Meta-topolin and Related Cytokinins as a Solution to Some In Vitro Problems

Plant micropropagation does not always run smoothly. With a number of plants, problems such as hyperhydricity, shoot-tip necrosis, early senescence, and poor rooting are bottlenecks. These difficulties prevent the large-scale exploitation of elite genotypes of food crops, ornamental plants and fruit, forest, and timber trees. In this chapter the current evidence is summarized that shows that important in vitro problems can be alleviated using the right type and concentration of meta-topolin or a member of its expanding group of derived analogues.