question_answer 27)

  Gibberellins promote the formation of ...... flowers on genetically ..... plants in Cannabis whereas ethylene promotes formation of ....... flowers on genetically ...... plants.

Answer:

                (a) The hormone, gibberellin (i)Produce the phenomenon of bolting, i.e., the growth of the inter nodal region of stem in rosette plants. Induces seed germination and break bud and seed dormancy. (b) The rice seedling/plant show excessive growth in their inter nodal region when get infected with fungus Gibberella fujikuroi. This fungus produces excessive amount of plant hormone GA which makes plants taller than the normal plant foolishly and many result into death of the plant.