El-Leithy, A., Salem, M., El-Ghadban, E., Abd El- Ghani, N. (2007). EFFECT OF IRRIGATION INTERVALS AND BIOFERTILIZATION ON GROWTH, YIELD, OIL PRODUCTION AND CHEMICAL CONSTITUENTS OF ROSEMARY ( Rosmarinus officinalis,L.) PLANTS.. Journal of Productivity and Development, 12(2), 645-665. doi: 10.21608/jpd.2007.45048
Ahmed El-Leithy; Mohamed Salem; El Sayed El-Ghadban; Nabil Abd El- Ghani. "EFFECT OF IRRIGATION INTERVALS AND BIOFERTILIZATION ON GROWTH, YIELD, OIL PRODUCTION AND CHEMICAL CONSTITUENTS OF ROSEMARY ( Rosmarinus officinalis,L.) PLANTS.". Journal of Productivity and Development, 12, 2, 2007, 645-665. doi: 10.21608/jpd.2007.45048
El-Leithy, A., Salem, M., El-Ghadban, E., Abd El- Ghani, N. (2007). 'EFFECT OF IRRIGATION INTERVALS AND BIOFERTILIZATION ON GROWTH, YIELD, OIL PRODUCTION AND CHEMICAL CONSTITUENTS OF ROSEMARY ( Rosmarinus officinalis,L.) PLANTS.', Journal of Productivity and Development, 12(2), pp. 645-665. doi: 10.21608/jpd.2007.45048
El-Leithy, A., Salem, M., El-Ghadban, E., Abd El- Ghani, N. EFFECT OF IRRIGATION INTERVALS AND BIOFERTILIZATION ON GROWTH, YIELD, OIL PRODUCTION AND CHEMICAL CONSTITUENTS OF ROSEMARY ( Rosmarinus officinalis,L.) PLANTS.. Journal of Productivity and Development, 2007; 12(2): 645-665. doi: 10.21608/jpd.2007.45048
EFFECT OF IRRIGATION INTERVALS AND BIOFERTILIZATION ON GROWTH, YIELD, OIL PRODUCTION AND CHEMICAL CONSTITUENTS OF ROSEMARY ( Rosmarinus officinalis,L.) PLANTS.
2Med. and Arom. Plant Research Dept., Hort. Research Instit., Agric. Research Center, Dokki, Giza, Egypt.
Abstract
This investigation was carried out aiming to study the effect of irrigation intervals ( every 7 , 11 and 15 days) and Biofertilization ( nitrobien and phosphorein each at 0 , 3 and 6 g /pot) on growth, yield, oil production and chemical composition of rosemary (Rosmarinus officinalis, L.), during two successive seasons of 2004 and 2005. The results showed that irrigation every 7 days gave the tallest plant, the highest oil percentage and oil yield/ plant in the first cut of both two seasons, the highest number of branches/ plant, fresh and dry weights/plant, total carbohydrates , N, P and K percentage in the first and second cut of both seasons and gave the highest linalool and P-cymene percentages in the essential oil. Whereas irrigation every 11 days gave the tallest plant, the highest oil percentage and oil yield/ plant in the second cut of both seasons and the highest α-pinene, β-pinene, limonene, 1,8 cineol and camphor percentages compared to irrigation every 15 days which gave the lowest values. Nitrobien and phosphorein at 3 and 6 gm/ pot significantly increased plant height, number of branches/ plant, fresh and dry weights/ plant and oil yield/ plant, and increased the main constituents of the essential oil (γ- Terpenene, 1,8 cineol, linalool , camphor, P-cymene, bornyl acetate and β caryophyllene percentages ), total carbohydrates, N, P and K contents in the first and second cut of both two seasons compared to unfertilized control. Interaction between irrigation intervals and bio-fertilization had a significant effect on vegetative growth characteristics and oil percentage and oil yield. Irrigation every 7 days and phosphorein at 6 g /pot gave the highest values of plant height ( in the first cut), number of branches /plant ( second cut), fresh and dry weights /plant ( in the first cut, oil yield /plant ( in the first cut), total carbohydrates, N and P contents in the first and second cut of both seasons. Whereas irrigation every 11 days and phosphorein application at 6 g /pot gave the highest dry weight/ plant, oil percentage and oil yield/ plant in the second cut of both two seasons. irrigation every 11 days and nitrobien application at 3 g /pot gave the highest β-pinene, 1,8 cineol, camphor and bornyl acetate percentages in the essential oil. Whereas irrigation every 11 646 EL-LEITHY ET AL days and phosphorein at 3 gm/pot gave the highest linalool and P- cymene percentages in the essential oil.
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