Mahmoud Abdou

EFFECT OF PLANT DENSITY AND SOME VITAMINS, AS WELL AS, ACTIVE YEAST ON SWEET BASIL (OCIMUM BASILICUM) PLANT. B- ESSENTIAL OIL PRODUCTION AND CHEMICAL CONSTITUENTS

Received: 10/1/2017 Accepted: 31/1/2017 ABSTRACT: The main object of this study was to determine the effect of plant density and some vitamins and active yeast on essential oil production and some chemical constituents of sweet basil. The experiment was conducted during two successive seasons of 2014 and 2015 at the ornamental laboratory and nursery, Fac. Agric., Minia Univ. Results showed that by increasing plant densities. The oil production decreased/plant and increased/fed. Also, the lower density increased pigments and NPK % elements. All used vitamins and active yeast treatments increased essential oil production (oil % and yield). The collection of vitamins increased essential oil % and pigments content, while active yeast treatment increased essential oil yield and the percentages of N, P and K %. The best interaction treatments for essential oil production/plant were two higher plant distance (80 and 65 plants/14.5 m) in combination with active yeast or 65 plants/14.5 m × vit. B1 + vit. C + vit. E. While, the highest yield of essential oil/fed were obtained with higher plant density (145 plants/14.5 m) in combination with active yeast or vit. B1 + vit. C + vit. E.

EFFECT OF NITROGEN SOURCES AND ASCORBIC ACID ON GROWTH AND ESSENTIAL OIL PRODUCTION OF GERANIUM (PELARGONIUM GRAVEOLENS, L.) PLANTS

Prof. Dr. M.S. Hanafy, Cairo Univ. ABSTRACT: The experiment was conducted during two successive seasons (2012/2013 and 2013/2014) in the nursery of ornamental plants and the Laboratory of Floriculture, Fac. of Agric., Minia Univ. The aim of this work is to study the effect of bio-mineral nitrogen and ascorbic acid (50, 100 and 150 ppm) on growth and essential oil production of geranium plants. Results showed that non-significant differences between mineral N (100%) and mineral N (75%) + Minia Azotein (Azotobacter strain) on growth and essential oil production of plants. The effect of high concentration (150 ppm) of ascorbic acid was superior to that other two concentrations (medium and low) on increasing plant growth and essential oil productivity. The plants fertilized with mineral N (75%) plus Minia Azotein (Azotobacter strain) and spraying with 150 ppm ascorbic were equal (growth and essential oil production) with plants received 100% N plus 150 ppm ascorbic acid.