Survey of weed species in the Research Station of the Faculty of Agriculture-University of Tripoli*

Abstract

This study was conducted in the Research Station of the Faculty of Agriculture-University of Tripoli during the winter seasons of 2013-2014 and 2014-2015. The objective was to survey the weed species present in 31.4 ha of the agricultural area of the Station. The survey study in the first season revealed the presence of 58 weed species belonging to 26 families. Among these, 13 dominant Asteraceae species were recorded, followed by 10 species of Poaceae. Five species or less belonging to the families Brassicaceae, Fabaceae and Boragenaceae were also recorded. Densities of 48, 42 and 34 plant/m² were recorded for three weed species namely Chrysanthemum coronarium L., Bromus rigidus Roth., and Plantago lanceolata L., respectively. These values are considered the highest when compared to densities of other weed species. This study indicates that the two species, namely Chrysanthemum coronarium and Bromus rigidus have the ability to disseminate faster due to their competitive characters compared to other species. These characters are eventually attributed to their biological properties related to their fast growth and seed production. The results of this study suggest that agricultural management including application of selective herbicides should be applied.

Key words: Chrysanthemum coronarium L., Bromus rigidus Roth.; weed dissemination, numerical density, competition, weed survey.

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* Full article in the Arabic Copy of this journal.

**Corresponding Author: Mohamed A.  Nasef. Crop Science Department, Fac. of Agriculture, Univ. of Tripoli, Tripoli, Libya.

Phone: .+ 218919685929. e-mail: m.nassef.23@gmail.com

Received: 17/12/2016

Accepted: 4/6/2017