Experiment over Paphios

[Dorsetman]

So the conclusion of this experiment is temperature drop at night is responsible for Paphio blooming. Surprisingly the temperature of air-conditioner is not very cold. But it puzzles me because now is rainy season at Selangor at least for the past 4 weeks (not sure about Melaka), so the temperature difference is not very large either. Very exciting experiment!

I picked up on the words rainy season ; rain is almost always at least 10 degrees colder thgan the air at ground level - can be much more ; I did an experiment once here in UK in late summer, and found 15 ˚ C difference. So rain can have the same effect as the air-conditioned room.

BTW when I had a couple of hundred large flowered Vandas ( alas all gone after my private holocaust ) I used to go through them once a month ; pick out those that had not flowered in the last 5 pairs of leaves ( or more) and - as long as the night temperature was expected to be above 10˚ C, I would put them outside for a week. This led to a flower spike appearing within a month or so, in most cases.

[Azizan]

I picked up on the words rainy season ; rain is almost always at least 10 degrees colder thgan the air at ground level - can be much more ; I did an experiment once here in UK in late summer, and found 15 ˚ C difference. So rain can have the same effect as the air-conditioned room.

BTW when I had a couple of hundred large flowered Vandas ( alas all gone after my private holocaust ) I used to go through them once a month ; pick out those that had not flowered in the last 5 pairs of leaves ( or more) and - as long as the night temperature was expected to be above 10˚ C, I would put them outside for a week. This led to a flower spike appearing within a month or so, in most cases.

Interesting!! Never know that Vanda could be induced to spike by low night temperature. I never realize that rain could cause that large temperature difference. But I don't think that the temperature would go down hardly below 21˚C at the low land here (at least that is what the Apps said, I'm not measuring using thermometer or any device though). Sorry about your massive loss.