory effects on seed germination of G. soja. Among them,10.00% leaf water extract completely inhibited the seed germination of G. soja;10.00% seed water extract had the strongest inhibitory effect on the seeds of L. chinensis,and synthesis effect index was -0.76.

Key words: Invasive plants, Cenchrus spinifex, Pasture, Allelopathic effect

摘要： 为探究少花蒺藜草(Cenchrus spinifex)的入侵对紫花苜蓿(Medicago sativa Linn.)、野大豆(Glycine soja Siebold & Zucc.)和羊草(Leymus chinensis (Trin. ex Bunge) Tzvelev)种子萌发的化感作用，本试验采用培养皿法研究少花蒺藜草各部位(凋落物、种子、根、茎、叶)不同浓度水浸提液(1.25 %,2.50%,5.00%,10.00%)对3种牧草种子萌发的影响。结果表明：少花蒺藜草的不同部位水浸提液化感作用不同，1.25% 种子水浸提液与10.00%种子、凋落物水浸提液对紫花苜蓿种子萌发具有促进作用，其中1.25% 种子水浸提液作用最强，综合化感效应指数为0.05，其他部位各浓度水浸提液对紫花苜蓿种子萌发均具有抑制作用；少花蒺藜草各部位水浸提液对野大豆种子萌发均具有抑制作用，其中10.00%叶水浸提液完全抑制了野大豆种子萌发；10.00%种子水浸提液对羊草种子抑制作用最强，综合化感效应指数为-0.76。

关键词: 入侵植物, 少花蒺藜草, 牧草, 化感效应

CLC Number:

JIA Wen, XU Ming-he, ZHOU Li-ye, GAO Kai, SUN Zhong-lin, XIONG Mei. The Allelopathy Effects of Water Extract from Invasive Plant Cenchrus spinifex on Seed Germination of Three Forages[J]. Acta Agrestia Sinica, 2024, 32(8): 2548-2556.

佳文, 许明贺, 周立业, 高凯, 孙忠林, 熊梅. 入侵植物少花蒺藜草水浸提液对3种牧草种子萌发的化感效应[J]. 草地学报, 2024, 32(8): 2548-2556.

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The Allelopathy Effects of Water Extract from Invasive Plant Cenchrus spinifex on Seed Germination of Three Forages

入侵植物少花蒺藜草水浸提液对3种牧草种子萌发的化感效应

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