Which of the following prevents self-pollinat | vedclass

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(D) Self-pollination is prevented by several mechanisms in plants to promote cross-pollination:$1$. $Self-sterility$ (or self-incompatibility): $A$ ge

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All of the above

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(D) Self-pollination is prevented by several mechanisms in plants to promote cross-pollination:$1$. $Self-sterility$ (or self-incompatibility): $A$ genetic mechanism where pollen grains fail to germinate on the stigma of the same flower.$2$. $Herkogamy$: $A$ physical or mechanical barrier between the anther and the stigma of the same flower, preventing self-pollination.$3$. $Dichogamy$: $A$ condition where the anthers and stigma of the same flower mature at different times (protandry or protogyny).Therefore, all these mechanisms prevent self-pollination.

Which of the following prevents self-pollination?

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