Gibberellik acid 10% TA

Physiological nyhuv

Txhawb nqa elongation thiab kev loj hlob ntawm stems
Qhov tseem ceeb tshaj plaws physiological nyhuv ntawm gibberellinic acid (gibberellin) yog los txhawb kev loj hlob ntawm cov nroj tsuag, feem ntau vim hais tias nws muaj peev xwm txhawb cell elongation. Kev nce qib GA muaj cov yam ntxwv hauv qab no:

1. Txhawm rau txhawb kev loj hlob ntawm tag nrho cov nroj tsuag, GA kev kho mob tuaj yeem txhawb kev loj hlob ntawm cov nroj tsuag stems, tshwj xeeb tshaj yog rau cov dwarf mutant ntau yam, raws li qhia hauv daim duab 7-11. Txawm li cas los xij, GA tsis muaj qhov cuam tshuam loj rau qhov elongation ntawm cov qia cais, thaum IAA muaj qhov cuam tshuam loj rau elongation ntawm cov qia cais. Yog vim li cas vim li cas GA txhawb nqa qhov elongation ntawm cov nroj tsuag dwarf yog tias cov ntsiab lus ntawm GA nyob rau hauv cov tsiaj nyeg qis dua li ntawm cov tsiaj ib txwm vim muaj kev cuam tshuam ntawm endogenous GA synthesis.

2. Txhawb nqa internode elongation GA feem ntau ua rau cov internode elongation uas twb muaj lawm, es tsis txhawb nqa qhov nce ntawm cov nodes.

3. Tsis muaj cov nyhuv inhibition ntawm superoptimal concentration Txawm hais tias qhov concentration ntawm GA yog siab heev, nws tseem tuaj yeem qhia qhov kev txhawb nqa siab tshaj plaws, uas yog qhov txawv txav ntawm qhov xwm txheej uas auxin txhawb nqa cov nroj tsuag kev loj hlob nrog kev pom zoo.

4. Cov lus teb ntawm cov nroj tsuag sib txawv thiab ntau yam rau GA yog txawv heev. Cov txiaj ntsig siab tuaj yeem tau txais los ntawm kev siv GA ntawm zaub (celery, lettuce, leek), nyom, tshuaj yej, ramie thiab lwm yam qoob loo.

Induced paj
Qhov sib txawv ntawm paj buds nyob rau hauv qee cov nroj tsuag siab dua yog cuam tshuam los ntawm hnub ntev (photoperiod) thiab kub. Piv txwv li, biennials yuav tsum muaj qee hnub ntawm kev kho mob qis (piv txwv li, vernalization) rau paj, txwv tsis pub lawv pom rosette kev loj hlob yam tsis muaj bolting flowering. Yog tias GA tau siv rau cov nroj tsuag uas tsis muaj kev ntseeg no, cov paj tuaj yeem raug ntxias tsis muaj qhov kub thiab txias, thiab cov nyhuv yog pom tseeb heev. Tsis tas li ntawd, GA tseem tuaj yeem ua rau muaj paj paj ntawm qee cov nroj tsuag ntev ntev es tsis txhob siv cov nroj tsuag ntev, tab sis GA tsis muaj kev txhawb nqa rau paj paj sib txawv ntawm cov nroj tsuag luv luv. Piv txwv li, GA tuaj yeem txhawb kev paj ntawm stevia, ntoo ntoo thiab cypress thiab fir nroj tsuag.

Ua rau dormancy
Kev kho cov qos yaj ywm dormant nrog 2 ~ 3μg·g GA tuaj yeem ua rau lawv germinate sai, thiaj li ua tau raws li qhov xav tau ntawm kev cog qos yaj ywm ob peb zaug hauv ib xyoos. Rau cov noob uas xav tau lub teeb thiab qhov kub thiab txias kom tawg, xws li lettuce, haus luam yeeb, Perilla, plum thiab txiv apple noob, GA tuaj yeem hloov lub teeb thiab qis kub kom tawg dormancy, vim GA tuaj yeem ntxias cov synthesis ntawm α-amylase, protease thiab lwm yam hydrolases, thiab catalyze degradation ntawm cov khoom khaws cia hauv cov noob rau kev loj hlob thiab kev loj hlob ntawm embodiment. Hauv kev lag luam npias kev lag luam, kev kho cov noob qoob loo uas tsis muaj germination nrog GA tuaj yeem ua rau α-amylase ntau lawm, ua kom cov txheej txheem saccharification thaum lub sij hawm brewing, thiab txo cov pa noj ntawm germination, yog li txo nqi.

