Why plants in the tropics do not have growth rings?

Answer 1

double negatives can be confusing, but logically you're asking why trapical rain forest trees have rings, if i'm correct in that then i can say that the question makes an interesting assumption: that rainforest trees have rings.

when trees go through seasonal growth they create the dark and light portions of the trees ,light bands are made in times of high growth like summer and during rainy seasons and the dark portions are formed because the xylem forming in the middle doesn't grow as quickly so becomes denser, this happens in the winter or in dry seasons.

if you were to put at oak tree in a lab without any seasons you would have an extremely hard time telling how old it is because the rings would be either very hard to see or impossible to see at all unless via chemical means. the constant growth will make it so that it is hard to see how old the tree is.

that being said, some trees in tropical areas have rings but that's because of relatively dry and wet seasons, wet seasons promote growth and dry seasons don't.

Answer 2

Plants in the tropics do not have distinct growth rings because they do not experience distinct seasonal changes like plants in temperate regions. In tropics, the weather is relatively consistent throughout the year, which results in continuous growth without distinct periods of dormancy that create growth rings.

Answer 3

cos the temp and water availability is even trout the year. no seasons=no rings