Aia i kēia manawa ʻelima mau ʻāpana o nā phytohormones, ʻo ia hoʻi ʻo auxin, Gibberellic Acid GA3, Cytokinin, ethylene, a me abscisic acid. I kēia mau lā, ua ʻike ʻia nā brassinosteroids (BRs) i ke ono o ka nui o nā phytohormones.

Loaʻa nā Brassinolides i nā ʻāpana huahana ʻelima:

(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)Natural Brassinolide

1. ʻO kēia huahana kahi mea kanu endogenous auxin-inducing factor, i haku ʻia me 5 mau ʻano o nā mea kanu endogenous auxins me nā indoles a me 2 mau ʻano huaora. Hoʻokumu ʻia me ka exogenous hoʻohui, hiki iā ia ke hoʻonui i ka hana o ka endogenous auxin synthase i nā mea kanu i ka manawa pōkole a hoʻoulu i ka synthesis o endogenous auxin a me ka hōʻike gen, hoʻoikaika ʻole i ka māhele cell, elongation a me ka hoʻonui ʻana, hoʻoulu i ka hoʻokumu ʻana o nā rhizomes, a he pōmaikaʻi i ka ʻO ka ulu aʻa hou a me ka hoʻokaʻawale ʻana o ka ʻōnaehana vascularization, hoʻolaha i ka hoʻokumu ʻana o nā aʻa adventitious o nā ʻokiʻoki.

ʻO INDOLE-3-BUTYRIC ACID POTASSIUM SALT (IBA-K) kahi mea hoʻoponopono ulu e hoʻoikaika ana i ke aʻa ʻana. Hoʻohana nui ʻia e hāpai i ka ulu ʻana o nā aʻa capillary hua. Ke hui pū ʻia me ka Naphthalene acetic acid (NAA), hiki ke hana ʻia i nā hua ʻaʻa. Hiki ke hoʻohana ʻia ʻo INDOLE-3-BUTYRIC ACID POTASSIUM SALT (IBA-K) no ka ʻoki ʻana i nā kumulāʻau, a me ka hoʻohui ʻana i ka fertilization flush, drip irrigation fertilizer a me nā huahana ʻē aʻe e hoʻoikaika i ke aʻa ʻana i nā mea kanu a hoʻomaikaʻi i ke ola ola o nā ʻokiʻoki.