PHENETICAL AND HISTOLOGICAL STUDIES ON SOME TAXA OF GENUS DA TURA (SOLANACEAE). | ||||
| Journal of Plant Production | ||||
| Article 12, Volume 27, Issue 4, April 2002, Page 2127-2154 PDF (9.62 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2002.253965 | ||||
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| Authors | ||||
| A. M. Khattab,; O. S. EI-Kobisy; A. Z. Sabh | ||||
| Agric. Botany Department, Fac. of Agric, Cairo University, Giza, Egypt. | ||||
| Abstract | ||||
| A phenetical (morphological characters) and histological investigations were carried out as taxonomic evidences for representing, in general, the relationship between different taxa of genus Datura, namely; D.mete/, D.ferox, D.tatu/a and D.stramonium, and specially between last two taxa for the taxonomic arguments raised between them. All the morphological and histological results suggested that D.mete/ is a distinct species characterized by a unique characters; e.g., flower large, fruit spherical, fruit suture of densely hairs, fruit rachis is curved downward. These characters are varied when compared with those of other taxa. D.ferox came in the middle category in its characteristics between D.mete/ from one side and D.tatu/a and D.stramonium from the other side. D.ferox sharing D.mete/ in green purple colour stem and white center strip of hilum. While, D.ferox sharing D. tatu/a and D.stramonium the ovate fruit shape, erect fruit rachis, seed size and brown or beige seed colour. D.tatu/a and D.stramonium were more similar to each other in many morphological and anatomical characters than to any of the other studied taxa and could be classify under white stramonium for D.stramonium and purple stramonium for D. tatula. Some of these characters are; flower size, moderately spines on fruit surface, erect fruit rachis, fruit shape, root cortex thickness, root vascular cylinder thickness, stem cortex thickness and barrel stem epidermal cell. | ||||
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