Kev ua haujlwm ntawm Gibberellic Acid (GA3)

Gibberellic acid (GA3) tuaj yeem txhawb cov noob germination, cog kev loj hlob, thiab thaum ntxov flowering thiab fruiting. Nws yog dav siv nyob rau hauv ntau yam zaub mov qoob loo, thiab yog txawm ntau lug siv nyob rau hauv zaub.Nws muaj ib tug tseem ceeb nce qib ntawm cov khoom thiab zoo ntawm cov qoob loo thiab zaub.

1.Physiological zog ntawm gibberellic acid (GA3)
gibberellic acid (GA3) yog ib qho zoo heev cov nroj tsuag loj hlob txhawb cov khoom.

Nws tuaj yeem txhawb nqa cov nroj tsuag ntawm tes elongation, qia elongation, nplooj nthuav dav, ua kom cov qoob loo loj hlob sai, thiab nce cov qoob loo los yog txhim kho zoo; nws tuaj yeem tawg dormancy thiab txhawb germination;
txo qis, txhim kho cov txiv hmab txiv ntoo los yog tsim cov txiv hmab txiv ntoo tsis muaj txiv hmab txiv ntoo. Noob thiab txiv hmab txiv ntoo; tuaj yeem hloov pauv kev sib deev thiab qhov piv ntawm qee cov nroj tsuag, thiab ua rau qee cov nroj tsuag biennial tuaj yeem tawg rau tib lub xyoo.

(1) gibberellic acid (GA3) thiab cell faib thiab qia thiab nplooj elongation

gibberellic acid (GA3) tuaj yeem ua rau lub cev elongation ntawm cov stems, thiab cov nyhuv tseem ceeb dua li auxin, tab sis tus naj npawb ntawm internodes tsis hloov.
Qhov nce ntawm qhov ntev ntawm internode yog vim cell elongation thiab cell division.

Gibberellic acid (GA3) kuj tseem tuaj yeem elongate stems ntawm dwarf mutants los yog physiological dwarf nroj tsuag, cia lawv mus txog qhov siab ntawm ib txwm loj hlob.
Rau dwarf mutants xws li pob kws, nplej, thiab peas, kev kho mob nrog 1mg/kg gibberellic acid (GA3) tuaj yeem ua rau qhov ntev ntawm internode thiab ncav cuag qhov siab li qub.

Qhov no kuj qhia tau hais tias lub ntsiab yog vim li cas vim li cas cov dwarf mutants ua luv luv yog Missing gibberellic acid (GA3).
Gibberellic acid (GA3) kuj tseem siv los txhawb qhov elongation ntawm txiv hmab txiv ntoo stalks, loosen lawv, thiab tiv thaiv kab mob fungal. Nws yog feem ntau sprayed ob zaug, ib zaug thaum lub sij hawm flowering thiab ib zaug thaum lub sij hawm fruiting.

(2) gibberellic acid (GA3) thiab noob germination
gibberellic acid (GA3) tuaj yeem rhuav tshem cov dormancy ntawm cov noob, cov hauv paus hniav, tubers thiab buds thiab txhawb germination.

Piv txwv li, 0.5 ~ 1mg / kg gibberellic acid (GA3) tuaj yeem rhuav tshem qos yaj ywm dormancy.

(3) gibberellic acid (GA3) thiab paj
Cov nyhuv ntawm gibberellic acid (GA3) ntawm cov nroj tsuag flowering yog qhov nyuaj, thiab nws cov nyhuv tiag tiag txawv nyob ntawm seb hom nroj tsuag, daim ntawv thov, hom thiab concentration ntawm gibberellic acid (GA3).

Qee cov nroj tsuag yuav tsum tau ntsib lub sijhawm ntawm qhov kub thiab txias ntev ua ntej flowering. Kev kho mob nrog gibberellic acid (GA3) tuaj yeem hloov qhov kub thiab txias los ntev ntev kom lawv tawg paj, xws li radish, cabbage, beet, lettuce thiab lwm yam nroj tsuag biennial.

(4) gibberellic acid (GA3) thiab kev sib deev sib txawv
Cov teebmeem ntawm gibberellins ntawm kev sib deev sib txawv ntawm cov nroj tsuag monoecious txawv ntawm hom mus rau hom. gibberellic acid (GA3) muaj cov poj niam-txhawb cov nyhuv ntawm gramineous pob kws.

