Indima kaIAA 3-indole acetic acid
Isetshenziswa njengesikhuthazi sokukhula kwezitshalo kanye nesihlaziyi. I-IAA 3-indole acetic acid kanye nezinye izinto ze-auxin ezifana ne-3-indoleacetaldehyde, i-IAA 3-indole acetic acid kanye ne-ascorbic acid zikhona ngokwemvelo emvelweni. Isandulela se-3-indoleacetic acid yokwenza izinto ezitshalweni yi-tryptophan. Umsebenzi oyisisekelo we-auxin ulele ekulawuleni ukukhula kwezitshalo. Ayikhuthazi nje kuphela ukukhula kodwa futhi inomphumela wokuvimbela ukukhula kanye nokwakheka kwezitho. I-Auxin ayikho nje kuphela esimweni samahhala ngaphakathi kwamaseli ezitshalo, kodwa futhi ingaboshwa ngokuqinile kuma-macromolecule ezinto eziphilayo kanye nezinye izinhlobo ze-auxin. Kukhona futhi i-auxin engakha ama-complexes ngezinto ezikhethekile, njenge-indole-acetylasparagine, i-indole-acetyl pentose acetate kanye ne-indole-acetylglucose, njll. Lokhu kungaba uhlobo lokugcina i-auxin ngaphakathi kwamaseli kanye nendlela yokususa ubuthi be-auxin ngokweqile.
Ezingeni lamaseli, i-auxin ingakhuthaza ukuhlukaniswa kwamaseli e-cambium; Ikhuthaza ukwanda kwamaseli egatsha futhi ivimbele ukukhula kwamaseli ezimpande; Ikhuthaza ukuhlukaniswa kwamaseli e-xylem kanye ne-phloem, ikhuthaze ukuhluma kwezimpande, futhi ilawule ukwakheka kwe-callus.
I-Auxin idlala indima kusukela ekukhuleni kwembewu kuya ekuvuthweni kwezithelo kokubili ezingeni lesitho kanye nesitshalo sonke. Ukuvimbela ukukhanya okubomvu okuguqukayo kwe-auxin ekulawuleni ukunwebeka kwe-mesocotyl ezitshalweni; Lapho i-indoleacetic acid idluliselwa ohlangothini olungezansi lwegatsha, kuvela i-geotropy yegatsha. Lapho i-indoleacetic acid idluliselwa ohlangothini olunomthunzi lwegatsha, kuvela i-phototropism yegatsha. I-indoleacetic acid ibangela ukugqama okuphezulu; Ibambezela ukuguga kwamaqabunga; I-Auxin efakwa emaqabungeni ivimbela ukugqashuka, kuyilapho i-auxin efakwa ekugcineni kwesendlalelo esihlukanisiwe ikhuthaza ukugqashuka. I-Auxin ikhuthaza ukuqhakaza, ikhuthaza ukuthuthukiswa kwezithelo ezingafani ngokobulili, futhi ibambezela ukuvuthwa kwezithelo.
Indlela yokusebenzisaIAA 3-indole acetic acid
1. Ukucwilisa
(1) Ngesikhathi sokuqhakaza okuphelele kwamatamatisi, izimbali zicwiliswa esixazululweni samamiligremu angu-3000 ngelitha ukuze kubangele ukuhluma kwezithelo kanye nokwakheka kwezithelo zamatamatisi, kwakha izithelo zamatamatisi ezingenambewu futhi kwandise izinga lokwakheka kwezithelo.
(2) Ukucwilisa izimpande kukhuthaza ukucwilisa kwezitshalo ezifana nama-apula, amapentshisi, amapheya, izithelo ze-citrus, amagilebhisi, ama-kiwi, ama-strawberry, ama-poinsythia, ama-carnations, ama-chrysanthemums, ama-rose, ama-magnolia, ama-rhododendrons, izitshalo zetiye, ama-metasequoia glyptostroboides, kanye ne-poplar, futhi kubangela ukwakheka kwezimpande ezisizayo, kusheshise izinga lokuzala kwezitshalo. Ngokuvamile, i-100-1000mg/L isetshenziselwa ukucwilisa isisekelo sezicucu. Ngezinhlobo ezivame ukucwilisa izimpande, kusetshenziswa ukucwilisa okuphansi. Ngezinhlobo ezingelula ukuzicwilisa, sebenzisa ukucwilisa okuphakeme kancane. Isikhathi sokucwilisa cishe singamahora angu-8 kuya kwangu-24, kanye nokucwilisa okuphezulu kanye nesikhathi esifushane sokucwilisa.
2. Ukufutha
Kuma-chrysanthemum (ngaphansi komjikelezo wokukhanya wamahora angu-9), ukufafaza isisombululo esingu-25-400mg/L kanye kungavimbela ukubonakala kwamahlumela ezimbali futhi kubambezele ukuqhakaza.
Isikhathi sokuthunyelwe: Julayi-07-2025