EFFECT OF DAY AND NIGHT TEMPERATURES ON EARLINESS AND FRUITPRODUCTION IN CUCUMBER

The influence of day and nighttemperature, during the periode from planting till start of production, on earliness and the aftereffect on production of a greenhouse winter cucumber crop was studied in the climate glasshouse at Naaldwijk.

Increasing nighttemperatures from 12–20°C did decrease earliness; a further increase till 24°C did not influence earliness.
Only a slight effect on production and yield was found.

Increasing daytemperatures from 20–26°C did decrease earliness.
A daytemperature of 17°C disturbed plant development completely.
A positive effect on yield and production was found from increasing day-temperature, probably caused by a better shoot development.

Working-party on Greenhouse Cucumber

J. van de Vooren

https://doi.org/10.17660/ActaHortic.1981.118.18