Gibberellic Acid GA3 bụ onye na-ahụ maka uto osisi na-agbasa nke a na-ejikarị na osisi mkpụrụ osisi. Ọ nwere mmetụta nke ime ngwa ngwa na mmepe osisi na ịkwalite elongation cell. A na-ejikarị ya eme ka parthenocarpy, chekwaa ifuru na mkpụrụ osisi.

Hormone na-eto eto bụ ụdị pesticide a na-eji ahazi uto na mmepe osisi. Ọ bụ ihe sịntetik nwere mmetụta homonụ nke osisi sitere n'okike. Ọ bụ usoro ọgwụgwọ pesticide pụrụ iche. Ọ nwere ike ịhazi uto na mmepe nke osisi mgbe ọnụọgụ ngwa kwesịrị ekwesị

Enwere ụdị phytohormones ise amara ugbu a, ya bụ auxin, Gibberellic Acid GA3, Cytokinin, ethylene na abscisic acid. Na nso nso a, brassinosteroids (BRs) ejirila nke nta nke nta mata dị ka ngalaba nke isii nke phytohormones.

Brassinolides dị n'ụdị ngwaahịa ise:

(1)24-trisepibrassinolide: 72962-43-9 C28H48O6

(2)22,23,24-trisepibrassinolide:78821-42-9

( 3)28-epihomobrassinolide: 80843-89-2 C29H50O6

(4)28-homobrassinolide:82373-95-3 C29H50O6

(5)Brassinolide eke.