Question

Explain the process of germination of pollen on stigma

Answer 1

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of a flower. ... after the pollen lands on suitable stigma, it has to reach the female germ cells which are in ovary. for this, a tube grows out of pollen grains and travel through style to reach the ovary

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Answer 2

Answer:

The germination of pollen grain in vitro and the growth of pollen tube in the pistil of rice were observed with a microscope. ... Meanwhile, a small amount of callose began to deposit in the pollen tubes, a great deal of callose was observed at 50 min after pollination, whereas the pollen grain began to shrink.