Function of ethylene
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Ethylene serves as a hormone in plants. It acts at trace levels throughout the life of the plant by stimulating or regulating the ripening of fruit, the opening of flowers, and the abscission (or shedding) of leaves.
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good evening___________,✌️✌️✌️✌️
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1. Inhibitory effect on growth :
Ethylene inhibits elongation of stem and roots and causes swelling of plant parts.
2. Flowering :
Ethylene retards flowering in most plants but also increases flowering in some plants.
3. Sex modifications :
Treatment of plants with ethylene increases the number of female flowers and fruits in cucumber.
4. Tropic responses :
Ethylene is considered as responsible for positive geotropic bending of roots.
5. Suppression of bud growth :
Ethylene inhibits the growth of lateral buds and thus causes apical dominance.
6. Fruit growth and ripening :
Ethylene stimulates the growth of fruits in some plants. It is considered responsible for the changes that occur during the ripening of fruits.
7. Root initiation :
Ethylene stimulates rooting of cuttings, initiation of lateral roots and growth of root hair.
8. Senescence :
Ethylene promotes the yellowing and senescence of leaves. It also induces flower fading in pollinated orchids.
9. Dormancy :
Ethylene is responsible for breaking the dormancy of buds and seeds.
good evening___________,✌️✌️✌️✌️
_________________
1. Inhibitory effect on growth :
Ethylene inhibits elongation of stem and roots and causes swelling of plant parts.
2. Flowering :
Ethylene retards flowering in most plants but also increases flowering in some plants.
3. Sex modifications :
Treatment of plants with ethylene increases the number of female flowers and fruits in cucumber.
4. Tropic responses :
Ethylene is considered as responsible for positive geotropic bending of roots.
5. Suppression of bud growth :
Ethylene inhibits the growth of lateral buds and thus causes apical dominance.
6. Fruit growth and ripening :
Ethylene stimulates the growth of fruits in some plants. It is considered responsible for the changes that occur during the ripening of fruits.
7. Root initiation :
Ethylene stimulates rooting of cuttings, initiation of lateral roots and growth of root hair.
8. Senescence :
Ethylene promotes the yellowing and senescence of leaves. It also induces flower fading in pollinated orchids.
9. Dormancy :
Ethylene is responsible for breaking the dormancy of buds and seeds.
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