Isoxaflutole HPPD inhibitor herbicide rau kev tswj cov nroj tsuag

Khoom piav qhia

Isoxaflutole yog cov tshuaj tua kab mob hauv lub cev - nws yog translocated thoob plaws hauv cov nroj tsuag tom qab nqus los ntawm cov hauv paus hniav thiab nplooj thiab hloov pauv sai hauv planta mus rau diketonitrile biologically active, uas yog tom qab ntawd detoxified rau inactive metabolite, 2-methylsulphonyl-4-trifluoromethylbenzoic acid.Cov kev ua ntawm cov khoom yog los ntawm inhibition ntawm enzyme p-hydroxy phenyl pyruvate dioxygenase (HPPD), uas hloov p-hydroxy phenyl pyruvate rau homogentisate, ib kauj ruam tseem ceeb hauv plastoquinone biosynthesis.Isoxaflutole tswj cov kab dav dav ntawm cov nyom thiab cov nplooj dav dav los ntawm cov tshuaj dawb los yog tawm cov nroj tsuag tom qab siv tshuaj tua kab mob los ntawm cov hauv paus hniav.Tom qab cov nplooj los yog hauv paus uptake, isoxaflutole tau hloov pauv sai sai rau diketonitrile derivative (2-cyclopropyl-3-(2-mesyl-4-trifluoromethylphenyl)-3-oxopropanenitrile) los ntawm kev qhib lub nplhaib isoxazole.

Isoxaflutole tuaj yeem siv tau ua ntej tshwm sim, ua ntej cog lossis cog ua ntej cog rau hauv pob kws thiab ua ntej tshwm sim lossis ntxov tom qab tshwm sim hauv cov kab mob ntshav qab zib.Tus nqi siab dua yog xav tau rau kev siv ua ntej cog.Hauv kev sim teb, isoxaflutole tau muab cov qib zoo sib xws ntawm kev tswj hwm rau cov qauv tshuaj tua kab mob tab sis ntawm daim ntawv thov nqi ze li 50 npaug qis dua.Nws tswj cov nroj tsuag triazine-resistant ob qho tib si thaum siv ib leeg thiab hauv kev sib xyaw.Lub tuam txhab pom zoo tias nws yog siv nyob rau hauv kev sib tov, thiab nyob rau hauv kev sib hloov los yog ib theem zuj zus nrog rau lwm yam herbicides kom ncua qhov pib ntawm kev tiv thaiv.

Isoxaflutole, uas muaj ib nrab hnub ntawm 12 teev mus rau 3 hnub, nyob ntawm seb hom av thiab lwm yam, kuj hloov mus rau diketonitrile hauv av.Isoxaflutole khaws cia ntawm cov av saum npoo av, tso cai rau nws los ntawm qhov chaw germinating nroj tsuag cov noob, whereas diketonitrile, uas muaj ib nrab neej ntawm 20 mus rau 30 hnub, nkag mus rau hauv av thiab coj los ntawm cov hauv paus hniav.Hauv ob qho tib si nroj tsuag thiab hauv av, diketonitrile hloov mus rau herbicidally inactive benzoic acid.

Cov khoom no yuav tsum tsis txhob siv rau cov av xuab zeb lossis loamy lossis rau cov av uas muaj tsawg dua 2% organic teeb meem.Txhawm rau tiv thaiv qhov muaj peev xwm toxicity rau ntses, dej nroj tsuag thiab invertebrates, yuav tsum muaj thaj tsam li 22 meter los tiv thaiv cov cheeb tsam rhiab heev, xws li cov av ntub dej, pas dej, pas dej thiab cov dej ntws.