A laboratory experiment was conducted during 2002-003. The purpose was
to develop an effective and rapid screening tool to assess the genetic variability
for the response of some local barley varieties to polyethylene glycol- induced
osmotic stres
s at early growth stage. Also this will help to evaluate the relevance
of pre-exposure of barley seedlings to sub-lethal (induction) levels of osmotic
stress. This might enhance the capacity of seedlings to tolerate the lethal levels
of stress.
This study was carried out at the Faculty of Agriculture, Damascus
University, and ACSAD during the year 2001 – 2002 in order to assess the
genetic variability of twenty wheat genotypes for osmotic stress tolerance by
using PEG-6000 as a water str
ess induced tool. This trial aimed to develop
a semi-natural rapid and effective screening technique in which the optimum
induction as well as lethal levels of osmotic stress are well defined .
The results revealed that the treatments –0.4 MPa and –1.5 MPa were the
optimum induction and lethal levels of osmotic stress, respectively.
Laboratory experiment was conducted in the laboratories of field
crops department, Faculty of Agriculture, Damascus University,
during the year 2011, in order to screen some lentils genotypes to
osmotic stress at seedling stage.
