Impact of the Invasive Ipomoea carnea Jacq. on Plant Diversity Along the Canal and Drain Banks of Nile Delta, Egypt
Sadek, M. (2015). Impact of the Invasive Ipomoea carnea Jacq. on Plant Diversity Along the Canal and Drain Banks of Nile Delta, Egypt. EKB Journal Management System, 11(1), 33-40.
Mohamed Sadek. "Impact of the Invasive Ipomoea carnea Jacq. on Plant Diversity Along the Canal and Drain Banks of Nile Delta, Egypt". EKB Journal Management System, 11, 1, 2015, 33-40.
Sadek, M. (2015). 'Impact of the Invasive Ipomoea carnea Jacq. on Plant Diversity Along the Canal and Drain Banks of Nile Delta, Egypt', EKB Journal Management System, 11(1), pp. 33-40.
Sadek, M. Impact of the Invasive Ipomoea carnea Jacq. on Plant Diversity Along the Canal and Drain Banks of Nile Delta, Egypt. EKB Journal Management System, 2015; 11(1): 33-40.

Impact of the Invasive Ipomoea carnea Jacq. on Plant Diversity Along the Canal and Drain Banks of Nile Delta, Egypt

Catrina: The International Journal of Environmental Sciences
Article 6, Volume 11, Issue 1, 2015, Page 33-40  XML PDF (498.92 K)
Document Type: Original Article
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Author
Mohamed Sadek email orcid
Botany Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
Abstract
In Nile Delta of Egypt, the introduced invasive species Ipomoea carnea Jacq. occupies pure and/or
mixed stands with poor associates along the banks of canals and drains forming a dense above ground
patches. In this study, the impact of I. carnea on floristic diversity and soil chemical properties
evaluated. The plant community attributes including species richness and evenness were compared
between invaded and uninvaded stands. The allelopathic potential of the aqueous extracts of root, stem,
leaf and fruit of I. carnea were examined on seed germination and seedling growth of Echinochloa
crus-galli and Portulaca oleracea weeds. Results showed that, the inhibitory effect of I. carnea extracts
could be related to the presence of phenolics, flavonoids, tannins and alkaloids, and followed a gradient:
leaf> fruit> root> stem. The allelopathic activity of I. carnea coupled with its competitive effect for soil
nutrients could contribute to the invasion success and attainment of pure population.
Keywords
Species diversity; invasive species; Allelopathy
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