Plant Hormones and Bonsai

Bonsaiplace

Plant hormones have an affect on aspects of plant life. Every cell in a plant can produce plant hormones and these can act in that specific cell or it can be transported somewhere else. There are five major plant hormones; auxins, cytokinins, gibberellins, ethylene and abscisic acid.

5 April 2015 063

Auxins are referred to as growth hormones. These chemicals stimulate plant cells to elongate. They are mainly found in the tips of stems and branches. with this accumulation of auxins in the tips, growth in other parts are subdued. During pruning of Bonsai these tips are removed and the excess of auxins in these areas are reduced. This in turn will allow growth to take place lower down on these branches. This is the so-called apical dominant display. When the auxins are not there, the dominance is reduced and back budding will be allowed to occur. It will also allow branches lower down…

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