Indima yeIAA 3-indole acetic acid
Isetyenziswa njengento ekhuthaza ukukhula kwesityalo kunye ne-reagent yokuhlalutya. I-IAA 3-indole i-acetic acid kunye nezinye izinto ze-auxin ezifana ne-3-indoleacetaldehyde, i-IAA 3-indole i-acetic acid kunye ne-ascorbic acid zikhona ngokwemvelo kwindalo. I-precursor ye-3-indoleacetic acid ye-biosynthesis kwizityalo yi-tryptophan. Umsebenzi osisiseko we-auxin usekulawuleni ukukhula kwezityalo. Ayikhuthazi kuphela ukukhula kodwa inefuthe lokuthintela ukukhula kunye nokwakheka kwamalungu. I-Auxin ayikho kuphela kwindawo ekhululekileyo ngaphakathi kweeseli zezityalo, kodwa inokubotshwa ngokuqinileyo kwi-biological macromolecules kunye nezinye iintlobo ze-auxin. Kukho kwakhona i-auxin enokwenza ii-complex ezinezinto ezikhethekileyo, ezifana ne-indole-acetylasparagine, i-indole-acetyl pentose acetate kunye ne-indole-acetylglucose, njl.
Kwinqanaba leselula, i-auxin inokuvuselela ukuhlukana kweeseli ze-cambium; Ukuvuselela ukwanda kweeseli zesebe kunye nokuthintela ukukhula kweengcambu zeengcambu; Khuthaza ukwahlukana kweeseli ze-xylem kunye ne-phloem, uququzelele i-rooting ye-cuttings, kwaye ulawule i-morphogenesis ye-callus.
I-Auxin idlala indima ukusuka kwizithole ukuya ekuvuthweni kwesiqhamo kuwo omabini amanqanaba omzimba kunye nesityalo esipheleleyo. Ukuvinjwa kokukhanya okubomvu okubuyiselwayo kwe-auxin ekulawuleni ukwandiswa kwe-mesocotyl kwizithole; Xa i-indoleacetic acid idlulisela kwicala elingezantsi lesebe, i-geotropy yesebe iyenzeka. Xa i-indoleacetic acid idluliselwa kwicala elinomthunzi wesebe, i-phototropism yesebe iyenzeka. I-Indoleacetic acid ibangela ukubusa okuphezulu; Ukulibazisa ukuvela kwamagqabi; I-Auxin esetyenziswe kumagqabi inqanda ukuchithwa, ngelixa i-auxin esetyenziswe kwisiphelo esiphezulu somaleko odibeneyo ikhuthaza ukuchithwa. I-Auxin ikhuthaza ukudumba kweentyatyambo, ikhuthaza ukukhula kweziqhamo ezingaqhelekanga, kwaye ilibazise ukuvuthwa kweziqhamo.
Indlela yokusetyenziswa kweIAA 3-indole acetic acid
1. Ukumanzisa
(1) Ngexesha lokuntshula kweentyatyambo kweetumato, iintyatyambo zifakwe kwisisombululo se-3000 milligrams ilitha nganye ukuze kubangele i-parthenogenic fruiting kunye nokumiselwa kweziqhamo kwiitumato, zenze iziqhamo zetumato ezingenazimbewu kunye nokunyusa izinga lokumisela iziqhamo.
(2) Ukufunxwa kweengcambu kukhuthaza ukuhluma kwezityalo ezinje ngama-apile, iipesika, iiperesi, iziqhamo zesitrasi, iidiliya, i-kiwis, amaqunube, i-poinsythia, i-carnations, i-chrysanthemums, i-roses, i-magnolias, i-rhododendrons, izityalo zeti, i-metasequoia glyptovardation, kunye neengcambu, kunye neengcambu. ukukhawulezisa isantya sokuzala kwezityalo. Ngokuqhelekileyo, i-100-1000mg / L isetyenziselwa ukucwina isiseko sokusika. Kwiintlobo ezixhatshazwayo kwi-rooting, i-concentration ephantsi isetyenziswa. Kwiintlobo ekungelula ukuzicothula, sebenzisa i-concentration ephezulu kancinane. Ixesha lokucwina limalunga ne-8 ukuya kwiiyure ze-24, kunye nokugxila okuphezulu kunye nexesha elifutshane lokucwina.
2. Ukutshiza
Kwi-chrysanthemums (phantsi komjikelezo wokukhanya kweeyure ezili-9), ukutshiza isisombululo se-25-400mg / L kanye kunokuthintela ukubonakala kweentyatyambo kunye nokulibazisa ukudubula kweentyatyambo.
Ixesha lokuposa: Jul-07-2025