Application of chitosan oligosaccharide in promoting cytothesis

The present invention relates to a chitosan oligosaccharide for promoting cell repair, the present invention also provides a method of application of a composition comprising chitosan oligosaccharide for promoting repair cells, wherein each stage of development of the crop for application of the composition crop processing, comprising the administration of crop germination or seedling composition or applying the composition before flowering crops or application of the composition flowering crops or application of the composition after flowering plants, seedling or sprout stage, or in , before flowering, anthesis, two or more phases after flowering administered sequentially in any composition or applying the composition occurs when the crop wound, or a wound before administering the composition appears in the expected crop. Wherein the weight percent of the composition Oligochitosan 0.004% -0.0195%. The present inventors have found that chitosan oligosaccharide in promoting cell repair, which enables any cause rapid wound-healing, and wound appeared to avoid infection.