18 research outputs found
Three New Records of Pottiaceae (Musci) from Egypt
Three taxa of Pottiacea; Barbula sardoa (Schimp.) J.P. Frahm, Didymodonceratodentus (Müll.Hal.) Dixon and Syntrichia fragilis (Taylor) Ochyra collected from Nile Delta are new records to Egypt. This increases the number of taxa known from Egypt to 187. D. ceratodentus and S. fragilis are new records to North Africa
Fabronia Raddi (Musci) in Libya
Fabronia pusilla Raddi var. ciliata Lesq. & James is recorded for the first time from Libya. This record adds family Fabroniaceae to the moss flora of Libya and increases the number of taxa known from there to 107
Fabronia Raddi (Musci) in Libya
ABSTRACT Fabronia pusilla Raddi var. ciliata Lesq. & James is recorded for the first time from Libya. This record adds family Fabroniaceae to the moss flora of Libya and increases the number of taxa known from there to 107
An Economical Study of the Most Important Egyptian Aromatic Plants
Abstract: As Egypt is considered one of the most important producers of aromatic and medicinal plants, because of its suitable environment, this study concentrated on studying some main aromatic crops at Assuit, Menia, Monofia and Fayoum governorates. These governorates are the main producers for coriander, cumin, caraway and anise. The study used quantitative and qualitative analysis to identify main problems and challenges facing their production. The aromatic plant cultivated area in Egypt, total production and export values in Egypt for the period 1988-2004 were studied. Also, production and cost functions for aromatic crops production were estimated by using the double logarithmic equations. It was shown from the analysis of production functions of cumin and coriander crops, in Assuit and Menia governorates respectively, that increasing manure fertilizer, nitrate quantities and human labor by 1% leads to increase crop production by 53 % and 51% respectively. Also, increasing nitrate fertilizer and human labor for caraway crop in Monofia by 1% leads to increase the crop by 65%, while increasing them, in addition of phosphate fertilizer for anise crop in Fayuom by 1% leads to increase the crop by 58%. It was shown also, by using production and cost functions as double logarithmic form, that there was an analytical significant relationship at 0.01 level between productive costs and average feddan productivity of studied aromatic crops. The determinant coefficients R were ca. 0.84, 0.71, 0.74, 0.79 for cumin, 2 coriander, caraway and anise crops respectively. and it is obvious from equations that, the lowest production size of average costs which maximize profit were ca. 0.47, 0.96, 0.95, 0.72 tons for the previous mentioned crops respectively. Finally, its production efficiency for the studied sample was estimated and the research suggested some solutions for aromatic plant challenges and problems. They were; supplying farmers by loans from agricultural banks, sustainable irrigation and saving selected clean seeds, low price effective pesticides, by production inputs with suitable price and finally, supplying them by trained specialized agricultural guides in the field of aromatic and medicinal plants
