الفهرس 
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Abstract
Spraying extracts of seed sprouts at 0.1 to 0.4 % enhanced the four growth aspects, i.e. shoot length, number of leaves/shoot, shoot thickness and leaf area, of Valencia orange trees in the spring growth cycle relative to the control treatment. The stimulation was appreciably related to the increase in the concentrations of each crop seed sprout. The outstanding effects on the investigated growth characteristics of these crop seed sprouts could be arranged as follows, in ascending order radish, leek, barley and wheat.
Chlorophylls a & b, total chlorophylls, total carotenoids, total carbohydrates %, N, P, K, Mg, S, Ca, Zn, Fe and Mn in the leaves were enhanced in response to treating the trees with any one of the four crop seed sprouts compared to the control treatment. Using seed sprout extracts of radish, leek, barley and wheat, in ascending order materially maximized these leaf components.
Treating Valencia orange trees three times with any of tested seed sprout extract had an obvious promotion on the percentages of initial fruit setting and fruit retention, yield and number of fruits/tree, also fruit quality in terms of increasing weight, height and diameter of fruit, juice %, T.S.S.%, T.S.S./acid, total and reducing sugars and vitamin C and decreasing fruit peel weight and thickness and total acidity relative to the control treatment. The promotion was considerably associated with using seed sprout extract of wheat, barley, leek and radish, in descending order. Unfavourable effects on fruit quality were recorded on untreated trees. Fruit shape value was unaffected by the investigated crop seed sprout extract treatments.