Chepfu shoma, hapana zvinosara zvinodzora kukura kwezvirimwa zvakasvibira - prohexadione calcium

Prohexadione imhando itsva yemushonga unodzora kukura kwezvirimwa wecyclohexane carboxylic acid. Yakagadzirwa pamwe chete neJapan Combination Chemical Industry Co., Ltd. neBASF yeGermany. Inodzivirira kugadzirwa kwegibberellin muzvirimwa uye inoita kuti zvirimwa zvive nemafuta. Huremu hwegibberellin hunodzikira, nokudaro zvichinonotsa uye zvichidzora kukura kwezvirimwa. Inonyanya kushandiswa muzvirimwa zvezviyo, zvakaita segorosi, bhari, mupunga, inogonawo kushandiswa munzungu, maruva nemasango kudzora kukura kwazvo.

1 Nhanganyaya yeChigadzirwa

Zita rinowanzo shandiswa muchiChinese: procyclonic acid calcium

Zita rinowanzo shandiswa muChirungu: Prohexadione-calcium

Zita remusanganiswa: calcium 3-oxo-5-oxo-4-propionylcyclohex-3-enecarboxylate

Nhamba yekupinda muCAS: 127277-53-6

Fomura yemorekuru: C10H10CaO5

Huremu hwemamorekuru: 250.3

Fomura yekuvaka:

Hunhu hwemuviri nemakemikari: Chitarisiko: upfu huchena; poindi yekunyunguduka >360℃; kumanikidzwa kwemhepo: 1.74×10-5 Pa (20℃); octanol/water partition coefficient: Kow lgP=-2.90 (20℃); density: 1.435 g/mL; Henry's constant: 1.92 × 10-5 Pa m3mol-1 (calc.). Solubility (20℃): 174 mg/L mumvura yakasanganiswa; 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 0.004 mg/L. Kugadzikana: tembiricha yakagadzikana kusvika 180℃; hydrolysis DT50<5 d (pH=4, 20℃), 21 d (pH7, 20℃), 89 d (pH9, 25℃); mumvura yechisikigo, photolysis yemvura DT50 iri 6.3 d, photolysis DT50 mumvura yakasanganiswa yaive 2.7 d (29~34℃, 0.25W/m2).

Huturu: Mushonga wekutanga weprohexadione mushonga wezvipembenene une chepfu shoma. Mushonga wemuromo weLD50 (murume/mukadzi) wemakonzo une chepfu shoma i>5,000 mg/kg, mumuromo weLD50 (murume/mukadzi) une chepfu shoma i>2,000 mg/kg, uye mumuromo weLD50 une chepfu shoma i>2,000 mg/kg. Huturu hwekufema LC50 (maawa mana, murume/mukadzi) i>4.21 mg/L. Panguva imwe chete, une chepfu shoma kuzvisikwa zvezvakatipoteredza zvakaita seshiri, hove, nhata dzemumvura, algae, nyuchi, nehonye dzepasi.

Maitiro ekushanda: Nekukanganisa kugadzirwa kwegibberellic acid mumiti, inoderedza huwandu hwegibberellic acid mumiti, inodzora kukura kwemakumbo, inokurudzira kutumbuka nekukura kwemichero, inowedzera goho, inovandudza midzi, inodzivirira masero ne organelle membranes, uye inovandudza kudzivirira kushushikana kwezvirimwa. Kuitira kudzivirira kukura kwezvirimwa pamusoro pechirimwa uye kukurudzira kukura kwekubereka.

2 Kunyoresa

Sekureva kweongororo yeChina Pesticide Information Network, kusvika muna Ndira 2022, zvigadzirwa zve prohexadione calcium zvinosvika gumi nechimwe zvakanyoreswa munyika yangu, kusanganisira mishonga mitatu yehunyanzvi uye mishonga misere, sezvakaratidzwa muTafura 1.

Tafura 1 Kunyoreswa kweprohexadione calcium munyika yangu

3 Tarisiro yemusika

Semutongi wekukura kwezvirimwa, prohexadione calcium yakafanana nepaclobutrazol, niconazole uye trinexapac-ethyl inodzora kukura kwezvirimwa. Inodzivirira kugadzirwa kwegibberellic acid muzvirimwa, uye inoita basa mukukura kwezvirimwa zvishoma nezvishoma. Basa rekudzora kukura kwezvirimwa. Zvisinei, prohexadione-calcium haina masara pazvirimwa, haina kusvibiswa kwezvakatipoteredza, uye haina simba rakawanda pazvirimwa zvinotevera nezvirimwa zvisiri chinangwa. Zvinogona kutaurwa kuti ine mukana wakakura wekushandiswa.