Kev kho mob nrog gibberellic acid (GA3) ntawm ntau theem ntawm kev loj hlob ntawm cov tub ntxhais hluas pob kws inflorescences tuaj yeem ua rau cov tassels feminized los yog txiv neej paj tsis muaj menyuam raws li. Hauv melons, gibberellic acid (GA3) tuaj yeem txhawb kev sib txawv ntawm txiv neej paj, thaum nyob rau hauv iab melon thiab qee hom luffa, gibberellin tuaj yeem txhawb kev sib txawv ntawm cov poj niam paj.

Kev kho mob nrog gibberellic acid (GA3) tuaj yeem ua rau parthenocarpy thiab tsim cov txiv hmab txiv ntoo tsis muaj noob nyob rau hauv txiv hmab txiv ntoo, strawberries, apricots, pears, txiv lws suav, thiab lwm yam.

(5) gibberellic acid (GA3) thiab kev loj hlob txiv hmab txiv ntoo
Gibberellic acid (GA3) yog ib qho ntawm cov tshuaj hormones tsim nyog rau kev loj hlob txiv hmab txiv ntoo. Nws tuaj yeem txhawb nqa cov synthesis thiab tso tawm ntawm hydrolase thiab hydrolyze cia cov khoom xws li cov hmoov txhuv nplej siab thiab cov protein rau cov txiv hmab txiv ntoo loj hlob. gibberellic acid (GA3) kuj tseem tuaj yeem ncua cov txiv hmab txiv ntoo ripening thiab tswj cov khoom, khaws cia thiab sijhawm thauj cov txiv hmab txiv ntoo thiab zaub. Tsis tas li ntawd, gibberellic acid (GA3) tuaj yeem txhawb nqa parthenocarpy hauv ntau hom nroj tsuag thiab tuaj yeem txhawb nqa cov txiv hmab txiv ntoo.

2.Kev thov ntawm gibberellic acid (GA3) hauv kev tsim khoom
(1) gibberellic acid (GA3) txhawb kev loj hlob, kev loj hlob ntxov, thiab nce yield

Ntau cov nplooj ntsuab ntsuab tuaj yeem ua kom muaj kev loj hlob sai thiab nce cov txiaj ntsig tom qab tau kho nrog gibberellic acid (GA3). Celery yog txau nrog 30 ~ 50mg / / kg gibberellic acid (GA3) tov txog ib nrab ib hlis tom qab sau qoob.

Cov qoob loo yuav nce ntau dua 25%, thiab cov stems thiab nplooj yuav loj tuaj. Nws yuav muaj nyob rau hauv khw rau 5 ~ 6 hnub thaum sawv ntxov. Spinach, shepherd's purse, chrysanthemum, leeks, lettuce, etc. tuaj yeem txau nrog 1. 5 ~ 20mg / kg gibberellic acid (GA3) kua, thiab cov txiaj ntsig nce ntxiv kuj tseem ceeb heev.

Rau edible fungi xws li nceb, thaum lub primordium yog tsim, soaking cov khoom thaiv nrog 400mg/kg kua yuav txhawb lub o ntawm lub cev fruiting.
Rau cov zaub soybeans thiab dwarf taum, txau nrog 20 ~ 500mg/kg kua tuaj yeem txhawb kev loj hlob ntxov thiab nce yield. Rau leeks, thaum cov nroj tsuag siab 10cm los yog 3 hnub tom qab sau, tshuaj tsuag nrog 20mg/kg kua kom nce yield ntau tshaj 15%.


(2) gibberellic acid (GA3) lov dormancy thiab txhawb germination
Cov kab mob ntawm cov qos yaj ywm thiab qee cov noob zaub muaj lub sijhawm dormant, uas cuam tshuam rau kev loj hlob.

Txiav cov qos yaj ywm yuav tsum tau kho nrog 5 ~ 10mg / / kg kua rau 15 feeb, lossis tag nrho cov qos yaj ywm yuav tsum tau kho nrog 5 ~ 15mg / / kg kua rau 15 feeb. Rau cov noob xws li cov noob taum daus, cowpeas, thiab taum ntsuab, soaking lawv hauv 2.5 mg/kg kua rau 24 teev tuaj yeem txhawb kev cog qoob loo, thiab cov nyhuv yog pom tseeb.

Siv 200 mg/kg gibberellic acid (GA3) los ntub cov noob ntawm qhov kub ntawm 30 mus rau 40 degrees rau 24 teev ua ntej germination tuaj yeem ua tiav qhov dormancy ntawm lettuce noob.

