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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