TABLE 1
Frequencies of chromosome doubling of plantlets of different
generations obtained from diploid, triploid and tetraploid of
Phal. aphrodite subsp. formosana and diploid of
Phalaenopsis bellina by the method in accordance
with the present invention.
Frequency of chromosome doubling (%)
Phalaenopsis lines/ Protocorm First Second Third
species generation generation generation generation
Diploid Phal. aphrodite 1.8 25.4 61.6 66.2
subsp. Formosana
Triploid Phal. aphrodite 0.8 8.6 33.2 37.2
subsp. formosana
Tetraploid Phal. 0 3.7 10.6 16.0
aphrodite
subsp. formosana
Diploid Phalaenopsis 0 7.7 20.1 56.7
bellina
Average frequency 0.7 11.4 31.4 44.0