FTP, in this common condition of plant species a cell possesses more than two times the haploid number of chromosomes.
This condition can be created artificially by treatment with colchicine, a drug that prevents the formation of a spindle.  Examples of its use in botany include the Russian geneticist Karpechenko's 1928 creation of a cabbage-radish hybrid and Digby's 1912 production of the hybrid Kew primrose.  The latter resulted from Hugo de Vries's identification of a mutant form of the evening primrose, reproductively isolated from the parent species by its extra chromosomes.  FTP, in this common condition of plant species a cell possesses more than two times the haploid number of chromosomes.
This condition can be created artificially by treatment with colchicine, a drug that prevents the formation of a spindle.  
polyploidy