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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
(Click for full-size)

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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