Qhov sib txawv thiab zoo sib xws ntawm propiconazole thiab cyproconazole
Cov ntsiab lus tseem ceeb
Txawm hais tias yog cov sib xyaw sib txawv, ob qho tib si fungicides sib koom tib lub hom phiaj biochemical: lawv inhibit C14 -demethylase, enzyme tseem ceeb hauv ergosterol biosynthesis. Qhov kev cuam tshuam no cuam tshuam rau fungal cell membrane kev ncaj ncees, thaum kawg suppressing mycelial kev loj hlob thiab spores germination.
2. Cov Khoom Siv Hluav Taws Xob
Lawv yog cov heev systemic thiab nthuav ambimobile translocation nyob rau hauv cov nroj tsuag. Tom qab daim ntawv thov ntawm foliar tshuaj tsuag los yog hauv paus uptake, cov tebchaw no nkag tau yooj yim absorbed thiab tuaj yeem txav mus rau ob qho tib si (ob qho tib si acropetally thiab basipetally) los ntawm xylem thiab phloem.
3. Hom Kab Mob Spectrum
Lawv cov kev ua tau zoo yog feem ntau tawm tsam cov kab mob fungal nyob rau hauv Ascomycota thiab Basidiomycota phyla, nrog rau cov kab mob xws li powdery mildew, xeb, * Rhizoctonia* sheath blight, thiab kua scab. Qhov tseem ceeb, lawv tsis muaj txiaj ntsig tiv thaiv Oomycete cov kab mob xws li cov uas ua rau mob mildews.
4. Cov kev cai cog qoob loo cog qoob loo
Qhov thib ob physiological nyhuv ntawm ob qho tib si yog qhov me me inhibition ntawm gibberellin biosynthesis hauv cov nroj tsuag. Ntawm cov ntawv thov siab, qhov no tuaj yeem tshwm sim ib ntus raws li txo qis internode elongation lossis stunting.
Qhov sib txawv tseem ceeb (cov lus sib piv)
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Sib piv Dimensions
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Propiconazole
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Cyproconazole
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Chemical Structure
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Lub npe tshuaj: 1-[2-(2,4-Dichlorophenyl)-4-propyl-1,3-dioxolan-2-ylmethyl]-1H-1,2,4-triazole
Cov yam ntxwv zoo: muaj cov qauv dioxolane heterocyclic nplhaib. |
Lub npe tshuaj: 1-(4-Chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl) pentan-3-ol
Cov yam ntxwv ntawm cov qauv: nta ib tug pentanol aliphatic saw qauv uas tsis muaj heterocycle (sib nrug los ntawm pawg triazole). |
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CAS nr
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60207-90-1
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94361-06-5
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Spectrum of Control Emphasis
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Ua kom muaj zog tiv thaiv kab mob los ntawm Basidiomycota fungi, xws li nplej sheath blight, nplej ntse eyepot, txiv tsawb nplooj, thiab txiv laum huab xeeb. Nws kuj tseem muab qee qhov kev ua tau zoo tiv thaiv kab mob Ascomycota xws li powdery mildew thiab kua scab.
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Qhia tau zoo tshaj tawm tsam cov kab mob tshwm sim los ntawm Ascomycota fungi, suav nrog cov hmoov nplej hmoov nplej, kua nplaum nplaum, pear scab, thiab taum xeb. Nws cov txiaj ntsig tiv thaiv Basidiomycotadiseases feem ntau tsis muaj zog me ntsis piv rau propiconazole.
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Cov qoob loo tsim nyog
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Muaj kev siv dav dav thiab feem ntau yog siv rau cov qoob loo cereal (xws li mov, nplej, pob kws), txiv tsawb, txiv laum huab xeeb, thiab zaub.
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Nws siv yog tsom rau cov qoob loo cereal (nplej, barley), txiv hmab txiv ntoo ntoo (xws li, kua, txiv duaj), legumes, thiab qab zib beets.
