photosynthesis Plants absorb sunlight and turn that energy into food; the process is known as photosynthesis. This is a compound word made up of photo (which means light) and synthesis (which means to put together). Think of a synthesizer, which puts together different sounds to produce music. A plant uses light to put together chemical compounds and turn them into carbohydrates: food. Although the word can be used to describe any process that uses light to connect compounds, the word is almost always used to describe a plant's method of making food.
Hereâs a great resource on growing lettuces (permaculture) in a tropical climate. Herbs. Cilantro, Basil, Italian flat leaf parsley, and rosemary thrive well even under tropical conditions and without needing a high elevation. Legumes. Mung bean is the easiest to grow and will make a great cover crop.
johnmerr(11) Citrus are full sun tropical crops; the heat is not the problem; and it seems you are doing the right thing with water. Curling indicates the need for water; but in your heat you would expect the trees to do that in the hottest times.