By Onyeanu
Kuwait 
how does ph affect sex determination in cucumi sativus
On plant
Cucumis
14 Jun, 2011
Answers
In my experience, temperature has far more effect than pH. Temperatures above 38ยบ C often cause the plants to produce only male flowers.
15 Jun, 2011
Not a problem we have in Wales then...
15 Jun, 2011
LOL! I should hope not! May be pretty common in Kuwait, though.
15 Jun, 2011
:)
S
16 Jun, 2011
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I don't think it has an affect. I suppose if your PH is way out, it could effect flowering due to nutrient availability and therefore plant health, but flower sex,i don't think so... If it did i would be very interested to here about it!
This further information on the subject may interest you -
'Sex Determination in the Monoecious Species Cucumber Is Confined to Specific Floral Whorls'
- http://www.plantcell.org/content/13/3/481.abstract
14 Jun, 2011