SOMACLONAL VARIATION OF CALADIUM [CALADIUM BICOLOR (AIT.) VENT.] FROM IN VITRO PROPAGATION

Variations in caladium [Caladium bicolor (Ait.) Vent.] ‘Arjarn Pramote’ and ‘Suvarnabhum’ from in vitro micropropagation were observed.
Unexpanded leaf segments were cultured on modified Murashige and Skoog medium (MS) supplemented with 2.69 µM 1-naphthalene acetic acid (NAA) and 17.76 µM N⁶-benzyladenine (BA) for 4 months.
From 3 morphological groups – leaf pattern, petiole and leaf colour, regenerated caladium plants were divided into 14 and 5 types for ‘Arjarn Pramote’ and ‘Suvarnabhum’, respectively.
Variations were found in 13 types with multiple variants from 2-7 characters in ‘Arjarn Pramote’, while 4 types with multiple variants from 2 and 4 characters occurred in ‘Suvarnabhum’. The occurrence of variants was 66.35 and 56.00% in regenerated plants from ‘Arjarn Pramote’ and ‘Suvarnabhum’, respectively.
For ‘Arjarn Pramote’, leaf color variants were observed at the highest frequency of 64.42% while leaf pattern variants and petiole variants were found at 51.92 and 22.11%, respectively.
Similarly, 35.00% leaf color variants, 34.00% leaf pattern variants and 0.00% petiole variants were found in ‘Suvarnabhum’.

International Conference on Quality Management in Supply Chains of Ornamentals

U. Somkanea, C. Thapsithar, A. Thongpukdee

Caladium, micropropagation, somaclonal variation, variants

https://doi.org/10.17660/ActaHortic.2007.755.47