/

          Research on induced mutation techniques for ornamental
plant improvement has been carried at Gamma Irradiation Service
and Nuclear Technology Research Center (GISC) during 1998-2002
on 3 mains ornamentals namely canna, curcuma and chrysanthemum.
In addition to ornamentals, work has been carried out on the varietal
improvement of mangosteen and mungbean. The work on ornamental
improvement has been successfully achieved and mutants have been
registered and released as new varieties in canna and chrysanthemum.
Several mutants obtained in curcuma have been multiplied for further
releasing as new varieties.

3. Chrysanthemum
              By irradiating in vitro culture of chrysanthemum variety 'Taihei' with acute
and chronic gamma rays, several mutants with variation in flower colour, form and
plant height were obtained. Six mutants were registered as new varieties. They
are Kasetsart 60-1, Kasetsart 60-2, Kasetsart 60-3, Kasetsart 60-4, Kasetsart 60-5
and Kasetsart 60-6.

Taihei
Kasetsart 60-1
Kasetsart 60-2
Kasetsart 60-3
Kasetsart 60-4
Kasetsart 60-5
Kasetsart 60-6