Photo by Melody

Definition of callus

Categorized under "General"

Definition as written by jody:

The tissue formed when a stem, leaf or twig is cut

Definition as written by flowox:

A hardened tissue that forms to protect the exposed areas of cuttings

Definition as written by Alucard:

Is undifferentiated plant tissue developed as a wound response mechanism by plants in response to stress or physical damage. Can be induced in vitro through defined ratios of Auxin and cytokinin levels.

Thumbnail of callus by Alucard
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Definition as written by DILLY:

I consider the CALLUS a favorable step toward rooting a cutting. It is the tissue or membrane that has developed over the raw cut end, with a somewhat raised rim around the edge. This indicates there will be coming roots instead of rot. I have taken out a cutting after a while to see if there is a callus. If there is no callus after due time there will be the beginning of decay.

Assuming there is adequate length after I cut off the bad end, Irinse the cutting in disinfectant and start again in fresh potting mix.

There have been many successes.

Definition as written by Windy:

Protective tissue formed by the cambium to aid healing around a wound.

Definition as written by Joan:

In orchids, the callus is a protuberance or growth that is usually on the lip of an orchid

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