Lọwọlọwọ awọn ẹka marun ti a mọ ti phytohormones, eyun auxin, Gibberellic Acid GA3, Cytokinin, ethylene, ati abscisic acid. Laipẹ, awọn brassinosteroids (BRs) ti jẹ idanimọ diẹdiẹ bi ẹka pataki kẹfa ti phytohormones.

Brassinolides wa ni awọn ẹka ọja marun:

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

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

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

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

(5) Brassinolide Adayeba

1.This ọja ni a ọgbin endogenous auxin-inducing ifosiwewe, eyi ti o ti kq 5 iru ti ọgbin endogenous auxins pẹlu indoles ati 2 iru vitamin. Ti a ṣe agbekalẹ pẹlu afikun exogenous, o le mu iṣẹ ṣiṣe ti auxin synthase endogenous pọ si ninu awọn ohun ọgbin ni igba diẹ ati ki o fa iṣelọpọ ti auxin endogenous ati ikosile pupọ, ni aiṣe-taara ṣe agbega pipin sẹẹli, elongation ati imugboroosi, fa dida awọn rhizomes, ati pe o jẹ anfani si Idagba gbongbo tuntun ati iyatọ eto vascularization, ṣe igbega dida ti awọn gbongbo adventitious ti awọn eso.

INDOLE-3-BUTYRIC ACID POTASSIUM SALT (IBA-K) jẹ olutọsọna idagbasoke ọgbin ti o ṣe agbega rutini irugbin na. O jẹ lilo akọkọ lati ṣe igbelaruge idagbasoke ti awọn gbongbo capillary irugbin na. Nigbati o ba darapọ pẹlu Naphthalene acetic acid (NAA), o le ṣe sinu awọn ọja rutini. INDOLE-3-BUTYRIC ACID potasiomu iyọ (IBA-K) le ṣee lo fun gige rutini ti awọn irugbin, bi daradara bi fifi idapọ danu, ajile irigeson drip ati awọn ọja miiran lati ṣe igbelaruge rutini irugbin ati ilọsiwaju oṣuwọn iwalaaye ti awọn eso.