26
Question
Which of the following plant growth regulators (PGRs) promote root initiation, flowering, and induced parthenocarpy?
Which of the following plant growth regulators (PGRs) promote root initiation, flowering, and induced parthenocarpy?
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Solution
The correct option is B Auxin
Auxins promote root initiation at a concentration which otherwise is inhibitory for growth of the intact root. Auxins are often employed for inducing flowering in litchi and pineapple. Application of auxins to unpollinated pistils make them develop into seedless fruits or parthenocarpic.
Gibberellin chiefly promotes stem elongation.
Cytokinin promotes cell division.
Ethylene helps in fruit ripening.
Auxin
Auxins promote root initiation at a concentration which otherwise is inhibitory for growth of the intact root. Auxins are often employed for inducing flowering in litchi and pineapple. Application of auxins to unpollinated pistils make them develop into seedless fruits or parthenocarpic.
Gibberellin chiefly promotes stem elongation.
Cytokinin promotes cell division.
Ethylene helps in fruit ripening.
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