Question

Describe the various parts of Brassica Campestris?  

Answer 1

Flower is reproductive part of plant. It has following parts: -

Calyx: -

This is the outermost whorl. It consists of four free sepals. They are green in

colour. With the passage of time they become yellow. Their function is to protect

the inner parts of flower.

Corolla: -

This is the second whorl. It consists of colourful petals. They are yellow in colour.

Their function is to attract the insects so that pollination takes place.

Androecium: -

This is the third whorl. It consists six free stamens. It is also called male

reproductive part. Each stamen has two parts: -

 i) A lower stalk called filament.

 ii) Upper swollen part called anther.

Nectar is present in the base of stamens. This nectar is food of insects.

Gynoecium: -

This is the forth whorl. It consists of carpel. They are female reproductive parts of

plant. Carpel has following parts: -

 i) Lower most swollen part is the ovary.

 ii) Stalk is present over ovary is called style.

iv) Over stalk less swollen part is called stigma.

In ovary many ovules are present which ripens into seeds.