Questions tagged [pollination]

Pollination is the process by which pollen from the male anthers is transferred to the female reproductive organs of a plant, thereby enabling fertilization to take place.

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Why do pollen grains tend to remain in the 2 celled stage in most angiosperms?

In over 60% of angiosperms, pollen grains are shed off at 2-celled stage (Vegetative cell and a generative cell) and in the other 40% it is shed off at 3-celled stage (Vegetative cell and 2 male ...
TheRedHyacinth's user avatar
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Induced mutation for fruit

If we induce a plant to be polyploidy would that affect other parts of the plant, for example when the plant produces a pollen grain would it still be (n) or would it be different?
Flora561's user avatar
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Questions regarding the four pollination mechanisms of papilionaceous flowers

I want to understand the four mechanisms of pollination in papilionaceous flowers: pump/piston, explosive, valvular and brush. The topic is lightly touched upon in this part of a Wikipedia article, ...
BreadFromOuterSpace's user avatar
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The pollination of lupins

Do lupins produce nectar? According to this study it seems like there are conflicting conclusions regarding this. And in this study the supposed inability for Lupinus argenteus to produce nectar is ...
BreadFromOuterSpace's user avatar
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Are self pollinated plants genetically different?

Gametes in pollen grain are formed during meiosis in the anther. And meiosis produces genetically different gametes. When the pollens grains are carried to the stigma to fertilise the egg cell of the ...
radastro's user avatar
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Why are monarch butterflies attracted to particular flowers but not others?

I have a "Purple Emperor Butterfly Bush" (Buddleia davidii 'Purple Emperor') and sure enough it does attract butterflies. I have seen monarch butterflies using it, which confuses me, because ...
Imprisoned Rhesus's user avatar
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Limitations of the Self-Incompatibility Mechanism in Plants

For a given plant species, how many types of S-loci exists to prevent self-pollination? I would like to know how often a plant stops fertilization process by other plants, thinking the pollens belong ...
Miladiouss's user avatar
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Is dandelion a sporophyte or gametophyte?

My text book claims all land plants undergo alternation of generation. However, I don't see how it could be with dandelion. The flower head gets pollinated and then turn back on itself. After a while ...
Winter's user avatar
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How does peanut pollination work?

I got curious about peanuts and when I found some photos on the internet, I could see they have flowers. However peanut fruit is underground. How does pollination of peanut flowers affect the fruit ...
Tomáš Zato's user avatar
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3 votes
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Is flowers nectar secreation influenced by bees/pollinators?

Nectar secretion by flowers is influenced by many environmental factors e.g. water supply and air temperature [1]. My question is: do bees (or any other pollinator) influence it too? I can imagine ...
mattia.b89's user avatar
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What is the use of male plants in nature? [closed]

If pollination is done by insects like bees and through the air, then what is the use of male plants in nature?
Rusell Thorn's user avatar
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How much cost would artificial pollination add to common products (fruits etc.)?

I've read about ecosystem services and their possible valuation - statements like "honeybee pollination service in the US is worth 1.6 billion dollars". Is data available on how this would affect the ...
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