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Old 08-16-2009, 06:39 PM   #1
paul 74
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Default Why do Morning Glories Bloom Early in the Day...

...and go into hiding later in the day?
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Old 08-16-2009, 06:42 PM   #2
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Why do morning glories bloom only when the sun hits them in the morning?
A.W.

Peabody

A. They don't necessarily bloom when the sun hits them. Morning glory flowers usually open before dawn, says Roger Hangarter, an associate professor of biology and plant physiologist at Indiana University.

The flowers die that same day. Look carefully at a vine of continually blooming morning glories over a few days, says Hangarter. You'll see that it's a different flower opening every day. Day lilies are the same -- the act of opening is each blossom's last act. That's why they are called day lilies.

What causes these flowers to open before dawn is a combination of light and temperature signals. The changing length of the day with the advance of the seasons helps orchestrate flowers' development, and they open once they are mature. Plants also have biological clocks that trigger flowers to open. These clocks are so powerful that plants, once their clocks are set by the natural day-night cycle, will open their flowers on cue even in a dark closet.

Moon flowers are close relatives of morning glories -- but they're on the night shift. They open at dusk and are dead by morning.

These flowers, and their daily cycles, evolved so that the flowers would be open at the time of day when their pollinators were active. Morning glories, originally from a tropical climate, are pollinated by insects that are active early in the morning. Moon flowers are pollinated by nocturnal moths, says Hangarter.

Many flowers try another strategy -- they open, and stay open, until they are pollinated. Then, they die. The Easter lily is one such flower. Florists cut the pollen-producing organs out of the flowers to extend their lives -- and to keep the pollen off the furniture.

If you're not willing to rise before dawn and wait hours to watch a morning glory open, you can watch time-lapse movie flowers on Hangarter's web page. The page also has instructions on how to load Quicktime, a software program that enables you to watch film clips on web pages.

http://sunflower.bio.indiana.edu/rhangart< for films of flowers on the move.
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Old 08-16-2009, 07:34 PM   #3
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Probably has something to do with their name
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Old 08-16-2009, 10:55 PM   #4
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Smoke the seeds
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Old 08-16-2009, 11:06 PM   #5
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Is that anything like morning wood?
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Old 08-16-2009, 11:11 PM   #6
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If it's not a poll, I just don't care.
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Old 08-17-2009, 12:52 AM   #7
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Default Why do Morning Glories Bloom Early in the Day...

That's where we keep the morning.
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Old 08-17-2009, 01:08 AM   #8
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Quote:
Originally Posted by Corvette Kid View Post
If it's not a poll, I just don't care.
Click the image to open in full size.
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Old 08-17-2009, 01:32 AM   #9
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Click the image to open in full size.
I knew it.
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Old 08-17-2009, 01:33 AM   #10
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Originally Posted by NeutronVette View Post
Is that anything like morning wood?
good question ... maybe it's a fancy way of waking up early and sticking yer d*ck through a hole in the wall and having some hungry chicks on the other side..
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Old 08-17-2009, 07:42 PM   #11
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Quote:
Originally Posted by jfb View Post
Why do morning glories bloom only when the sun hits them in the morning?
A.W.

Peabody

A. They don't necessarily bloom when the sun hits them. Morning glory flowers usually open before dawn, says Roger Hangarter, an associate professor of biology and plant physiologist at Indiana University.

The flowers die that same day. Look carefully at a vine of continually blooming morning glories over a few days, says Hangarter. You'll see that it's a different flower opening every day. Day lilies are the same -- the act of opening is each blossom's last act. That's why they are called day lilies.

What causes these flowers to open before dawn is a combination of light and temperature signals. The changing length of the day with the advance of the seasons helps orchestrate flowers' development, and they open once they are mature. Plants also have biological clocks that trigger flowers to open. These clocks are so powerful that plants, once their clocks are set by the natural day-night cycle, will open their flowers on cue even in a dark closet.

Moon flowers are close relatives of morning glories -- but they're on the night shift. They open at dusk and are dead by morning.

These flowers, and their daily cycles, evolved so that the flowers would be open at the time of day when their pollinators were active. Morning glories, originally from a tropical climate, are pollinated by insects that are active early in the morning. Moon flowers are pollinated by nocturnal moths, says Hangarter.

Many flowers try another strategy -- they open, and stay open, until they are pollinated. Then, they die. The Easter lily is one such flower. Florists cut the pollen-producing organs out of the flowers to extend their lives -- and to keep the pollen off the furniture.

If you're not willing to rise before dawn and wait hours to watch a morning glory open, you can watch time-lapse movie flowers on Hangarter's web page. The page also has instructions on how to load Quicktime, a software program that enables you to watch film clips on web pages.

http://sunflower.bio.indiana.edu/rhangart< for films of flowers on the move.
Thank you for the reasonable reply! No comment on other replies.
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Old 08-17-2009, 07:44 PM   #12
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Quote:
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Thank you for the reasonable reply! No comment on other replies.
What else would you expect from CFOT, out of 100 responses, 1 is helpful
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Old 08-17-2009, 08:23 PM   #13
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Because if they bloomed later in the day they would be called afternoon glories or perhaps evening glories.
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Old 08-17-2009, 08:39 PM   #14
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I can't believe someone actually HAD to ask this question...
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Old 08-17-2009, 09:07 PM   #15
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Originally Posted by DVNTST8 View Post
I can't believe someone actually HAD to ask this question...
Especially on a Car Forum! Maybe a sewing or Womans Day forum.
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Old 08-17-2009, 11:52 PM   #16
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they bloom in the morning because they go to bed at a reasonable hour, don't stay out late drinking and eating greasy food, don't chase strange women, pay their bills ontime, wear sensible shoes, a hat when it is sunny or cold, always signal when changing lanes.....

they are responsible flowers: early to bed, early to rise, makes a flower healthy, wealthy, and wise.

can't believe it took this long to get the complete answer.
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Old 08-18-2009, 01:13 AM   #17
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Quote:
Originally Posted by paul 74 View Post
...and go into hiding later in the day?
Because they can.



...rraH
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Old 08-18-2009, 01:45 AM   #18
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And typing the name didn't even generate a spark of a clue?
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Old 08-18-2009, 01:45 AM
 
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