الفهرس 
Introduction
Effect of salinity on vegetative growth, essential oil productivity andOnly 14 pages are availabe for public view
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Abstract
-This work was carried out during the two successive seasons of 2006/2007 and 2007/2008 in the Experimental Farm in Baramoon, Horticultural Research Station Dakahlya Governorate, to study traditional ways for marjoram plants tolerate salinity stress at levels of (Tap water, 2000,4000 and 6000 ppm) and trying to raise their capability of tolerance by using combinations of modern bio-fertilizer (EM) and some products of Ministry of Agriculture such as (Novatrein + Askobein) which content mixture, i.e. macro and micro elements or organic matter + organic acids such as ascorbic acid + citric acid.
-Studying the effects of these treatment and their interactions on the growth, essential oil yield and its chemical structure. This study revealed the following results :
1-Marjoram plants appeared tolerance against saline irrigation water level when received combinations of EM, Novatrein or Askobein.
2-Spraying marjoram plants with different combinations enhanced the growth, as well as increased oil production and the main components of oil.
3-It could be recommendation that, spraying marjoram plants with mixture of EM + Novatrein + Askobein three times at life of plants could be overcome the harmful effect of saline water irrigation.