Pot experiments were conducted in 2000-2001 and 2001-2002 seasons in the
wirehouse of Ihe Central laboratory for Food and Feed, Agriculture Research Center,
Giza. Egypt to study the tolerance of flax plant to different levels of salinity. (0. 2000.
4000 and 6000 ppm) as 2 NaCI : 2 CaCI2: 1 MgSO •. In addition to study the effect of
different treatments: phosptlorein 10 glKg seeds (biofertilizer) with full or half dose of
P20S. cotngein (15 g/kg seed) and foliafeed C (0.7 gIl), (micronutrients fertilizer
. compounds), GAl (at the rate of 100 ppm). on reducing the hazard effects of salinity
on growth. fibre yield and chemical composition of flax plant. The obtained results
indicated that. increasing salinity levels decreasesd most of the siudied characters
(shoot height. dry weights of roots, stems, leaves as well as whole plant, technical
lenglh, stem diameter, number of apical branches, straw and fibre yield/plant) as well
as total essential, non-essential and totat amino acid. crude protein. N Md K. White,
total sugars, some amino acids (proline, arginine and histidine), total soluble phenols
as well as P, Ca, Mg and Na increased by increasing salinity levels. On the other
hand, the application of phosphorein with full dose of PzOs surpassed phosphorein
with half dose of PZ05 on growth, fibre yield and chemical composition under saline or
non-saline soil conditions. Moreover. cotngein seed coated surpassed roliafeed C
foliar application on the most of the studied gro'",th, fibre yield characters as well as
chemical composition under saline or non-saline soil conditions. Furthermore. GAJ at
the rate of 100 ppm improved, to extent, the negative eHect of salinity on flax growth,
fibre yield and chemical composition.