From 8:00 to 8:30 am, the roof vents and entrance/exit doors were left open; the temperature inside the greenhouse ranged from 30 to 31 C, which was 1–2 C higher than the ambient temperature.
From 8:30 onwards, the solar irradiation rose to more than 500 W/m2, thus leading to a significant increase in indoor temperature. The difference between the indoor and ambient temperature
exceeded 4 C, and the temperature inside the greenhouse reached 34 C, which is harmful to the plants and crops