Keiki, the Hawaiian word for "baby" (pronounced "kay-key"), refers to a plant produced asexually by an orchid plant, usually used when referring to Dendrobiums, Phalaenopsis, or Vandaceous orchids. The Hawaiian language (Hawaiian ‘Ōlelo Hawai‘i) is an Austronesian language that takes its name from Hawai'i, the largest island in the tropical Asexual reproduction is a form of reproduction which does not involve Meiosis, Ploidy reduction or Fertilization. Dendrobium, abbreviated as Den in horticultural trade is a large Genus of tropical Orchids that consists of about 1200 Species The baby plant is an exact clone of the mother plant, sometimes flowering while still attached to the mother plant. Cloning in Biology is the process of producing populations of genetically-identical individuals that occurs in nature when organisms such as Bacteria, Insects
Keiki forms
- A regular keiki is a small plant growing from one node along the flower stem, instead of a branch. A stem is one of two main structural axes of a Vascular plant. This is induced by the accumulation of growth hormones at that point, either naturally, or by the application of keiki paste.
- A basal keiki is a baby plant growing from the base of the mother plant (see image). Sometimes a keiki may bloom while still attached to the mother plant.
Keiki paste
Keiki paste is a cytokinin hormone which induces growth in the node of an orchid inflorescence. Cytokinins (CK are a class of Plant growth substances ( Plant Hormones that promote Cell division. Hormones (from Greek ὁρμή - "impetus" are chemicals released by cells that affect cells in other parts of the body An inflorescence is a group or cluster of Flowers arranged on a stem that is composed of a main Branch or a complicated arrangement of branches It should not be confused with paste or powder containing auxins, which are used to force the production of roots. Auxins are a class of Plant growth substance (often called Phytohormone or Plant hormone)
Nodes on spikes will form either vegetative growth (keiki) or floral growth (a branch with flower buds). If the node tissue is already differentiated so that it will become a floral branch, there is no way to change the result. The trick is to get the paste onto the node before it is differentiated. However, there is no way to predict if an undifferentiated node will become a keiki or a branch.
Removing Keikis
Keikis should be left on the mother plant until they develop a healthy root system and have two or three leaves. At this point, they can be carefully removed with a sharp knife and planted in their own pot.
- Regular Keikis are cut below and above the stem, leaving a small piece of stem on the baby plant.
- Basal Keikis may be left on the mother plant until they drop off on their own, or they can be cut off when their roots are at least a few centimeters long.
A separated keiki can be expected to flower after 18-24 months.
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