Kapangidwe ka mankhwala, ntchito zake, ndi njira zogwiritsira ntchito IAA 3-indole acetic acid

Udindo waIAA 3-indole acetic acid

Amagwiritsidwa ntchito ngati cholimbikitsira kukula kwa zomera komanso chowunikira. IAA 3-indole acetic acid ndi zinthu zina za auxin monga 3-indoleacetaldehyde, IAA 3-indole acetic acid ndi ascorbic acid zimapezeka mwachilengedwe. Choyambitsa 3-indoleacetic acid pakupanga zinthu m'zomera ndi tryptophan. Ntchito yayikulu ya auxin ndiyo kulamulira kukula kwa zomera. Sikuti imangolimbikitsa kukula komanso imaletsa kukula ndi mapangidwe a ziwalo. Auxin sikuti imangokhala muufulu mkati mwa maselo a zomera, komanso imatha kulumikizidwa mwamphamvu ndi macromolecule achilengedwe ndi mitundu ina ya auxin. Palinso auxin yomwe imapanga zinthu zosiyanasiyana ndi zinthu zapadera, monga indole-acetylasparagine, indole-acetyl pentose acetate ndi indole-acetylglucose, ndi zina zotero. Izi zitha kukhala njira yosungira auxin mkati mwa maselo komanso njira yochotsera poizoni wa auxin wochuluka.

Pa mlingo wa maselo, auxin imatha kulimbikitsa kugawikana kwa maselo a cambium; Kulimbikitsa kutalikirana kwa maselo a nthambi ndikuletsa kukula kwa maselo a mizu; Kulimbikitsa kusiyana kwa maselo a xylem ndi phloem, kuthandizira mizu ya zidutswa, ndikulamulira mawonekedwe a callus.

Auxin imagwira ntchito kuyambira mbande mpaka kukhwima kwa zipatso pamlingo wa chiwalo ndi chomera chonse. Kuletsa kuwala kofiira komwe kumasinthidwa kwa auxin poletsa kutalikitsa kwa mesocotyl m'minda; Pamene indoleacetic acid ikasamutsidwira kumbali yapansi ya nthambi, geotropy ya nthambi imachitika. Pamene indoleacetic acid ikasamutsidwira kumbali ya nthambi yomwe ili ndi mthunzi, kuwala kwa nthambi kumachitika. Indoleacetic acid imayambitsa kulamulira kwakukulu; Kuchedwetsa kukalamba kwa masamba; Auxin yogwiritsidwa ntchito pamasamba imaletsa kutha, pomwe auxin yogwiritsidwa ntchito kumapeto kwa gawo lolekanitsidwa imalimbikitsa kutha. Auxin imalimbikitsa maluwa, imayambitsa kukula kwa zipatso zogonana, ndikuchedwetsa kukhwima kwa zipatso.

Njira yogwiritsira ntchitoIAA 3-indole acetic acid

1. Kunyowetsa

(1) Pa nthawi yonse ya maluwa a phwetekere, maluwawo amanyowa mu yankho la mamiligalamu 3000 pa lita imodzi kuti apangitse tomato kuphuka zipatso ndi kuphuka kwa zipatso, kupanga zipatso za phwetekere zopanda mbewu ndikuwonjezera kuchuluka kwa zipatso zomwe zimamera.

(2) Kunyowetsa mizu kumalimbikitsa mizu ya mbewu monga maapulo, mapichesi, mapeyala, zipatso za citrus, mphesa, kiwis, sitiroberi, poinsythia, carnations, chrysanthemums, maluwa, magnolias, rhododendrons, zomera za tiyi, metasequoia glyptostroboides, ndi poplar, ndipo kumayambitsa kupangika kwa mizu yothandiza, kufulumizitsa kuchuluka kwa kubereka kwa zomera. Kawirikawiri, 100-1000mg/L imagwiritsidwa ntchito kunyowetsa pansi pa zidutswazo. Pa mitundu yomwe imakonda kuzika mizu, kuchuluka kochepa kumagwiritsidwa ntchito. Pa mitundu yomwe si yosavuta kuzika mizu, gwiritsani ntchito kuchuluka kwakukulu pang'ono. Nthawi yonyowetsa imakhala pafupifupi maola 8 mpaka 24, yokhala ndi kuchuluka kwakukulu komanso nthawi yochepa yonyowetsa.

2. Kupopera

Pa ma chrysanthemums (omwe amawala kwa maola 9), kupopera madzi a 25-400mg/L kamodzi kungalepheretse maluwa kuonekera komanso kuchedwetsa maluwa.