Response of Some Marjoram Cultivars to Fertilization under Sandy Soil Conditions II- Origanum majorana marcelka, Origanum majorana blart, Origanum majorana, Origanum majorana kruiden, and Origanum majorana (local)

Document Type : Original Article

Authors

1 Central Laboratory, Horticulture Research Institute, Agriculture Research Centre, Cairo, Egypt

2 Medicinal and Aromatic Plants Department, Desert Research Centre, Cairo, Egypt

3 Department of Horticulture, Faculty of Agriculture, Suez Canal University, 41522 Ismailia, Egypt

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).

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