Ubuthi obuphantsi, akukho ntsalela yokulawula ukukhula kwezityalo eziluhlaza - iprohexadione calcium

I-Prohexadione luhlobo olutsha lokulawula ukukhula kwesityalo se-cyclohexane carboxylic acid.Yaphuhliswa ngokudibeneyo yiJapan Combination Chemical Industry Co., Ltd. kunye ne-BASF yaseJamani.Ivimbela i-biosynthesis ye-gibberellin kwizityalo kwaye yenza izityalo Umxholo we-gibberellin uyancipha, ngaloo ndlela ulibazisa kwaye ulawula ukukhula kwemilenze yezityalo.Isetyenziswa kakhulu kwizityalo zecereal, ezifana nengqolowa, irhasi, ukuxhathisa kwerayisi kwindawo yokulala, isenokusetyenziswa kumandongomane, iintyatyambo kunye neengca ukulawula ukukhula kwazo.

1 Intshayelelo yeMveliso

Igama eliqhelekileyo lesiTshayina: iprocyclonic acid calcium

Igama lesiNgesi eliqhelekileyo: Prohexadione-calcium

Igama elihlanganisiweyo: calcium 3-oxo-5-oxo-4-propionylcyclohex-3-enecarboxylate

Inombolo yobhaliso yeCAS: 127277-53-6

Ifomula yemolekyuli: C10H10CaO5

Ubunzima bemolekyuli obunxulumeneyo: 250.3

Ifomula yolwakhiwo:

Iimpawu zomzimba kunye neekhemikhali: Ukubonakala: umgubo omhlophe;indawo yokunyibilika >360℃;uxinzelelo lomphunga: 1.74×10-5 Pa (20℃);i-octanol/i-coefficient yokwahlula kwamanzi: Kow lgP=-2.90 (20℃);ubuninzi: 1.435 g/mL;UHenry's rhoqo: 1.92 × 10-5 Pa m3mol-1 (calc.).Ukunyibilika (20℃): 174 mg/L kumanzi adiliweyo;methanol 1.11 mg/L, acetone 0.038 mg/L, n-hexane＜0.003 mg/L, toluene 0.004 mg/L, ethyl acetate＜0.010 mg/L, iso Propanol 0.105 mg/L, dichloromethane 0.00 mg/L0.Ukuzinza: ubushushu obuzinzileyo ukuya kuthi ga kwi-180 ℃;i-hydrolysis DT50<5 d (pH=4, 20℃), 21 d (pH7, 20℃), 89 d (pH9, 25℃);emanzini endalo, i-photolysis yamanzi i-DT50 yi-6.3 d, i-photolysis ye-DT50 emanzini adibeneyo yayiyi-2.7 d (29～34℃, 0.25W/m2).

Ubutyhefu: Ichiza lokuqala leprohexadione sisibulali-zinambuzane esinetyhefu esezantsi.Umlomo obukhali we-LD50 (indoda/imazi) yeempuku ngu> 5,000 mg/kg, i-LD50 ye-acute percutaneous (indoda/imazi) yeempuku i> 2,000 mg/kg, kunye ne-LD50 yomlomo ebukhali yeempuku (inkunzi/imazi) yile> 2,000 mg/kg.Ukuphefumla ubutyhefu LC50 (4 h, indoda/imazi)> 4.21 mg/L.Kwangaxeshanye, inetyhefu ephantsi kwizinto ezisingqongileyo ezifana neentaka, iintlanzi, iintakumba zamanzi, i-algae, iinyosi, kunye nemisundululu.

Indlela yokwenza: Ngokuphazamisana ne-synthesis ye-gibberellic acid kwizityalo, iyanciphisa umxholo we-gibberellic acid kwizityalo, ilawula ukukhula kwemilenze, ikhuthaza intyatyambo kunye neziqhamo, ikhulise isivuno, iphuhlise iinkqubo zeengcambu, ikhusela i-cell membranes kunye ne-organelle membranes, kwaye iphucula. ukumelana noxinzelelo lwezityalo.Ukuthintela ukukhula kwezityalo kwindawo ephezulu yesityalo kunye nokukhuthaza ukukhula kokuzala.

2 Ubhaliso

Ngokombuzo we-China Pesticide Information Network, ukususela ngoJanuwari 2022, i-11 i-prohexadione imveliso ye-calcium ibhaliswe kwilizwe lam, kubandakanywa neziyobisi ze-3 zobugcisa kunye namalungiselelo e-8, njengoko kuboniswe kwiThebhile 1.

Itheyibhile 1 Ukubhaliswa kweprohexadione calcium kwilizwe lam

3 Amathemba emarike

Njengomlawuli wokukhula kwezityalo eziluhlaza, i-prohexadione calcium iyafana nabalawuli bokukhula kwezityalo ze-paclobutrazol, i-niconazole kunye ne-trinexapac-ethyl.Ithintela i-biosynthesis ye-gibberellic acid kwizityalo, kwaye idlala indima ekunciphiseni izityalo, Indima yokulawula ukukhula kwezityalo.Nangona kunjalo, iprohexadione-calcium ayinayo intsalela kwizityalo, akukho ngcoliseko kwendalo, kunye nempembelelo encinci kwizityalo ezilandelayo kunye nezityalo ezingajoliswanga.Kunokuthiwa inethemba elibanzi kakhulu lesicelo.