Ncert Exercises & Solutions

40. On germination a seed first produces shoots with leaves, flowers appear later,

A. Why do you think this happens?

B. How is this advantageous to the plant?

A. As soon seed germinates, the plant enters into vegetative growth period. This Period takes light stimulus (a critical length of light exposed to different plant, i.e., photoperiod) and synthesise the florigen (a flowering hormone) which induce flowering.

B. The vegetative growth period prepares the plant to bear reproductive structures like flowers, fruits and seeds, and allows it to grow, mature and reproduce.

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