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Composition and diversity of weed communities in al-Jouf province, Northern Saudi Arabia
Author
Source
Saudi Journal of Biological Sciences
Issue
Vol. 19, Issue 3 (30 Sep. 2012), pp.369-376, 8 p.
Publisher
Publication Date
2012-09-30
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Topics
Abstract EN
The aim of this study was to identify the main weed communities in Al-Jouf province in northern Saudi Arabia.
Moreover, the composition and diversity of these communities were studied in relation to soil variables and crop type.
Some 54 stands representing olive orchards, date palm orchards, wheat crop and watermelon crop were studied, using ten quadrats (1 · 1 m) per stand.
A total of 71 species belonging to 22 families and 61 genera were observed.
The classification of vegetation using the Two Way Indicator Species Analysis (TWINSPAN) resulted in the recognition of four vegetation groups representing wheat crop, orchards in winter season, orchards in summer season and watermelon crop.
These results suggested the importance of both crop and season for the formation of weed community.
Detrended Correspondence Analysis (DCA) showed that these groups are clearly distinguished by the first two DCA axes.
The species richness was higher in both olive and date palm orchards than in wheat and watermelon crops.
This pattern of species richness could be related to farm management practices and habitat micro-heterogeneity.
Soil electrical conductivity, organic carbon and soil texture showed significant correlations with species richness and the cover values of some dominant species, suggesting the significant role of soil characteristics in weed community structure and diversity
American Psychological Association (APA)
Jumah, Nasr H.. 2012. Composition and diversity of weed communities in al-Jouf province, Northern Saudi Arabia. Saudi Journal of Biological Sciences،Vol. 19, no. 3, pp.369-376.
https://search.emarefa.net/detail/BIM-359497
Modern Language Association (MLA)
Jumah, Nasr H.. Composition and diversity of weed communities in al-Jouf province, Northern Saudi Arabia. Saudi Journal of Biological Sciences Vol. 19, no. 3 (2012), pp.369-376.
https://search.emarefa.net/detail/BIM-359497
American Medical Association (AMA)
Jumah, Nasr H.. Composition and diversity of weed communities in al-Jouf province, Northern Saudi Arabia. Saudi Journal of Biological Sciences. 2012. Vol. 19, no. 3, pp.369-376.
https://search.emarefa.net/detail/BIM-359497
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 375-376
Record ID
BIM-359497