Txhawb txiv neej paj txawv
Qhov kev faib ua feem ntawm txiv neej paj tau nce ntxiv tom qab GA kev kho mob rau cov nroj tsuag nrog tib tsob nroj. Poj niam dioecious nroj tsuag, yog kho nrog GA, kuj yuav tsim txiv neej paj. Cov nyhuv ntawm GA hauv qhov kev hwm no yog qhov sib txawv ntawm auxin thiab ethylene.

Physiological nyhuv

GA tseem tuaj yeem ntxiv dag zog rau cov nyhuv ntawm IAA ntawm cov as-ham, txhawb kev tsim cov txiv hmab txiv ntoo thiab parthenocarpy ntawm qee cov nroj tsuag, thiab ncua cov nplooj senescence. Tsis tas li ntawd, GA tseem tuaj yeem txhawb nqa kev faib tawm ntawm tes thiab kev sib txawv, thiab GA txhawb nqa cell faib vim qhov luv ntawm G1 thiab S theem. Txawm li cas los xij, GA inhibits qhov tsim ntawm adventitial keeb kwm, uas txawv ntawm auxin.

Txoj kev siv

1. Txhawb kev tsim cov txiv hmab txiv ntoo los yog cov txiv hmab txiv ntoo tsis muaj noob. Txau dib nrog 50-100mg / kg kua ib zaug thaum lub sij hawm flowering los txhawb cov txiv hmab txiv ntoo thiab nce yield. 7-10 hnub tom qab flowering, cov txiv hmab txiv ntoo uas muaj ntxhiab tsw tau txau nrog 200-500mg / kg ntawm cov kua ib zaug los txhawb kev tsim cov txiv hmab txiv ntoo dawb.

2. Txhawb kev loj hlob ntawm celery 2 lub lis piam ua ntej sau, tshuaj tsuag nplooj nrog 50-100mg / kg kua tshuaj ib zaug; Txau cov nplooj 1-2 zaug 3 lub lis piam ua ntej sau kom loj hlob stems thiab nplooj.

3. Soak tubers nrog 0.5-1mg / kg tov rau 30min ua ntej sowing qos yaj ywm kom tawg dormancy thiab txhawb germination; Soaking noob nrog 1mg / kg ntawm kua tshuaj ua ntej sowing yuav txhawb germination.

4. Los tiv thaiv kev laus thiab cov nyhuv tshiab Cov Qej moss nrog 50mg / kg tshuaj kho rau 10-30min, citrus ntsuab txiv hmab txiv ntoo lub sij hawm nrog 5-15mg / kg tshuaj tshuaj tsuag txiv hmab txiv ntoo ib zaug, txiv tsawb tom qab sau nrog 10mg / kg tshuaj tov kua txiv hmab txiv ntoo, dib, txiv kab ntxwv ua ntej sau qoob nrog 10-50mg / kg tshuaj tsuag medicinal tshuaj.

5. Kho flowering chrysanthemum vernalization theem nrog 1000mg / kg kua tshuaj tsuag nplooj, cyclamen bud theem nrog 1-5mg / kg kua tshuaj tsuag buds yuav txhawb flowering.

6. Txhawm rau txhim kho cov noob qoob loo ntawm hybrid nplej noob ntau lawm, feem ntau yog pib ntawm 15% nqe lus ntawm leej niam, thiab kho nrog 25-55mg / kg kua tshuaj rau 1-3 zaug ntawm qhov kawg ntawm 25% nqe lus. Siv qis concentration ua ntej, ces siab concentration.

Cov teeb meem xav tau kev saib xyuas

1. Gibberellic acid yog dej-soluble tsawg, yaj nrog me me ntawm cawv lossis cawv ua ntej siv, thiab tom qab ntawd dilute nrog dej mus rau qhov xav tau concentration.

2. Cov noob tsis muaj menyuam ntawm cov qoob loo kho nrog gibberellic acid nce, yog li nws tsis tsim nyog siv tshuaj hauv kev cog qoob loo.