Vegetative Reproduction in Populations of Justicia Americana in Ohio and Alabama
Creators:Lewis, Kenneth P.
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Citation:The Ohio Journal of Science. v80, n3 (May, 1980), 134-137
Community structure and the role of vegetative reproduction were studied in the essentially monotypic stands of water willow within the Scioto and Hocking Rivers of Ohio and the Flint and Paint Rock Rivers of Alabama. Vegetative reproduction in both Ohio and Alabama populations was most successful with rhizome portions, if the sections were subject to soil deposition. If soil deposition over the sections was not involved, then upright stem sections were most successful. Total darkness is inhibitory to vegetation reproduction, and reproduction is significantly less under a 500 lux light regime as compared to that under 5,000 or 20,000 lux. Vegetative reproduction is not increased by free floating, as might occur during flooding.
Author Institution: Department of Biology, University of Alabama in Huntsville
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