الفهرس 
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Abstract
This investigation aims to study the effect of GA3, urea and planting spacing on the growth and same metabolic as pects in a trropa lelladanna plants. The treatments used on the are GA3, treatments by spsaying it twice, the first one is 4 weeks after transphanting and the second one is 4 weeks later. Urea treatments are performed by spraying it weekly for 8 times, the first one is 4 weeks after transplantation. Planting distances treatments are 40×40, 40×60 and 40×80 cms. The results obtained show that GA3 leads generally to a stimulating effect on growth as well as on plant height, plant fresh weight and the number of either branches and leaves. The dry matter accumulation in the different plant organs increases by increasing the concentration of urea treatmnts during the different developmental stages. Planting atwide spaces (60 and 85 cms) produces the highest plants with maximum fresh weight, number of branches and leaves per plant.