PGR GA3 Gibberellic Acid CAS 77-06-5

(I) Hoʻolalelale i ka ulu ʻana o ke kumu
ʻO ka waika Gibberellic ka hopena physiological koʻikoʻi e hāpai i ka ulu ʻana o nā mea kanu, ʻo ia ka mea hiki ke hāpai i ka elongation cell.Hoʻoulu ka Gibberellic acid i ka ulu a loaʻa iā ia nā ʻano penei:

1. ʻO ka waika Gibberellic e pili ana i ka ulu ʻana o nā mea kanu holoʻokoʻa, ʻo ia ka mea e hoʻoikaika nui ai i ka ulu ʻana o nā kumu lāʻau, ʻoi aku ka nui o nā ʻano o ka hopena mutant dwarf.Akā, ʻaʻohe kuleana koʻikoʻi o ka elongation gibberellic acid in vitro stem i ka hoʻoulu ʻana i ka ulu ʻana o ka liʻiliʻi a me ka IAA ma ka mea kanu holoʻokoʻa, akā ʻoki ʻia nā kumu elongate kino he kuleana nui i ka hoʻolaha ʻana.ʻO ka waikawa Gibberellic e hoʻoikaika i ka lōʻihi o nā mea kanu dwarf ma muli o ke kumu o ka biosynthesis gibberellic acid i pāpā ʻia i nā ʻano dwarf, e hoʻohaʻahaʻa i ke kino gibberellic acid ma mua o nā ʻano maʻamau o ka sake.
2. No ka ulu ʻana o ka ʻanuʻu, hoʻonui nui ka gibberellic acid i kekahi mau internodes elongation e lōʻihi, ma mua o ka hoʻonui ʻana i ka helu o nā ʻāpana.
3. ʻOi aku ka kiʻekiʻe ma mua o ka ʻoi aku ka maikaʻi o ka noi noi ʻana, ʻaʻole hiki iā ia ke pale i ka ulu ʻana, e hōʻike mau ana i ka hopena nui loa o ka hoʻolaha ʻana, ʻo ka hoʻolaha ʻana o ka auxin i loaʻa ka manaʻo maikaʻi loa i ka hihia o ka ulu ʻana o ka mea kanu.
4. ʻOkoʻa loa nā ʻano mea kanu like ʻole a me nā ʻano o ka gibberellic acid reaction i ka hoʻohana ʻana i ka gibberellic acid i nā mea kanu (celery, lettuce, leeks), kahi ʻai, nā mea kanu e like me ke kī a me ka ramie, loaʻa nā hua kiʻekiʻe.

(II) Hoʻoulu pua

Hoʻopili ʻia ka ʻokoʻa o ka ʻōpuʻu o nā mea kanu kiʻekiʻe e ka lōʻihi o ka lā (photoperiod) a me nā hopena wela.No ka laʻana, no ka mea kanu biennial, koi i kekahi helu o nā lā o ka mālama anu (ʻo ia ka vernalization) e pua, akā ʻaʻole i hōʻike ʻia i ka bolting, pua pua rosette ulu.Inā kēia mau mea kanu me ka vernalization e pili ana i ka gibberellic acid, ʻaʻole ma ke kaʻina haʻahaʻa wela hiki ke hoʻoulu i ka pua, a maopopo ka hopena.Eia kekahi, hiki iā ia ke hoʻololi i ka hoʻokomo ʻana i ka lā lōʻihi o nā mea kanu pua i kekahi mau lā lōʻihi, akā ʻo ka gibberellic acid ma nā lā pōkole pua pua ʻokoʻa me ka hoʻolaha ʻole ʻana i ka hoʻokaʻawale ʻana no nā ʻōpuʻu pua mea kanu, ua loaʻa i ka gibberellic acid i kona pua hāmama ka hopena hoʻoikaika nui.E like me ka gibberellic acid hiki ke paipai i ka stevia, cycads a me Cupressaceae, Taxodiaceae pua mea kanu.

(III) Wehe moe

Me ka 2 ~ 3μg · g gibberellic acid treatment dormant potato hiki ke ulu koke ia, hiki ke hoʻokō i nā pono o ka ulu ʻana i ka ʻuala i nā manawa he nui i ka makahiki.ʻO ka māmā pono e hoʻoulu i nā hua e pono ai nā haʻahaʻa haʻahaʻa, e like me nā hua lettuce, ka paka, ka basil, ka plum a me ka apple, etc., hiki i ka gibberellic acid ke pani i ka māmā a me nā mahana haʻahaʻa e wāwahi i ka dormancy, no ka mea hiki i ka gibberellic acid ke hoʻoulu i ka α- amylase, ʻO ka synthesis o nā protease a me nā enzyme hydrolytic ʻē aʻe e hōʻemi i ka hoʻohaʻahaʻa ʻana o nā mea mālama hua no ka ulu ʻana o ka embryo a me nā pono ulu.I ka ʻoihana hana pia, me ka mālama ʻana i ka waika gibberellic me ka ʻole o ka hoʻoulu ʻana i ka hua bale bale, hiki ke hoʻoulu i ka hana α-amylase, hoʻonui ʻia ke kaʻina hana saccharification i ka wā brewing a haʻahaʻa i ka ʻai ʻana o ka hanu, a laila e hōʻemi ana i nā kumukūʻai.

(IV) Hoʻoikaika i ka ʻokoʻa kāne

No nā mea kanu pua dioecious o ke kānana hoʻokahi ma hope o ka mālama ʻana me ka gibberellic acid, e hoʻonui ana i ka nui o nā pua kāne;No nā mea kanu wahine nā mea kanu dioecious, e like me ka mālama ʻana me ka gibberellic acid, kuhikuhi pū i ke kāne.Ma kēia ʻano ka hopena o ka auxin a me ka gibberellic acid a me ka ethylene e kū'ē.

(V) Nā hopena physiological ʻē aʻe
Hiki i ka ʻakika Gibberellic ke hoʻoikaika i ka hopena o ka IAA ma ka hoʻoulu ʻana i nā mea kanu a me ka hoʻolaha ʻana i kekahi mau mea kanu a me ka parthenocarpy hua, e hoʻopaneʻe i ka senescence o ka lau.Eia kekahi, hiki i ka waika gibberellic ke hoʻoikaika i ka mahele cell a me ka hoʻokaʻawale ʻana, ʻo ka gibberellic acid e hāpai i ka mahele cell ma muli o ka pōkole o ka pae G1 a me S.Akā ʻo ka waika gibberellic i kāohi i ka hoʻokumu ʻana o nā aʻa adventitious akā ʻokoʻa ka auxin.