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开花期醉马草对伴生种种子萌发和幼苗生长的影响

作  者:
靳瑰丽;朱习雯;赛米拉克孜·台外库力;魏秀红;古丽夏依尔·阿克
单  位:
新疆农业大学草业与环境科学学院/新疆草地资源与生态重点实验室
关键词:
醉马草;伊犁绢蒿;针茅;种子萌发;幼苗生长
摘  要:
【目的】研究醉马草对伴生种的化感作用,探讨其对伊犁绢蒿和针茅种子萌发特性和幼苗生长的影响。【方法】以毒草醉马草为供体植物,伴生种伊犁绢蒿和针茅为受体植物,采用培养皿滤纸法做种子萌发实验,探讨其化感作用。【结果】开花期醉马草水浸液处理伴生种种子后,对种子萌发和幼苗生长的影响总体均表现为抑制作用;不同部位的化感作用强度为叶>茎>根,且均为浓度越大抑制作用越显著。【结论】醉马草水浸液对伊犁绢蒿和针茅种子具有一定的抑制效应,这可能是造成伴生种大面积退化的原因之一。
译  名:
Seed Germination and Seedling Growth of Accompanying Species
作  者:
JIN Gui-li;ZHU Xi-wen;Saimilakezi Taiwaikuli;WEI Xiu-hong;Gulixiayier Ake;College of Pratacultural and Environmental Sciences/Xinjiang Key Laboratory of Grassland Resources and Ecology,Xinjiang Agricultural University;
关键词:
Achnatherum inebrians;;Seriphidium transiliense;;Stipa capillata;;germination;;seedling growth
摘  要:
【Objective】To study Achnatherum inebrians allelopathic effect on accompanying species and discuss germination and seedling growth characteristics of Seriphidium transiliense and Stipa capillata seed.【Method】Poisonous weeds Achnatherum inebrians as donor plants,associated species S. transiliense and S.capillata as receptor plants,using Petri dish with filter paper method for seed germination experiments to explore the allelopathic effect.【Result】After A. inebrians at the flowering stage treatment seed,on seed germination and seedling growth of the overall performance of inhibition; Allelopathy intensity in different parts of the performance substantially leaf > stem > root,and the higher the concentration,the more significant of inhibition would be. 【Conclusion 】Overall,A. inebrians aqueous extracts S. transiliense and S. capillata seeds have a certain inhibitory effect,which may be one of the reasons for the degradation of a large area of associated species.

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