Correct position of floral parts over thalamus in mustard plant is:

Correct position of floral parts over thalamus in mustard plant is:
  1. Gynoecium occupies the highest position, while the other parts are situated below it
  2. Margin of the thalamus grows upward, enclosing the ovary completely, and other parts arise below the ovary
  3. Gynoecium is present in the centre and other parts cover it partially
  4. Gynoecium is situated in the centre, and other parts of the flower are located at the rim of the thalamus, at the same level

Solution

Hypogyny: In a hypogynous flower, ovary occupies the topmost position on the thalamus, while the stamens, petals and sepals are separately and successively present below the ovary. The ovary in a hypogynous flower is said to be superior. E.g, Brinjal, China rose, mustard, etc.

Asked in: NEET 2020 (Phase 2)

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