Plant Growth Regulators

It is the process of increasing the number of plants of a particular species or cultivar.

• Propagation

• Growth

• Plant Growth Regulators

• Seed Germination

It is also known as plant growth substances, plant hormones, or phytohormones?

• Seed Growth Hormones

• Plant Growth Regulators (PGR)

• Growth Promoter

• Plant Nutrition

The discovery of the five major groups of PGRs has been accidental. All this started with the observation of the father and his son to coleoptiles of canary grass. Who are they?

• Wilbert and Robert Gore.

• Charles Darwin and his son Francis Darwin

• Sakichi and Kiichiro Toyoda.

• Zacharias and Hans Janssen.

A type of PGR named from the Greek word that means to grow or increase?

• Ethylene

• Auxins

• Gibberellins

• Cytokinins

Type of PGR that increases the length of grape stalks thus increasing the number of grapes in a cluster.

• Plant hormone

• Auxin

• Gibberellins

• Phytohormone

It increases the length of the sugarcane stem thus increasing the yield of sugar?

• Growth substance

• Gibberellins

• Plant hormones

• Phytohormones

It is a type of PGR that produces new leaves, developing shoot buds, young fruits, and even promotes leat longevity?

• Plant hormones

• Gibberellins

• Cytokinins

• Phytohormones

It is highly effective in fruit ripening?

• Ethylene

• Enzymes

• Auxins

• Pectinase

It is the stress hormone?

• Abscisic Acid

• Ethylene

• Enzymes

• Ethrel

Which of the plant growth regulators would you use if you are asked to quickly ripen a fruit?

• Auxins

• Enzymes

• Ethylene

• Stress Hormone