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Citrus (Citrus spp.) one of the most important fruit crops grown in many tropical and subtropical countries. At the moment there is a bout 1.5 million hectares of citrus fruits cultivated for commercial scale in the world yielded nearly 40 million metric tons of oranges, lemons, limes, etc (Anonymous, 2008). In Egypt, citrus has great attention due to its importance for local consumption or as a main source for foreign currencies by exportation to the European country. The area of citrus cultivated in Egypt was increased rapidly with the reclamation of new desert lands reaches about 35.59...

Many people mistakenly believe that fruit trees grow true to name from seeds . In reality, if you collect seed from a fruit grown on a plant, the seeds will produce plants that will be a hybrid of two plants . The new plant will be the same kind of plant, but its fruit and vegetative portions may not look the same as the parent because the plant is "heterozygous ." Therefore, all fruit trees must be vegetatively propagated by either grafting or budding methods . Fruit growers frequently use grafting techniques to topwork new varieties or strains of fruit onto established trees bearing...