Which of the following statements is not correct?
Insects that consume pollen or nectar without bringing about pollination are called pollen-nectar robbers.
Pollen germination and pollen tube growth are regulated by chemical compounds of pollen interacting with those of the pistil.
Some reptiles have also been reported as pollinators in some plant species.
Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.
several statements are confirmed as correct: insects that take rewards without pollinating are known as pollen/nectar robbers ; pollen-pistil interaction is a chemical dialogue that regulates germination and growth ; and reptiles like geckos and garden lizards have been documented as pollinators . The fourth statement is incorrect because while the pistil identifies compatible pollen, multiple grains of the same (compatible) species can germinate on the stigma simultaneously, and many pollen tubes can grow through the tissues of the style towards the ovary .
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