Salicylic acid plays ntau lub luag haujlwm hauv kev ua liaj ua teb, suav nrog kev cog qoob loo, tshuaj tua kab, thiab tshuaj tua kab mob.
Salicylic acid,ua acog kev loj hlob regulator,plays lub luag haujlwm tseem ceeb hauv kev txhawb nqa cov nroj tsuag kev loj hlob thiab nce qoob loo. Nws tuaj yeem txhim kho cov synthesis ntawm cov tshuaj hormones hauv cov nroj tsuag, ua kom lawv txoj kev loj hlob thiab kev sib txawv, thiab tseem pab cov nroj tsuag hloov mus rau ib puag ncig kev hloov pauv. Salicylic acid kuj tseem tuaj yeem cuam tshuam qhov elongation ntawm cov lus qhia cog, ua kom cov nroj tsuag muaj zog thiab txo qhov tshwm sim ntawm cov kab mob thiab kab tsuag. Dhau li ntawm kev cog qoob loo, salicylic acid kuj tseem siv tau los ua tshuaj tua kab. Hauv kev ua liaj ua teb, piv txwv xws li acetylsalicylic acid thiab sodium salicylate. Cov tshuaj no tuaj yeem tua cov kab tsuag thiab kab mob uas cab rau ntawm cov nroj tsuag, tiv thaiv kev loj hlob ntawm cov qoob loo. Hauv kev kho mob, salicylic acid kuj yog ib hom tshuaj tiv thaiv kab mob. Hauv kev ua liaj ua teb, salicylic acid yog siv los tiv thaiv kab mob hauv cov tsiaj. Nyob rau tib lub sijhawm, salicylic acid tuaj yeem txhim kho cov kab mob tiv thaiv thiab khaws lub sijhawm ntawm cov khoom ua liaj ua teb.
Salicylic Acid (abbreviated li SA) tsis yog tshuaj tua kab ib txwm muaj (xws li tshuaj tua kab, fungicide, lossis tshuaj tua kab mob) hauv kev ua liaj ua teb. Txawm li cas los xij, nws ua lub luag haujlwm tseem ceeb hauv cov nroj tsuag tiv thaiv mechanism thiab kev tswj hwm kev ntxhov siab. Nyob rau hauv xyoo tas los no, salicylic acid tau dav kawm thiab siv hauv kev ua liaj ua teb raws li cov nroj tsuag tiv thaiv kab mob los yog cov tshuaj lom neeg, thiab nws muaj cov haujlwm tseem ceeb hauv qab no:
1. Ua kom cov nroj tsuag tau txais kev tiv thaiv (SAR)
Salicylic acid yog ib qho tshwm sim tshwm sim ntawm cov teeb liab molecule nyob rau hauv cov nroj tsuag, uas accumulates sai tom qab kab mob.
Nws tuaj yeem qhib qhov systemic acquired resistance (SAR), ua rau tag nrho cov nroj tsuag tsim broad-spectrum tiv thaiv ntau yam kab mob (tshwj xeeb yog fungi, kab mob, thiab kab mob).
2. Txhim kho qhov kam rau ntawm cov nroj tsuag kom tsis txhob muaj kev nyuaj siab
Salicylic acid tuaj yeem txhim kho kev ua siab ntev ntawm cov nroj tsuag kom tsis txhob muaj kev ntxhov siab xws li dej qhuav, ntsev, tsis kub, kub, thiab hnyav hlau.
Cov txheej txheem muaj xws li: tswj kev ua haujlwm ntawm cov enzymes antioxidant (xws li SOD, POD, CAT), tswj kev ruaj khov ntawm cov cell membranes, thiab txhawb kev sib sau ntawm osmotic regulatory tshuaj (xws li proline, soluble qab zib), thiab lwm yam.
3. Tswj kev cog qoob loo thiab kev loj hlob
Tsawg concentrations ntawm salicylic acid tuaj yeem txhawb cov noob germination, hauv paus kev loj hlob thiab photosynthesis.
Cov concentrations siab, txawm li cas los xij, tuaj yeem cuam tshuam kev loj hlob, ua kom pom "hormone biphasic effect" (hormesis effect).
4. Raws li ib feem ntawm kev tswj hwm ntsuab
Txawm hais tias salicylic acid nws tus kheej tsis muaj peev xwm los tua cov kab mob ncaj qha, nws tuaj yeem txo kev siv tshuaj tua kab los ntawm inducing cov nroj tsuag tus kheej tiv thaiv kab mob.
Nws yog feem ntau siv ua ke nrog lwm cov tshuaj lom neeg (xws li chitosan, jasmonic acid) los txhim kho kev ua tau zoo.
Daim ntawv thov tiag tiag
Nplooj txau: Qhov ntau npaum li cas yog 0.1–1.0 mM (kwv yees li 14–140 mg / L), uas tuaj yeem hloov kho raws li hom qoob loo thiab lub hom phiaj.
Kev kho cov noob: Soaking noob txhawm rau txhim kho kab mob tiv thaiv thiab germination tus nqi.
Kev sib xyaw nrog cov tshuaj tua kab: Txhim kho tag nrho cov qoob loo tiv thaiv kab mob thiab ua kom ntev ntawm cov tshuaj tua kab.
Lus Ceeb Toom
Cov concentration ntau dhau tuaj yeem ua rau phytotoxicity (xws li nplooj hlawv thiab kev loj hlob inhibition).
Cov nyhuv yog cuam tshuam los ntawm ib puag ncig tej yam kev mob (kub, humidity), qoob loo ntau yam thiab siv sij hawm.
Tam sim no, salicylic acid tsis tau sau npe ua tshuaj tua kab hauv Suav teb thiab feem ntau lwm lub tebchaws. Nws yog feem ntau siv los ua cov nroj tsuag kev loj hlob regulator los yog ib tug lom stimulant.
Cov ntsiab lus
Tus nqi tseem ceeb ntawm salicylic acid hauv kev ua liaj ua teb yog nyob rau hauv "tiv thaiv cov nroj tsuag los ntawm cov nroj tsuag" - los ntawm kev ua kom cov nroj tsuag 'tus kheej tiv thaiv kab mob tiv thaiv kab mob thiab cov xwm txheej tsis zoo. Nws yog ib qho khoom siv uas ua tau raws li lub tswv yim ntawm kev ua liaj ua teb ntsuab thiab kev txhim kho kom ruaj khov. Txawm hais tias nws tsis yog tshuaj tua kab ib txwm muaj, nws muaj peev xwm tseem ceeb hauv kev tswj xyuas kab tsuag (IPM).
Post lub sij hawm: Nov-13-2025