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When the anthers mature earlier than the...

When the anthers mature earlier than the stigma of ones own flower, the condition is known as

A

Herkogamy

B

Protandry

C

Heterostyly

D

Heterogamy

Text Solution

Verified by Experts

The correct Answer is:
B
When stamens mature earlier than the stigma, it is known as as protandry and the flowers are called protandrous e.g., Coriander, Jasmine, Sunflower etc.
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When the pollers is transferred from anther to stigma of same flower, the pollination is called autogamy. (a) Cleistogamous flowers are invariably autogamous. Explain. (b) Geitonogamy is functionally cross pollination, but genetically similar to autogamy. Identify the statement. (Kerala Board 2017)

Knowledge Check

  • The transfer of pollen grains from the anther of a flower to the stigma of another flower with the help of wind is known as _______ .

    A
    Entamophily
    B
    Anemophily
    C
    Ornithophily
    D
    Melacophily

  • When a plant produces two kind of spores the condition is known as

    A
    homospory
    B
    heterospory
    C
    apospory
    D
    sporogenesis

  • Assertion: Protandry is a condition in which anthers mature earlier than stigma. Reason: Cleistogamous flowers are bisexual and never open.

    A
    If both Assertion and Reason are true and Reason is corret explanation of Assertion
    B
    If both Assertion and Reason are true and Reason is not corret explanation of Assertion
    C
    If Assertion is true but Reason is false
    D
    If both Assertion and Reason are false

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