The invention discloses a method for doubling a haplobiont of
gerbera. The method for doubling the haplobiont of the
gerbera comprises the following steps: double haplobiont plants are finally determined when tissue-cultured breeding seedlings of the haplobiont of the
gerbera go through strong seedlings and multiplication culture, chemical
mutagenesis culture, rejuvenation culture, variant plantsscreening,
breed conservation of primary plants, propagation, rooting culture, mutagenic strains reselection, identification of stomata guard cells
chloroplast counting method, and identification of
root tip chromosome counting method. The
ploidy doubling cultivation of haplobiont of the gerbera and identification processes are optimized, while
mutation rate of the haplobiont is increased, and theaccuracy of
ploidy identification is guaranteed. The method for doubling the haplobiont of the gerbera can effectively reduce the formation and interference of chimeras, reduce the damage of chemicaldrugs to the plants to reduce death rate of the haplobiont, and keep variation rate of the haplobiont between 60-80%, and provides the double haplobiont with excellent traits and high stability for breeding of new variety of the gerbera.