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Phytotoxicity Risk
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Nws nthuav tawm qhov kev loj hlob ntawm cov nroj tsuag muaj zog dua - inhibiting nyhuv. Daim ntawv thov thaum lub sij hawm rhiab loj hlob theem xws li cov yub, paj, los yog cov txiv hmab txiv ntoo hluas yuav ua rau cov nroj tsuag stunting, nplooj curling, los yog txiv hmab txiv ntoo malformation. Yog li ntawd, kev tswj xyuas nruj nruj yog qhov tseem ceeb.
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Nws muaj kev loj hlob ntawm cov nroj tsuag me me- inhibiting nyhuv thiab ua rau muaj kev pheej hmoo ntawm phytotoxicity. Yog li ntawd, nws tuaj yeem siv tau thaum lub sijhawm ua qoob loo loj hlob, xws li qia elongation theem hauv cov nplej lossis cov txiv hmab txiv ntoo hluas hauv cov ntoo txiv ntoo.
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Physicochemical Properties
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Nws muaj qhov siab dua vapor siab (0.13 mPa ntawm 20 degree) thiab muaj zog volatility, ua rau muaj peev xwm rov ua dua tshiab. Qhov no ua rau nws zoo - haum rau kev siv tshuaj tsuag rau cov kab mob canopy.
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Nws nthuav tawm me ntsis dej solubility (100 mg / L ntawm 20 degree), ua kom yooj yim rau kev nkag mus thiab hloov chaw hauv cov nroj tsuag. Cov cuab yeej no ua rau nws tsim nyog tshwj xeeb rau cov kev siv xws li kev kho cov noob los yog cov av ntub dej los tswj cov av- yug los lossis noob- kab mob.
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Common Dosage forms
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Emulsifiable Concentrate (EC), Suspension Concentrate (SC), thiab Emulsion Roj hauv Dej (EW), feem ntau yog siv rau kev siv tshuaj tsuag.
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Dej-dispersible Wranule (WG), Wlowable concentrate for Weed treatment (FS), thiab Suspension Concentrate (SC), haum rau kev txau thiab kho cov noob.
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Residue thiab Pre-Siv sij hawm sau
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Nws muaj lub sij hawm nruab nrab residual. Qhov kev pom zoo ua ntej -sijhawm sau qoob (PHI) rau cov qoob loo qoob loo feem ntau yog 7–14 hnub.
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Nws muaj lub sij hawm luv luv. Qhov pom zoo PHI yog kwv yees li 5-7 hnub rau cov qoob loo qoob loo thiab 10-15 hnub rau cov ntoo txiv ntoo.
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Cov lus pom zoo rau kev thov
1. Rau kev tswj cov nplej sheath blight los yog txiv tsawb nplooj, propiconazole yog qhov zoo tshaj plaws pom zoo vim nws cov kev ua tau zoo tshaj tawm tsam cov kab mob no.
2. Rau kev tswj cov hmoov nplej hmoov los yog kua nplaum nplaum, cyproconazole yog qhov kev xaiv zoo dua, muab kev nyab xeeb dua rau daim ntawv thov.
3. Thaum lub sij hawm rhiab heev cov qoob loo xws li yub los yog paj, yuav tsum tsis txhob siv propiconazole; cyproconazole tuaj yeem suav tias yog lwm txoj hauv kev.
4. Ob tus neeg sawv cev muaj qhov pheej hmoo tseem ceeb ntawm kev txhawb nqa cov kab mob fungal. Nws raug nquahu kom tig los yog lub tank- sib tov nrog cov tshuaj fungicides uas muaj ntau hom kev ua, xws li azoxystrobin lossis mancozeb.
5. Thaum cov nyhuv curative muaj zog yog xav tau rau cov kab mob uas twb muaj lawm, cyproconazole feem ntau yog qhov kev xaiv zoo dua vim nws cov cuab yeej kho kho kom zoo thiab tshem tawm.
6. Rau qhov dav - spectrum tiv thaiv kev tiv thaiv los yog thaum tswj ntau yam qoob loo thiab kab mob (xws li, nplooj txiv tsawb, pob kws blight), propiconazole muaj kev siv dav dua.
