AbstractThis study was carried out on Damson
Plum trees( Prunus domestica L.)
selected from orchard during 2015 growing season in Brzinjah district,
Sulaimani governorate, Iraqi Kurdistan Region, to investigate the effect of
different level of urea (0, 0.5 and 1%), and potassium chloride (KCl) (0, 1and 2%) on some physicochemical properties of plum fruits. Trees were sprayed
with Urea and potassium chloride at two different times, early May, and early
June, 2015. The results shows that, spraying
with 0.5% urea cased a
significant decrement of moisture and pectin percentage of fruit and increased
the dry matter and peroxidase enzyme activity, while the high level of urea
(1%) decreased significantly fruit size, pulp/fruit percentage and pulp/seed percentage. The
foliar spray with 2% of Potassium Chloride led to significant increase in the value of fruit
size, fruit
diameter, pulp/fruit percentage, and pulp/seed percentage, while significant decrease in peroxidase
enzyme activity compared with control treatment. On the other hand, the Treatment
combinations between spray of 0.5%
urea and 2% KCl gave the highest means of fruit
size,
fruit
length, fruit diameter, pulp/fruit percentage and pulp/seed percentage.
Key Words: Damson
Plum, Potassium Chloride, Urea.
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