FW: Pollination - time of day criticality?
David Pilling (Sat, 11 Aug 2018 05:45:52 PDT)

Hi,

On 11/08/18 01:44, Steve Evans via pbs wrote:

From a botanical perspective many flowers ripen pollen at an earlier time than they are receptive.

"protandrous"

For an example of physical changes:

https://pacificbulbsociety.org/pbswiki/index.php/…

then click:

"Show pictures of bulbs, seeds and flower details"

and see

"...shows the undeveloped style, the third shows it when pollen receptive"

Or

https://pacificbulbsociety.org/pbswiki/index.php/…

"florets open one by one, overall this gives the effect of pollen being
produced first and then later all the florets being in a pollen
receptive state."

--
David Pilling
http://www.davidpilling.com/
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