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Response of Some Marjoram Cultivars to Fertilization under Sandy Soil Conditions

By walaa on September 08,2008

 

Kareem M. El Tobgy, Yaser A. Osman, and Hamdy K. Atta-Alla 

Abstract

The present work was carried out in 2001 and 2002 seasons in the Experimental Farm of Faculty of Agriculture, Suez Canal, Ismailia University, to evaluate the production of some marjoram cultivars namely Origanum majorana marcelka, Origanum majorana blart, Origanum majorana  and Origanum majorana kruiden compared to local one Origanum majorana (Syn. Majorana hortensis M.) grown under sandy soil conditions and normal fertilization doses of organic manure (20 m3), calcium super phosphate (300 kg/feddan), ammonium sulphate (300 kg/feddan) and potassium sulphate (100 kg/feddan) were added. The results revealed that Origanum majorana marcelka was superior in growth characters in terms of number of branches and both plant fresh and dry weights. Moreover, it gave high oil percentage in the two seasons (1.14% and 1.02%, v/w) compared to the local cultivar (0.69% and 0.71%, v/w). Also, it was pioneer in the oil constituents, as it recorded the highest total of oxygenated and hydrocarbon compounds in the oil (94.02%) compared to the other studied cultivars. Identification of volatile components was performed using the modern technique of Gas Chromatography equipped with Head Solid State technique. The major oxygenated compounds of Origanum majorana marcelka were terpinene-4-ol, linalyl acetate and linalool (19.11, 17.01 and 16.54%, compared to the local cultivar, 17.97, 13.99 and 15.59%, respectively).Key words: Essential oil constituents, Head Solid State technique, Oregano, origanum cultivars, sandy soil.


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