Yakaderera muchetura, hapana yakasara yakasvibira chirimwa kukura regulator - prohexadione calcium

Prohexadione rudzi rutsva rwekukura kwechirimwa regulator ye cyclohexane carboxylic acid.Yakagadzirwa pamwe chete neJapan Combination Chemical Industry Co., Ltd. uye BASF yekuGermany.Iyo inhibisa biosynthesis yegibberellin mumiti uye inoita zvirimwa Zvigadzirwa zvegibberellin zvakaderedzwa, nokudaro kunonoka uye kutonga kukura kwemakumbo emiti.Inonyanya kushandiswa muzvirimwa zvezviyo, zvakadai segorosi, bhari, mupunga wekugara, zvinogona kushandiswa munzungu, maruva uye lawn kudzora kukura kwavo.

1 Product Sumo

Chinese zita rinowanzozivikanwa: procyclonic acid calcium

Chirungu zita rinozivikanwa: Prohexadione-calcium

Musanganiswa zita: calcium 3-oxo-5-oxo-4-propionylcyclohex-3-enecarboxylate

CAS kupinda nhamba: 127277-53-6

Molecular formula: C10H10CaO5

Relative molecular mass: 250.3

Structural formula:

Muviri uye makemikari zvinhu: Kuonekwa: chena poda;kunyungudika >360 ℃;mhute kudzvinyirirwa: 1.74×10-5 Pa (20℃);octanol/water partition coefficient: Kow lgP=-2.90 (20℃);density: 1.435 g/mL;Nguva dzose yaHenry: 1.92 × 10-5 Pa m3mol-1 (calc.).Solubility (20 ℃): 174 mg/L mumvura yakasvibiswa;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/L0.Kugadzikana: kugadzikana tembiricha kusvika 180 ℃;hydrolysis DT50<5 d (pH=4, 20℃), 21 d (pH7, 20℃), 89 d (pH9, 25℃);mumvura yakasikwa, mvura photolysis DT50 ndeye 6.3 d, iyo photolysis DT50 mumvura yakasvibiswa yaiva 2.7 d (29～34 ℃, 0.25W/m2).

Toxicity: Mushonga wekutanga weprohexadione mushonga wezvipembenene wakaderera.Iyo acute oral LD50 (murume / mukadzi) yemakonzo ndeye> 5,000 mg/kg, iyo acute percutaneous LD50 (murume / mukadzi) yemakonzo ndeye> 2,000 mg/kg, uye acute oral LD50 yemakonzo (murume / mukadzi) ndeye> 2,000 mg/kg.Kufemba muchetura LC50 (4 h, murume/mukadzi)> 4.21 mg/L.Panguva imwecheteyo, ine huturu hwakaderera kune zvipenyu zvezvakatipoteredza zvakaita seshiri, hove, nhata dzemvura, algae, nyuchi, uye makonye.

Mechanism yekuita: Nekukanganisa kuumbwa kwegibberellic acid muzvirimwa, inoderedza zviri mugibberellic acid muzvirimwa, inodzora kukura kwemakumbo, inosimudzira maruva nekubereka michero, inowedzera goho, inovandudza midzi midzi, inodzivirira cell membranes uye organelle membranes, uye inovandudza. goho kusagadzikana kuramba.Saka kuti inhibisa kukura kwezvinomera kwechikamu chepamusoro chechirimwa uye kukurudzira kukura kwekubereka.

2 Kunyoresa

Zvinoenderana nekubvunza kweChina Pesticide Information Network, kubva muna Ndira 2022, huwandu hwe11 prohexadione calcium zvigadzirwa zvakanyoreswa munyika yangu, kusanganisira 3 mishonga yehunyanzvi uye gadziriro 8, sezvakaratidzwa muTebhura 1.

Tafura 1 Kunyoreswa kweprohexadione calcium munyika yangu

3 Zvinotarisirwa pamusika

Sezvinomera zvakasvibirira zvinomera zvinokura, prohexadione calcium inofanana nekukura kwezvirimwa zvepaclobutrazol, niconazole uye trinexapac-ethyl.Inodzivirira iyo biosynthesis yegibberellic acid muzvirimwa, uye inoita basa mukukura kwezvirimwa, Basa rekudzora kukura kwezvirimwa.Nekudaro, prohexadione-calcium haina zvakasara pazvirimwa, haina kusvibiswa kune zvakatipoteredza, uye kushoma kunokanganisa zvirimwa zvinotevera uye zvisiri izvo zvinotangwa.Zvinogona kutaurwa kuti ine tarisiro yakakura kwazvo yekushandisa.