commercial uses of plant hormones
- Created by: Andrei stephen
- Created on: 20-04-15 18:25
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- commercial uses of plant hormones
- Auxins
- taking cuttings
- by dipping the end of a cutting in rooting powder it encourages new root growth
- rooting powder contains auxins fungicides and talcum powder
- seedless fruits
- by treating unpollinated flowers with auxins this can promote the growth of seedless fruit
- the auxin promotes the growth of the ovule this triggers other auxins from the tissues of the developing fruits completing the development of seedless fruits
- herbicides
- artifichall auxins are used to kill weeds
- they are transported by the phloem around the plant and none of the enzymes in the weeds can break it down
- taking cuttings
- Gibberellins
- fruit production
- it extends the time that a citrus fruit can be left on the shelf for
- it causes grape stalks to extend allowing the grapes to grow bigger
- gibberellins can be used to accelerate the rate at which break down starches in seeds into malt which is used for brewing
- sugar production
- it causes growth between the nodes of the sugar cane causing the stem to elongate
- this is good because sugarcane stores all of its sugars in the sections between these nodes
- plant breeding
- it is used by plant breeders to accelerate the process of seed formation in younger trees
- seed companies that have to harvest seeds for biennial can add gibbrelens to make them produce seeds in the first year
- fruit production
- Cytokinins
- they are used to prevent the yellowing of lettuce leaves
- they are used to mass produce plants they promote the bud and shoot growth from small samples
- this grows a small shoot with many branches these branches can then be cut off and used to make lots of smaller plats that can also be grown
- ethene
- this is a gas so scientists developed 2 cloroethlyphophonic acid that can be sprayed on the plants
- this way the ethene can be absorbed by the plant
- ethene has many uses such as
- it speeds up fruit ripening
- promoting the dropping of fruit
- promoting female sex expression in cucumbers and preventing self pollination
- promotes lateral growth in some plants yielding compact flowering stems
- it can also be useful to restrict ethenes effects
- storing fruit at low temperatures with low oxygen levels but high carbon dioxide levels prevents Ethene synthesis and prevents fruit ripening
- they can also use other inhibitors of ethene that allow flowers to remain on shelves for longer
- this is a gas so scientists developed 2 cloroethlyphophonic acid that can be sprayed on the plants
- Auxins
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