Explain the characteristic features of wind pollinated flowers how are they different from insect pollinated flowers
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Features of wind pollinated flowers are-
1. The flowers are small
2. They are usually not brightly coloured and often dull green
3. They do not produce scent or nectar.
4. The stamens are long and hang out of the flower to be exposed to wind.
5. The anthers are large and loosely attached to the filament so that the slightest wind may move them (versatile).
6. Pollen is produced in very large quantities.
7. Pollen grains are light, dry and smooth so that they can easily be carried by the wind.
8. The stigmas are feathery and hang out of the flower to trap the pollen grain.
The difference between wind pollinated and insect pollinated are
Wind pollinated
1. Flowers are unisexual, dull coloured, without scent and nectar.
2. Pollen grains are produced in large number, many are wasted.
3. Pollen grains are small, light and smooth.
4. Stigma is long and hang out of the petals, feathery or sticky.
5. Stamens are long and protrude above petals.
Eg:- Maize, Rice
Insect pollinated
1. Flowers are brightly coloured, scented and secrete nectar.
2. Less pollen grains are produced because they are transported mechanically by insects
3. Pollen grains are larger, sticky and spiny.
4. Stigma is often deep in corolla and small.
5. Stamens may be within corolla tube.
Eg:- China rose, Pea
1. The flowers are small
2. They are usually not brightly coloured and often dull green
3. They do not produce scent or nectar.
4. The stamens are long and hang out of the flower to be exposed to wind.
5. The anthers are large and loosely attached to the filament so that the slightest wind may move them (versatile).
6. Pollen is produced in very large quantities.
7. Pollen grains are light, dry and smooth so that they can easily be carried by the wind.
8. The stigmas are feathery and hang out of the flower to trap the pollen grain.
The difference between wind pollinated and insect pollinated are
Wind pollinated
1. Flowers are unisexual, dull coloured, without scent and nectar.
2. Pollen grains are produced in large number, many are wasted.
3. Pollen grains are small, light and smooth.
4. Stigma is long and hang out of the petals, feathery or sticky.
5. Stamens are long and protrude above petals.
Eg:- Maize, Rice
Insect pollinated
1. Flowers are brightly coloured, scented and secrete nectar.
2. Less pollen grains are produced because they are transported mechanically by insects
3. Pollen grains are larger, sticky and spiny.
4. Stigma is often deep in corolla and small.
5. Stamens may be within corolla tube.
Eg:- China rose, Pea
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