Ngwakọta Sodium Nitrophenolates (Atonik) + Urea nwere ike ịkọwa dị ka "onye mmekọ ọla edo" n'ịgbakọta ndị na-achịkwa na fatịlaịza. N'ihe gbasara mmetụta, usoro nhazi zuru oke nke uto na mmepe nke Compound Sodium Nitrophenolates (Atonik) nwere ike ime ka enweghi ihe oriri na-edozi ahụ n'oge mmalite, na-eme ka ihe oriri na-edozi ihe ọkụkụ dịkwuo oke na iji urea na-arụ ọrụ nke ọma;

DA-6 + Ethephon, Ọ bụ ihe na-arụ ọrụ nke ọma, nke siri ike na onye na-ahụ maka ebe obibi maka ọka. Iji Ethephon naanị ya na-egosi mmetụta dwarfing, akwụkwọ sara mbara, akwụkwọ ndụ akwụkwọ ndụ gbara ọchịchịrị, akwụkwọ elu, na mgbọrọgwụ ndị ọzọ, mana akwụkwọ na-adịkarị mfe ịka nká. Ojiji nke DA-6 + Ethephon compound agent maka ọka iji chịkwaa uto siri ike nwere ike ibelata ọnụ ọgụgụ osisi site na 20% ma e jiri ya tụnyere iji Ethephon naanị, ma nwee mmetụta doro anya nke ịbawanye arụmọrụ yana igbochi ịka nká.

S-Abscisic Acid (ABA) bụ homonụ nke osisi. S-Abscisic Acid bụ onye na-ahụ maka uto ihe ọkụkụ sitere n'okike nke nwere ike ịkwalite uto osisi achikọtara ọnụ, melite ogo uto osisi, ma kwalite ịkwasa akwụkwọ osisi. N'ime mmepụta ugbo, Abscisic Acid bụ nke a na-ejikarị eme ihe iji mee ka ihe ọkụkụ na-eguzogide onwe ya ma ọ bụ usoro mmeghari maka nhụjuanya, dị ka imeziwanye nkwụsị nke ụkọ mmiri ozuzo, nguzogide oyi, nguzogide ọrịa, na nguzogide nnu-alkali.

4-Chlorophenoxyacetic acid (4-CPA) bụ ihe na-achịkwa uto osisi phenolic. 4-Chlorophenoxyacetic acid (4-CPA) nwere ike itinye uche na mgbọrọgwụ, ị ga, epupụta, ifuru, na mkpụrụ osisi. Ọrụ ndu ya na-adịru ogologo oge. Ya physiological mmetụta yiri endogenous hormones, na-akpali akpali cell nkewa na anụ ahụ dị iche iche, na-akpali ovary mgbasa, inducing parthenocarpy, na-akpụ mkpụrụ na-enweghị mkpụrụ, na-akwalite mkpụrụ ntọala na mkpụrụ mgbasa.