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Pakistan Journal of Biological Sciences
  Year: 2002 | Volume: 5 | Issue: 7 | Page No.: 802-806
DOI: 10.3923/pjbs.2002.802.806
 
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Weed Diversity of Newly Farmed Land on the Southern Border of Egypt (Eastern and Western Shores of Lake Nasser)

A.M. Shaheen

Abstract:
Eighty-five weed species are now growing for the first time in habitats that did not previously exist in this area. Eleven weed species (transitional) are from the local flora of desert habitats that could tolerate the new environment. These species are related to 25 families and include 65 annuals (67.7%) and 31 perennials (32.3%) species, with Gramineae as the most represented family (30.2%). The Sudano-Zambesian elements (mono, bi and pluri-regional) present 28.1% while Mediterranean elements (mono-regional) attain 5.2%. The therophytes represent 69.8% of the life-form spectrum while phanerophytes form 6.3%. Some of these weeds are derived from typically local flora of desert and lake shore which are constantly met within these newly reclaimed sites while others (specially Mediterranean elements) are from other agricultural areas in Egypt where the plants, seeds, manure and agricultural equipment are originated. It was clear that with continuous human interference, the weed species will eventually replace the natural plants in the study area.
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How to cite this article:

A.M. Shaheen , 2002. Weed Diversity of Newly Farmed Land on the Southern Border of Egypt (Eastern and Western Shores of Lake Nasser). Pakistan Journal of Biological Sciences, 5: 802-806.

DOI: 10.3923/pjbs.2002.802.806

URL: https://scialert.net/abstract/?doi=pjbs.2002.802.806

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