Growth hormone producing apical dominance is:

✅Explanation:
-Auxin is the primary plant hormone responsible for apical dominance. It's produced in the apical meristem (growing tip) of shoots and travels down the stem. This auxin concentration suppresses the growth of lateral buds (axillary buds) located lower on the stem. This allows the plant to prioritize its resources towards the main shoot's upward growth.

📌Other Options:
-Gibberellin: Gibberellins are a group of plant hormones with various functions, including promoting stem elongation, seed germination, and leaf development. While they can influence bud growth in some cases, they don't directly cause apical dominance.
-Ethylene: Ethylene is a gaseous plant hormone involved in various processes like fruit ripening and leaf senescence (aging). It can sometimes inhibit bud growth, but it's not the main factor in apical dominance.
-Cytokinin: Cytokinin is a plant hormone that often acts as an antagonist to auxin. It can stimulate cell division and promote bud growth, thereby potentially countering apical dominance.

🛑 Related Terminology:
-Apical dominance: A phenomenon in plants where the main shoot (stem) grows faster and inhibits the growth of lateral buds, resulting in a taller, straighter plant structure.
-Apical meristem: The growing tip of a shoot where new plant cells are produced.
-Lateral bud (axillary bud): A bud located at the junction of a leaf and stem with the potential to develop into a new shoot or branch.