Allelopathic effects of <italic>Thymus kotschyanus</italic> on seed germination and initial growth of <italic>Bromus tomentellus</italic> and <italic>Trifolium repens

doi:10.1007/s11703-010-1030-x

Front Agric Chin

2010, Vol. 4

Issue (4) : 475-480 https://doi.org/10.1007/s11703-010-1030-x

RESEARCH ARTICLE

Allelopathic effects of Thymus kotschyanus on seed germination and initial growth of Bromus tomentellus and Trifolium repens

Hanie SAFARI¹(

), Ali TAVILI¹, Morteza SABERI²

1. Faculty of Natural Resources, University of Tehran, P.O.Box: 31585-4314, Karaj, Iran; 2. Faculty of Natural Resources, University of Zabol, Zabol, Iran

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Abstract

The allelopathic influence of aqueous extracts of Thymus kotschyanus on Bromus tomentellus and Trifolium repens germination (%), germination speed, and seedling growth (length, fresh and dry weight) was examined. It was noted that aqueous extracts had a considerable inhibitory effect on target plant germination, and the effect at 50%, 75%, and 100% concentration was found to be significantly higher than that at lower concentrations (5% and 25%) and control treatment (distilled water). Seedling length in addition to fresh and dry weights was also reduced significantly over control. The inhibitory effect was increased as the extract concentration was increased. B. tomentellus showed a higher sensitivity against T. kotschyanus in allelopathic effects compared to T. repens, which indicates that B. tomentellus planted in rangelands with leaf litter of T. kotschyanus will be adversely affected in terms of its germination, growth, and ultimately low forage production.

Keywords allelopathy germination Thymus kotschyanus Trifolium repens Bromus tomentellus

Corresponding Author(s): SAFARI Hanie,Email:mitra_safari2000@yahoo.com

Issue Date: 05 December 2010

Cite this article:

Hanie SAFARI,Ali TAVILI,Morteza SABERI. Allelopathic effects of Thymus kotschyanus on seed germination and initial growth of Bromus tomentellus and Trifolium repens[J]. Front Agric Chin, 2010, 4(4): 475-480.

URL:

https://academic.hep.com.cn/fag/EN/10.1007/s11703-010-1030-x
https://academic.hep.com.cn/fag/EN/Y2010/V4/I4/475

Tab.1 values ofgermination properties affected by extracts

Tab.2 values of germination properties affected by extracts

Fig.1 Comparing allelopathic effect of extracts on the germination percentage of and

Fig.2 Comparing inhibitory effect of extracts on germination speed of and

Fig.3 Effects of different extracts levels on shoot length of and

Fig.4 Effects of different extracts levels on root length of and

Fig.5 Fresh (wet) weight of affected by different extracts levels

Fig.6 Dry weight of affected by different extracts levels

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