Igenzura ryikura ryibihingwa ririmo ubwoko bwinshi, buriwese ufite uruhare rwihariye nurwego rwo gushyira mubikorwa. Ibikurikira nuburyo bumwe na bumwe bugenzura imikurire yibihingwa nibiranga bifatwa nkaho byoroshye gukoresha kandi neza:

Igenzura ryikura ryibimera (PGRs) ni ibihimbano bya chimique bihimbano bigira ingaruka zingirakamaro hamwe nuburyo bwimiti isa na hormone yibimera. Igenzura ryikura ryibihingwa biri mubyiciro byinshi byimiti yica udukoko kandi ni urwego rwimiti yica udukoko igenzura imikurire niterambere, harimo ibinyabuzima byunganirangingo bisa na hormone yibimera na hormone byakuwe mubinyabuzima.

Auxin ni indole-3-acide acide, hamwe na molekile ya C10H9NO2. Numusemburo wambere wavumbuwe kugirango uteze imbere imikurire. Ijambo ry'icyongereza rikomoka ku ijambo ry'Ikigereki auxein (gukura). Ibicuruzwa byiza bya acide indole-3-acetike ni kirisiti yera kandi ntishobora gushonga mumazi. Byoroshye gushonga mumashanyarazi kama nka Ethanol na ether. Ihindurwamo byoroshye kandi ihinduka roza itukura munsi yumucyo, kandi ibikorwa byumubiri nabyo biragabanuka. Indole-3-acide acide mu bimera irashobora kuba muburyo bwubuntu cyangwa muburyo buboshye.

Itandukaniro mubikorwa: 24-epibrassinolide ikora 97%, mugihe 28-homobrassinolide ikora 87%. Ibi byerekana ko 24-epibrassinolide ifite ibikorwa byinshi muri brassinolide ya chimique.