Li-brassinolides tsohle tse teng hona joale 'marakeng li ka aroloa ka mekhahlelo e' meli ho latela pono ea theknoloji ea tlhahiso: brassinolide ea tlhaho le synthetic brassinolide.

S-abscisic acid e na le litlamorao tsa 'mele joalo ka ho etsa hore bud dormancy, ho tšolla ha makhasi le ho thibela kholo ea lisele,' me e boetse e tsejoa e le "dormant hormone".

E ile ea sibolloa ka 1960 mme e ile ea bitsoa ka phoso hobane e amana le ho putlama hoa mahlaku a semela. Leha ho le joalo, hona joale hoa tsebahala hore ho oa ha makhasi le litholoana tsa semela ho bakoa ke ethylene.

Trinexapac-ethyl ke ea cyclohexanedione plant growth regulator, gibberellins biosynthesis inhibitor, e laolang kholo e matla ea limela ka ho fokotsa litaba tsa gibberellins. Trinexapac-ethyl e ka monyela ka potlako mme e tsamaiswa ke dikutu tsa dimela le makgasi, mme e bapala karolo e kgahlanong le bodulo ka ho fokotsa bophahamo ba semela, ho eketsa matla a kutu, ho kgothalletsa ho eketseha ha metso ya bobedi, le ho hlahisa metso e tswetseng pele hantle.

Paclobutrazol ke moemeli oa temo o ka fokolisang molemo o moholo oa kholo ea limela. E ka monngoa ke metso ea lijalo le makhasi, ea laola kabo ea limatlafatsi tsa semela, ea liehisa sekhahla sa kholo, ea thibela kholo e ka holimo le bolelele ba kutu, le ho khutsufatsa sebaka sa internode. Ka nako e ts'oanang, e khothalletsa phapang ea lipalesa, e eketsa palo ea lipalesa, e eketsa sekhahla sa ho beha litholoana, e potlakisa karohano ea lisele.