Allometry ofUrtica urens in polluted and unpolluted habitats |
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Authors: | Ali Elkarmi Rajaa Abu Eideh |
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Institution: | 1. Biological Sciences Department, Faculty of Science, Hashemite University, 13115, Zarqa, Jordan
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Abstract: | The allometry ofUrtica urens (small nettle), an important medicinal plant in many countries, growing in an area near pollution sources and an area away
from pollution sources was determined. The allometric coefficients were determined for nonlinear relationships between plant
height, stem width, root length, petiole length, leaf dry weight, petiole dry weight, leaf length, leaf width, leaf area and
specific leaf area. The slopes of the linear equations were determined for the above parameters. The results showed that there
is a difference in the allometry of different parts ofU. urens growing in these two areas. Air pollutants reduced the plant height, stem width, root length and petiole length and increased
leaf parameters. The same pattern of growth was reflected by comparing the slopes of the straight lines of the parts of the
plants growing in the two areas. |
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