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May 20, 2020 6:42 PM CST
Name: Robert R.
Wharton, TX (Zone 9a)
Will pollen collected at the end of the day, in the afternoon when sun is no longer overhead... will the pollen still be fertile and useable ...?

Mid-day time temps are in low 90's
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May 20, 2020 7:23 PM CST
Name: Maurice
Grey County, Ontario (Zone 4b)
The research that was done on the effect of temperature on pollen by Arisumi indicates that temperatures above 85 F are detrimental to its fertility. Most pollen will be less fertile than that collected at lower temperatures in the early morning and kept cool, but the pollen of different cultivars will differ in how strongly their pollen loses fertility at high temperatures. Arisumi tested six cultivars and the pollen of two of them was about 70% as good at 95 F as at 75 F. The other four cultivars had poorer pollen.
Maurice
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May 20, 2020 7:26 PM CST
Name: Robert R.
Wharton, TX (Zone 9a)
admmad said:The research that was done on the effect of temperature on pollen by Arisumi indicates that temperatures above 85 F are detrimental to its fertility. Most pollen will be less fertile than that collected at lower temperatures in the early morning and kept cool.....


Thanks.... I was afraid that might be the case... appreciate the info.

RR
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May 21, 2020 7:53 PM CST
Name: Roger & Karen
Birmingham, Al (Zone 7b)
Butterflies Critters Allowed Daylilies Hummingbirder Region: Alabama Seed Starter
Enjoys or suffers hot summers Plant and/or Seed Trader
So do i
Every home needs a daylily, and every daylily needs a home.
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