Sunta oo yar, nidaamiyaha koritaanka dhirta cagaaran oo aan lahayn haraaga - kaalshiyamka prohexadione

Prohexadione waa nooc cusub oo ah nidaamiyaha koritaanka dhirta ee cyclohexane carboxylic acid. Waxaa si wadajir ah u sameeyay Japan Combination Chemical Industry Co., Ltd. iyo BASF-ta Jarmalka. Waxay joojisaa biosynthesis-ka gibberellin ee dhirta waxayna ka dhigtaa dhirta. Waxyaabaha ku jira gibberellin way yaraadaan, taasoo dib u dhigaysa oo xakameysa koritaanka lugaha ee dhirta. Inta badan waxaa loo isticmaalaa dalagyada badarka, sida sarreenka, shaciirka, iska caabbinta hoyga bariiska, waxaa sidoo kale loo isticmaali karaa lawska, ubaxa iyo cawska si loo xakameeyo koritaankooda.

1 Hordhac Badeecad

Magaca caadiga ah ee Shiinaha: calcium procyclonic acid

Magaca caadiga ah ee Ingiriisiga: Prohexadione-calcium

Magaca isku-dhafka ah: Kaalshiyam 3-oxo-5-oxo-4-propionylcyclohex-3-enecarboxylate

Lambarka ku-biiritaanka CAS: 127277-53-6

Qaacidada molecular-ka: C10H10CaO5

Cufnaanta molecular-ka ee qaraabada ah: 250.3

Qaacidada qaab-dhismeedka:

Sifooyinka Jirka iyo Kiimikada: Muuqaalka: budada cad; dhibic dhalaalid >360℃; cadaadiska uumiga: 1.74×10-5 Pa (20℃); isku-darka qaybta octanol/biyo: Kow lgP=-2.90 (20℃); cufnaanta: 1.435 g/mL; Joogtada Henry: 1.92 × 10-5 Pa m3mol-1 (kalsiyum.). Milmida (20℃): 174 mg/L biyo la safeeyey; 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. Xasilloonida: heerkul deggan ilaa 180℃; hydrolysis DT50<5 d (pH=4, 20℃), 21 d (pH7, 20℃), 89 d (pH9, 25℃); biyaha dabiiciga ah, photolysis-ka biyaha DT50 waa 6.3 d, photolysis DT50 ee biyaha la safeeyey wuxuu ahaa 2.7 d (29~34℃, 0.25W/m2).

Sunta: Daawada asalka ah ee prohexadione waa sunta cayayaanka ee sunta yar. LD50 afka laga qaato ee daran (lab/dheddig) ee jiirka waa >5,000 mg/kg, LD50 afka laga qaato ee daran (lab/dheddig) ee jiirka waa >2,000 mg/kg, LD50 afka laga qaato ee daran ee jiirka (lab/dheddig) waa >2,000 mg/kg. Sunta neefsashada LC50 (4 saacadood, lab/dheddig)> 4.21 mg/L. Isla mar ahaantaana, waxay leedahay sunta yar ee noolaha deegaanka sida shimbiraha, kalluunka, boodada biyaha, algae, shinnida, iyo gooryaanka dhulka.

Habka ficilka: Iyadoo faragelin ku sameyneysa isku-darka aashitada gibberellic ee dhirta, waxay yareysaa maadada aashitada gibberellic ee dhirta, waxay xakameysaa koritaanka lugaha, waxay kor u qaaddaa ubaxa iyo midhaha, waxay kordhisaa wax-soo-saarka, waxay horumarisaa nidaamyada xididka, waxay ilaalisaa xuubka unugyada iyo xuubka organelle, waxayna wanaajisaa iska caabbinta cadaadiska dalagga. Si loo joojiyo koritaanka dhirta ee qaybta sare ee geedka loona hormariyo koritaanka taranka.

2 Diiwaangelinta

Sida laga soo xigtay baaritaanka Shabakadda Macluumaadka Cayayaanka ee Shiinaha, laga bilaabo Janaayo 2022, wadarta 11 badeecooyin kaalshiyam ah oo prohexadione ah ayaa laga diiwaan geliyay dalkayga, oo ay ku jiraan 3 daawooyin farsamo iyo 8 diyaargarow, sida ku cad Shaxda 1aad.

Shaxda 1aad Diiwaangelinta kaalshiyamka prohexadione ee dalkayga

3 Rajooyinka suuqa

Sida nidaamiyaha koritaanka dhirta cagaaran, kalsiyum prohexadione waa la mid ah kuwa nidaamiya koritaanka dhirta ee paclobutrazol, niconazole iyo trinexapac-ethyl. Waxay joojisaa biosynthesis-ka gibberellic acid ee dhirta, waxayna door ka ciyaartaa dalagyo yaryar, Doorka xakamaynta koritaanka dhirta. Si kastaba ha ahaatee, prohexadione-calcium ma laha haraaga dhirta, ma laha wasakhayn deegaanka, iyo saameyn yar oo ku saabsan dalagyada xiga iyo dhirta aan bartilmaameedka ahayn. Waxaa la dhihi karaa waxay leedahay rajo aad u ballaaran oo ku saabsan isticmaalka.