Gibberellinndi hormone ya zomera yomwe imapezeka kwambiri mu zomera ndipo imakhudzidwa ndi zochitika zambiri zamoyo monga kukula kwa zomera ndi chitukuko.Gibberellins amatchulidwa A1 (GA1) kupita ku A126 (GA126) malinga ndi dongosolo lomwe adatulukira.Ili ndi ntchito zolimbikitsa kumera kwa mbewu ndi kukula kwa mbewu, kuphukira koyambirira ndi zipatso, ndi zina zambiri, ndipo imagwiritsidwa ntchito kwambiri muzakudya zosiyanasiyana.
1. Physiological ntchito
GibberellinNdi chinthu champhamvu kwambiri komanso cholimbikitsa kukula kwa mbewu.Itha kulimbikitsa kukula kwa maselo a zomera, kutalika kwa tsinde, kukula kwa masamba, kufulumizitsa kukula ndi chitukuko, kupangitsa mbewu kukhwima msanga, ndikuwonjezera zokolola kapena kuwongolera bwino;akhoza kuswa dormancy, kulimbikitsa kumera;Chipatso cha mbewu;Zingathenso kusintha kugonana ndi chiŵerengero cha zomera zina, ndi kuchititsa kuti zomera zina zizikhala zaka ziwiri zimatulutsa maluwa m'chaka chamakono.
2. Kugwiritsa ntchito gibberellin pakupanga
(1) Limbikitsani kukula, kukhwima koyambirira ndikuwonjezera zokolola
Kuchiza masamba obiriwira ambiri okhala ndi gibberellin kumatha kufulumizitsa kukula ndikuwonjezera zokolola.Selari amapopera madzi 30 ~ 50mg/kg pafupifupi theka la mwezi atakolola, zokolola zimawonjezeka ndi 25%, tsinde ndi masamba ndi hypertrophic, ndipo msika ndi 5 ~ 6d m'mawa.
(2) Tsukani tulo ndikulimbikitsa kumera
Mu sitiroberi wowonjezera kutentha mothandizidwa ndi kulima ndi kulima pang'onopang'ono, mutatha kuphimba ndi kutentha kwa masiku atatu, ndiye kuti, pamene maluwa oposa 30% akuwonekera, perekani 5 mL ya 5 ~ 10 mg/kg ya gibberellin pa chomera chilichonse, molunjika kwambiri. masamba a mtima, omwe amatha kupanga ma inflorescence apamwamba pasadakhale., kulimbikitsa kukula ndi kukhwima koyambirira.
(3) Limbikitsani kukula kwa zipatso
Mavwende masamba ayenera kupopera 2 ~ 3mg/kg wa madzi pa zipatso zazing'ono kamodzi pa siteji ya vwende yaing'ono, zomwe zingalimbikitse kukula kwa mavwende aang'ono, koma osapopera masamba kuti apewe kuchuluka kwa maluwa amphongo.
(4) Wonjezerani nthawi yosungira
Kupopera zipatso za mavwende ndi madzi a 2.5~3.5mg/kg musanakolole kungathe kutalikitsa nthawi yosungira.Kupopera zipatso ndi madzi a 50 ~ 60mg/kg nthochi isanakololedwe kumapangitsa kuti nthawi yosungiramo zipatso ikhale yaitali.Jujube, longan ndi ma gibberellins ena amathanso kuchedwetsa kukalamba ndikutalikitsa nthawi yosungira.
(5) Sinthani chiŵerengero cha maluwa aamuna ndi aakazi kuti muwonjezere zokolola
Pogwiritsa ntchito mzere wa nkhaka zachikazi popanga mbewu, kupopera mbewu mankhwalawa 50-100 mg/kg yamadzimadzi pamene mbande zili ndi masamba enieni a 2-6 zimatha kusintha nkhaka yaikazi kukhala hermaphrodite, kutulutsa mungu wathunthu, ndikuwonjezera zokolola.
(6) Limbikitsani kudulidwa kwa tsinde ndi maluwa, konzani kuswana kwa mitundu yosankhika
Gibberellin amatha kuyambitsa maluwa amasamba amasiku atali.Kupopera mbewu mankhwalawa kapena kudontha mfundo kukula ndi 50 ~ 500mg/kg wa gibberellin akhoza kupanga kaloti, kabichi, radishes, udzu winawake, Chinese kabichi ndi zina 2a-kukula dzuwa mbewu.Kuthirira pansi pamikhalidwe yamasiku ochepa.
(7) Chepetsani phytotoxicity yoyambitsidwa ndi mahomoni ena
Pambuyo masamba bongo anavulala, mankhwala ndi 2.5-5 mg/kg njira kuthetsa phytotoxicity wa paclobutrazol ndi chlormethalin;mankhwala ndi 2 mg/kg njira akhoza kuthetsa phytotoxicity wa ethylene.Tomato ndi wovulaza chifukwa chogwiritsa ntchito kwambiri zinthu zotsutsana ndi kugwa, zomwe zimatha kumasulidwa ndi 20mg/kg gibberellin.
3. Nkhani zofunika kuziganizira
Chidziwitso pakugwiritsa ntchito:
1️⃣ Tsatirani mosamalitsa mankhwala aukadaulo, ndipo ndikofunikira kudziwa nthawi yoyenera, kukhazikika, malo ogwiritsira ntchito, pafupipafupi, ndi zina zambiri zamankhwala;
2️⃣Kugwirizana ndi zochitika zakunja, chifukwa cha kuwala, kutentha, chinyezi, nthaka, komanso njira za agronomic monga zosiyanasiyana, umuna, kachulukidwe, ndi zina zotero, mankhwalawa adzakhala ndi mphamvu zosiyanasiyana.Kugwiritsiridwa ntchito kwa owongolera kukula kuyenera kuphatikizidwa ndi miyeso yokhazikika ya agronomic;
3️⃣Osagwiritsa ntchito zowongolera kukula kwa mbewu.Chomera chilichonse chowongolera kukula chimakhala ndi mfundo yake yochitapo kanthu, ndipo mankhwala aliwonse ali ndi malire.Musaganize kuti mosasamala kanthu za mtundu wa mankhwala omwe amagwiritsidwa ntchito, adzawonjezera kupanga ndikuwonjezera mphamvu;
4️⃣Osasakaniza ndi zinthu za alkaline, gibberellin ndiyosavuta kuyimitsa ndikulephera pamaso pa alkali.Koma akhoza kusakaniza ndi acidic ndi ndale feteleza ndi mankhwala ophera tizilombo, ndi kusakaniza urea kuonjezera zokolola bwino;
Nthawi yotumiza: Jul-12-2022