Before describing the invention in

Before describing the invention in greater detail, the word “comprise” or variations such as “comprises” or “comprising,” will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.

It should be appreciated that the scope of the present invention shall not be limited to any relevant prior art, incorporated herein by reference, to the present invention.

Throughout the specification, unless the context requires otherwise, the technical terms, as used herein, has the same meaning as one of ordinary skill commonly known in the art.

Currently, colchicine is generally used to treat protocorms or protocom-like bodies (PLBs) of an orchid for inducing ployploid plants of orchids. Although the chemical-induction technique can be successful in chromosome doubling, it can have disadvantages of operating in complicated procedure and problems of dealing with the toxicity of chemical agents which are unacceptable.