Apical dominance is the central factor that determines branching pattern in plant. (Streck, 2005). Cline (2000) suggested that auxin acts as a repressor of buds outgrowth. According to McLucas (2007) removing the apex (cutting the tip) of a stem stops the auxin (hormone) flow and allows the buds behind the growing tip to develop into branches. Jone et, al., (1989) stated that normal method of branch production is by pruning. Cutting height are designed to maximize yield while maintaining high quality and stand longevity (Daniel et al., 2007).
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