The correct floral formula of soyabean is
- [figure]
- [figure]
- [figure]
- [figure]
Answer
(3) [figure]
Solution
Soyabean belongs to family Fabaceae. As per NCERT, the Fabaceae flower is zygomorphic (%) and bisexual.
The calyx has five sepals, gamosepalous, i.e. K(5). The corolla has five petals, papilionaceous – one posterior standard, two lateral wings and two anterior petals fused to form the keel, i.e. C1+2+(2).
The androecium has ten stamens, diadelphous (nine fused + one free), i.e. A(9)+1, and the gynoecium is monocarpellary with a superior ovary, i.e. G1.
∴ The floral formula is %, bisexual, K(5) C1+2+(2) A(9)+1 G1.
Answer: (3)