Nyob rau hauv lub tsev cog khoom strawberry txhawb kev cog qoob loo thiab kev cog qoob loo ib nrab, tom qab lub tsev cog khoom kom sov li 3 hnub, uas yog, thaum ntau tshaj 30% ntawm paj buds tshwm, tshuaj tsuag 5 ml ntawm 5 ~ 10 mg / kg gibberellic acid ( GA3) kev daws rau txhua tsob nroj, tsom rau ntawm cov nplooj tseem ceeb, ua kom cov inflorescences saum toj kawg nkaus Paj, txhawb kev loj hlob, thiab loj hlob ntxov.

(3) gibberellic acid (GA3) txhawb kev loj hlob ntawm txiv hmab txiv ntoo
Rau cov txiv hmab txiv ntoo, tshuaj tsuag cov txiv hmab txiv ntoo hluas nrog 2 ~ 3 mg / / kg kua ib zaug thaum lub caij melon hluas tuaj yeem txhawb kev loj hlob ntawm cov tub ntxhais hluas melons, tab sis tsis txhob tsuag nplooj kom tsis txhob nce cov txiv neej paj.

Rau txiv lws suav, tshuaj tsuag paj nrog 25 ~ 35mg / / kg thaum lub sij hawm flowering theem los txhawb cov txiv hmab txiv ntoo thiab tiv thaiv hollow txiv hmab txiv ntoo. Eggplant, 25 ~ 35mg / / kg thaum lub sij hawm flowering theem, tshuaj tsuag ib zaug los txhawb cov txiv hmab txiv ntoo thiab nce yield.

Rau cov kua txob, tshuaj tsuag 20 ~ 40mg / / kg ib zaug thaum lub sij hawm flowering lub sij hawm los txhawb cov txiv hmab txiv ntoo thiab nce yield.

Rau cov txiv hmab txiv ntoo, tshuaj tsuag 20mg / / kg ib zaug rau paj thaum lub sij hawm flowering theem los txhawb cov txiv hmab txiv ntoo thiab nce yield, los yog tshuaj tsuag ib zaug rau cov melons thaum lub sij hawm melon melon theem los txhawb kev loj hlob thiab nce yield.

(4) gibberellic acid (GA3) ncua lub sijhawm cia
Rau cov txiv hmab txiv ntoo, txau cov txiv hmab txiv ntoo nrog 2.5 ~ 3.5mg / / kg kua ua ntej sau tuaj yeem ncua sijhawm cia.

Txau txiv tsawb txiv hmab txiv ntoo nrog 50 ~ 60mg / / kg kua ua ntej sau qoob loo muaj qee yam cuam tshuam rau ncua sij hawm khaws cov txiv hmab txiv ntoo. Jujube, longan, thiab lwm yam tuaj yeem ncua kev laus thiab txuas ntxiv lub sijhawm cia nrog gibberellic acid (GA3).

(5) gibberellic acid (GA3) hloov qhov piv ntawm txiv neej thiab poj niam paj thiab nce noob yield
Siv cov poj niam kab ntawm dib rau cov noob qoob loo, tshuaj tsuag 50-100mg / / kg kua thaum lub yub muaj 2-6 nplooj tiag tiag tuaj yeem tig cov poj niam dib cog rau hauv cov nroj tsuag monoecious, ua kom tiav pollination, thiab nce noob yield.

(6) gibberellic acid (GA3) txhawb nqa qia flowering thiab txhim kho kev yug me nyuam coefficient ntawm kev txhim kho ntau yam.

Gibberellic acid (GA3) tuaj yeem ua rau kom muaj paj ntxov ntawm cov zaub ntev ntev. Txau cov nroj tsuag los yog poob cov ntsiab lus loj hlob nrog 50 ~ 500 mg / / kg ntawm gibberellic acid (GA3) tuaj yeem ua rau carrots, zaub qhwv, radish, celery, suav zaub qhwv, thiab lwm yam. cog qoob loo hnub ci rau 2 xyoos. Bolt nyob rau hauv ib hnub luv luv ua ntej overwintering.


(7) gibberellic acid (GA3) txo qhov mob tshwm sim los ntawm lwm yam tshuaj hormones
Tom qab cov zaub raug puas tsuaj los ntawm kev noj ntau dhau, kev kho mob nrog 2.5 ~ 5mg / kg gibberellic acid (GA3) daws tuaj yeem txo qhov kev puas tsuaj los ntawm paclobutrazol thiab chlormequat;

Kev kho mob nrog 2mg/kg daws tuaj yeem txo qhov kev puas tsuaj los ntawm ethylene.

Txiv lws suav puas tshwm sim los ntawm kev siv ntau dhau ntawm cov tshuaj tiv thaiv kev poob tuaj yeem raug tshem tawm nrog 20mg/kg gibberellic acid (GA3).