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,