Parthenocarpy in tomatoes is induced by

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(B) Parthenocarpy is the development of fruit without fertilization. In many plants,including tomatoes,parthenocarpy can be artificially induced by th

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Auxin

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(B) Parthenocarpy is the development of fruit without fertilization. In many plants,including tomatoes,parthenocarpy can be artificially induced by the application of plant growth regulators. Auxins,such as $IAA$ (Indole$-3-$acetic acid) or synthetic auxins like $2,4-D$,are commonly used to induce parthenocarpy in tomatoes. While gibberellins can also induce parthenocarpy in some species,auxins are the primary hormones used for this purpose in tomatoes.

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