Applications of Plant Hormones in Agriculture and Horticulture

The video discusses the applications of three types of plant hormones in agriculture and horticulture: auxins, gibberellins, and ethene. Auxins promote cell growth and are used in weed killers, rooting powders, and tissue cultures. Gibberellins induce germination, flowering, and fruit production, and are used to produce seedless fruits. Ethene is a gaseous hormone that accelerates fruit ripening, facilitating the transport of fruits like bananas.

What is one of the primary uses of auxins in agriculture?

• To increase leaf size

• To slow down plant growth

• To stimulate root growth in cuttings

• To enhance photosynthesis

How do gibberellins affect seed dormancy?

• They have no effect on dormancy

• They end dormancy

• They make seeds resistant to water

• They prolong dormancy

Which plant hormone can induce flowering at any time of the year?

• Cytokinins

• Ethene

• Gibberellins

• Auxins

What is the role of ethene in fruit ripening?

• It makes fruits larger

• It speeds up the ripening process

• It prevents fruits from ripening

• It changes the color of fruits

Why are bananas transported in an atmosphere containing ethene?

• To keep them green

• To make them grow larger

• To ensure they ripen by the time they reach stores

• To prevent them from being damaged