gibberellin | ˌdʒɪbəˈrɛlɪn | noun [mass noun ] any of a group of plant hormones that stimulate stem elongation, germination, and flowering.
Tropical Orchids
gibberellin | ˌdʒɪbəˈrɛlɪn | noun [mass noun ] any of a group of plant hormones that stimulate stem elongation, germination, and flowering.