02068cab a2200301Ia 45 0 u205389 SIRSI 131001s2003 ua ss b eng d EAL eng ara ART MUJAS V28 NO4 45 Ghallab, A.M. Mansoura university journal of agricultural sciences, 2003 v. 28 (4) [electronic resource]. Reinforcing salt tolerance of marjoram plants by foliar application of putrescine [electronic resource]. زيادة تحمل نباتات البردقوش للملوحة باستخدام الرش بالبتروسين.‪‪ p.2987-3004 Includes references. The aim of the present work was to study the effectiveness foliar application of putrescine [0.0, 10, 15 and 20 f.lM] in improving the salinity tolerance of marjoram plants. Marjoram plants grown under different levels of salinity [0.0, 10, 25 and 40% of sea water]. For this reason two pot experiments were conducted during 2001 and 2002 seasons. The obtained results clearly confirmed the absolute superiority of foliar application of 10 1..1 M putrescine treatment, which significantly increased plant height, number of branches/plant, herb fresh and dry weight /plant, essential oil percentage [ml/100 g F.W] and oil yield [ml/plant] under norm~l or saline conditions up to 25% sea water. The data also revealed that tolerance, which was much pronounced as a result of foliar application of 10 llM treatment, was more negative osmotic potentials (Osmotic Adjustment) through the accumolation of much more quantities of inorganic osmotica, Summary in Arabic. Medicinal plants. Aromatic plants Fertilizers. Putrescine. marjoram. EI-Ghadban, E.A.E. Mansoura University Journal of Agricultural Sciences. 2003.v.28(4) 1110-0346 nnas u182197 http://nile.enal.sci.eg/EALE/2003/MUJAS/2803/4/2987.pdf Full Text Article. 1 AR lcc 56187 56187