ISHS Acta Horticulturae 76: Symposium on More Profitable Use of Energy in Protected Cultivation
RESPONSE OF TOMATOES TO LOW NIGHT-HIGH DAY TEMPERATURES AND CARBON DIOXIDE ENRICHMENT |
| Author: | R.A.J. White |
| Abstract:
Carbon dioxide enrichment (CO2) increased yield and cash return of glasshouse tomatoes grown at low, medium, and high night temperatures (5, 13 and 17°C night heat thermostat settings). Heavier yields were consistently obtained at medium night temperatures with CO2. The combination of CO2, low night and high day temperature (20° heating and 27° ventilating) was only slightly inferior to medium night, high day temperature with CO2 but usually gave greater yields and cash returns than low day (16° heating 21° ventilating) medium night temperature without CO2. Increasing ventilating temperatures from 21° to 24° without CO2 generally decreased yields and returns. The effects of CO2 were similar for crops planted between February and August. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
