give function cytokinin ethylene & absiscis acid. give an example of chemotropism,hydrtropism
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chemotropism - growth of pollen grains towards ovary.
hydrotropism- growth of roots in soil towards water
cytokinin- promotes cell enlargement.
ethylene- promotes ripening of fruits
abscisc acid - promotes dormancy in seed and fruit
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The growth of a plant part due to chemical stimulus is known as chemotropism or Chemotropism is the movement of a part of the plant in response to a chemical stimulus. The growth of pollen tube towards the ovule induced by a sugary substance as stimulus. This is an example of positive chemotropism.
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