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What is pollination ? How is it brought about ? Differentiate between self & cross pollination .
 

 ransfer of pollen grains from the anther to the stigma of a flower by insects,water and wind is called pollination.pollination may be grouped as of 2 types-

1.self pollination

2.cross pollination

self pollination-if the pollen grains land on the stigma of the same flower then it is called self pollination.

cross pollination-if the pollen grains land on the stigma of the other flower or the flower of the same type is called cross pollination.

without pollination fertilization could not take place.now the question arises how the pollen grains land on the stigma.

so the answer is that stigma is sticky so that the pollen grains could land on them

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it is the transfer of pollen from anther to stigma.. it is brought by two factors, wind and insects..... self pollination is the transfer of pollen from anther to stigma in the same flower ie the flower is bisexual whereas the transfer of pollen from anther to stigma from one flower to another is cross pollination the flower may be uni sexual or bisexual.

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Dear Student,

@ Ragini: You can refer to the answer provided by Kamil.

@ kamil:  It's a great answer that you have provided! Keep up the good effort! you deserve a

Self pollination: It occurs in bisexual flowers. It is of two types:

Cross pollination: It can occur in both unisexual and bisexual flowers.

In this type of pollination, pollen is transferred from the anther of one flower of one plant to stigma of another flower of another plant.

Hope this helps,

Cheers!!!

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It is the process of tranfer of of pollen grains
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