Abstract
Experiment is conducted in the lath house in the the Department of
Horticulture , College of Agriculture, University of Baghdad. Seedlings of
Aloe vera plant are planted in plastic pots 28 cm in dimeter filled with
sandyloam soil. The research contains two separate experiments.
In the first experiment, nitrogen fertilizer is used as urea CO(NH2)2 46%
applied to the soil at a rate of:0,0.5,1.0,1.5 g. plant-1 or as afoliar spray at a
rate of :0,1,2,3 g . L-1.In the second experiment, cycocel is sprayed at the
following concentration :0,500,1000,1500 mg.L -1.The experimental results
show that nitrogen at the rate of N1.5g.plant-1 in the content of the leaves of
the aloin and barbolin , Alotic acid, anthrone, exceeds the fertilization
treatment N0.5g.plant-1 in the content of the leaves of Aloe- emodin,
exceeds the fertilization treatment N1.0 g.L-1 in the content of the leaves of
anthranol and cinnamic acid. The spray treatment of nitrogen at the rate of
N2g.L-1 increases the concentration of. aloin , Aloe-emodin , anthrone and
cinnamic acid. The spray treatment of cycocel at the rate of 1500 mg.L-1
for two spry increases the concentration of, cinnamic acid , aloin , barbolin ,
aloe- emodin and Alotic acid. The spray treatment of cycocel at the rate of
1500 mg.L-1 in four spry increases the concentration of cinnamic acid and
aloin . The spray treatment of cycocel at the rate of 1000 mg.L-1 for two
spry increases the concentration of anthranol and anthrone.
Keywords
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