Morphological Characterization of Tetraploids of Limonium sinuatum (L.) Mill. Produced by Oryzalin Treatment of Seeds

Limonium sinuatum (L.) Mill. (2n = 2x 16) is a popular ornamental plant with dimorphism of pollen grains (type A and type B) stigmas (papilla cob-like). We applied polyploidy breeding to this species in order introduce desirable traits. Tetraploid mixoploid L. plants were successfully obtained oryzalin treatment ‘Early Blue’ seeds. All three tetraploids had increased leaf width, stomatal size, flower length, width compared those the diploid, four germinal pores grains, whereas diploid three. cob-like stigmas. Furthermore, growth cultivated tetraploid was slow, later bolting flowering times. Mixoploids Mixo-1 Mixo-3 estimated be periclinal chimeric consisting L1 layer L2 layer, Mixo-2 layer. Mixo-4 layers. Mixoploids, except Mixo-4, stigmas, B papilla These polyploids will useful as materials.