Ecotypic variation of in vitro plantlet formation in white clover (Trifolium repens).

Sixteen Trifolium repens (white clover) genotypes of diverse geographic origin were tested for differences in organogenic potential of petiole and root derived explants. Significant differences were observed between ecotypes and explant types with respect to callus initiation and plantlet regenerability. The observed differences are attributed to existing genotypic variability as well as origin of explant tissue.