Plant Growth Regulators/Plant Development

Which are naturally occurring chemicals that regulate all growth and development of plants?

• Plant Hormones

• Synthetic Growth Regulators

Which are growth hormones that are produced by the apical meristem?

• Gibberelins

• Auxins

• Cytokins

• Etiolations

Which plant hormone stimulates flower bud initiation?

• Etiolations

• Cytokins

• Gibberelins

• Ethylene

What is a hormone that helps fruit ripen?

• Gibberelins

• Etiolation

• Tropism

• Ethylene

Which hormone causes internodes to lengthen?

• Gibberelins

• Etiolation

• Tropism

• Cytokins

Which hormone that is made mostly in the roots?

• Tropism

• Cytokins

• Etiolation

• Geo

A situation in which the middle stem grows at a greater rate, suppressing the side growth:

• Tropism

• Apical Dominance

What causes apical dominance?

• Gibberelins

• Auxin

• Cytokins

• Ethylene

Which PGR is a natural growth inhibitor?

• Auxin
• Gibberellin
• Cytokinin
• Abscisic Acid

Chemical messengers that are produced in the plant and control growth.

• Hormones
• Tropisms
• Compounds
• Sugars