Youssef,, F., Khattab, A., Rabie, S., Abd-EI Maksoud, H. (2003). USING GRAINS AS AN EVIDENCE FOR TAXONOMY OF SOME SPECIES OF POACEAE.. Journal of Plant Production, 28(6), 4493-4516. doi: 10.21608/jpp.2003.244645
Fadla A. Youssef,; A. M. Khattab; S. H. Rabie; Hanan S. Abd-EI Maksoud. "USING GRAINS AS AN EVIDENCE FOR TAXONOMY OF SOME SPECIES OF POACEAE.". Journal of Plant Production, 28, 6, 2003, 4493-4516. doi: 10.21608/jpp.2003.244645
Youssef,, F., Khattab, A., Rabie, S., Abd-EI Maksoud, H. (2003). 'USING GRAINS AS AN EVIDENCE FOR TAXONOMY OF SOME SPECIES OF POACEAE.', Journal of Plant Production, 28(6), pp. 4493-4516. doi: 10.21608/jpp.2003.244645
Youssef,, F., Khattab, A., Rabie, S., Abd-EI Maksoud, H. USING GRAINS AS AN EVIDENCE FOR TAXONOMY OF SOME SPECIES OF POACEAE.. Journal of Plant Production, 2003; 28(6): 4493-4516. doi: 10.21608/jpp.2003.244645
USING GRAINS AS AN EVIDENCE FOR TAXONOMY OF SOME SPECIES OF POACEAE.
1Agricultural Botany Department, Fac. of Agric., Calro·Unlversity.
2Flora and Phyto-taxonomy Researches Department, Horticulture Research Institute, Agricultural Research Center, Giza.
Abstract
Taxonomic relationships using the grains of 14 poaceous wild and cultivated species belong to 6 genera and 5 tribes of Poaceae were studied. Species are; YlIild oat (Avena fatus L.), Common oat (Avena sativa L.) Animated cet (Avena sterilis L). Sudan-grass (Sorghum)( drummondii Nees ex Stendel), Sorghum (Sorghum vlrgatp < /em>m (Hack.) Stapf.). Rye-grass (Lo/ium multiflorum Lam.), Rye-grass (Lolium perenne ~.), Boarded Rye-grass (Lolium temu/entum L.). Wild millet (Echinochloa colona (L.) Link.), Bamyard-grass (Echinoch/oa crus-gaTl/ (L.) P. Beauv.), Bristle·grass (Se/aria pumlla (Pol ret) Roemer & Schultes), Can nary-grass (Pha/ans canariensis L.). Lesser cannary-grass (Pha/aris minor Rell.) and Hood Cannary-grass or White-grass (Phs/ans paradoxa L.).
The aim of this study was to Introduce a classification reflecting he relationships between some wild and cultivated species of Poaceae by using he morphological characters and Scanning Electron Microscope (SEM) characterizations of the grain surface (48 characters) of Ihese species. The numerical method of analysis (Single Linkage Clustering technique) was used 10 analyze the morphological
features and grain surface characteristics. I
Morphological description results indicated that the two species; Sorghu!p x drummondii and Sorghum virgatum are more close to each other than to any of he other species and could be categorized to the tribe level. The other twelve spec es ranked in separate tribe levels. Selaria pumila was split away from both Echinoch oa species and ranked In separate tribe called Setarieae. Grain shape and size are considered the most important characters in differenliating between the studied species. Scanning grain of surface revealed twelve reatures of discriminoting poten~lol between studied species. The numerical analysis shows that the studied species are split. in the higher similari!,:, level (1.41), into two groups: one includes both Sorghum species and the other Includes the I emaining species. The proposed keys and dassiflcation of species are presented.
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