B3.2.7 - Uses of plant hormones Flashcards
How is auxin used for fruits?
It helps to regulate fruit development
What does the hormone ethene do?
It causes plant fruits to ripen by stimulating the conversion of starch into sugar
What does the hormone gibberellins do?
It promotes growth, particularly stem elongation. They can also end the dormancy period of seeds and buds
What is the use of auxin in weed killers?
They cause the weeds to grow too fast which is turn kills the plant
What is the use of ethene for ripening fruit?
It is sprayed on fruit trees and plants so that their fruits ripen quicker
How is auxin used for promoting root growth?
It is used to produce identical plants, or clones, from cuttings
How is auxin used to delay ripening?
It is sprayed onto the fruit trees to delay ripening so they can be collected at the same time
How is auxin used for producing seedless fruit?
If auxins are applied to unpollinated flowers the plant produces seedless fruit
How is auxin or gibberellins used to control dormancy?
Seed remain dormant until conditions are ideal for growth but if auxin or gibberellins are used in commercial growers to spray them, it triggers seeds to germinate in the winter
Why is it better to store banana separately from other fruit?
Because it gives off the plant hormone ethene
