The figure given above shows the growth of pollen tube. Observe the figure and answer the following question.
The site of germination of pollen grains is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Stigma
Option (1) Stigma — Correct. Pollination brings the pollen grain to the stigma. There the compatible pollen grain germinates and puts out a pollen tube, which grows down the style to the ovule.
NCERT Extract:
Pollination – “… As mentioned earlier, following compatible pollination, the pollen grain germinates on the stigma to produce a pollen tube through one of the germ pores (Figure 1.12a). The contents of the pollen grain move into the pollen tube. Pollen tube grows through the tissues of the stigma and style and reaches the ovary (Figure 1.12b, c).”
