Uburozi buke, nta bisigazwa by’ibimera bikura nabi – prohexadione calcium

Prohexadione ni ubwoko bushya bw'umuti ugenzura imikurire y'ibimera bya aside karboksilike ya cyclohexane. Yakozwe ku bufatanye na Japan Combination Chemical Industry Co., Ltd. na BASF yo mu Budage. Ibuza imikorere ya gibberellin mu bimera kandi igakora ibimera. Igipimo cya gibberellin kiragabanuka, bityo bigatinda kandi kikagenzura imikurire y'ibimera. Ikoreshwa cyane cyane mu bihingwa by'ibinyampeke, nk'ingano, sayiri, kurwanya umuceri, ishobora no gukoreshwa mu bihingwa by'ubunyobwa, indabyo n'ubwatsi kugira ngo igenzure imikurire yabyo.

1 Intangiriro y'ibicuruzwa

Izina rusange ry'Abashinwa: aside procyclonic calcium

Izina rusange ry'Icyongereza: Prohexadione-calcium

Izina ry'uruvange: kalisiyumu 3-oxo-5-oxo-4-propionylcyclohex-3-enecarboxylate

Nimero yo kwinjira muri CAS: 127277-53-6

Formule ya molekile: C10H10CaO5

Ubwinshi bwa molekile: 250.3

Ifishi y'imiterere:

Imiterere y'umubiri n'imiti: Ishusho: ifu yera; aho ishonga >360℃; igitutu cy'umwuka: 1.74×10-5 Pa (20℃); coefficient ya octanol/amazi: Kow lgP=-2.90 (20℃); ubucucike: 1.435 g/mL; Henry's constant: 1.92 × 10-5 Pa m3mol-1 (kalori). Gushonga (20℃): 174 mg/L mu mazi yaciwe; 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. Guhagarara: ubushyuhe buhamye kugeza kuri 180℃; hydrolysis DT50<5 d (pH=4, 20℃), 21 d (pH7, 20℃), 89 d (pH9, 25℃); mu mazi karemano, fotolisiyo y'amazi DT50 ni 6.3 d, fotolisiyo DT50 mu mazi yaciwe yari 2.7 d (29 ~ 34℃, 0.25W/m2).

Uburozi: Umuti wa mbere wa prohexadione ni umuti wica udukoko dukeya. LD50 yo mu kanwa (ingabo/abagore) y'imbeba ni >5.000 mg/kg, LD50 yo mu kanwa (ingabo/abagore) y'imbeba ni >2.000 mg/kg, naho LD50 yo mu kanwa ikeya y'imbeba (ingabo/abagore) ni >2.000 mg/kg. Uburozi bwo guhumeka LC50 (amasaha 4, ingabo/abagore) ni >4.21 mg/L. Muri icyo gihe, ifite uburozi buke ku bidukikije nk'inyoni, amafi, inda zo mu mazi, ibimera, inzuki, n'inzoka zo mu butaka.

Uburyo ikorwamo: Mu kubangamira ikorwa rya aside gibberellic mu bimera, bigabanya ingano ya aside gibberellic mu bimera, bigenzura imikurire y’ibimera birebire, bitera indabo n’imbuto, byongera umusaruro, bitera imizi, birinda uturemangingo n’uturemangingo tw’umubiri, kandi bikongera ubushobozi bwo kurwanya imihangayiko y’ibihingwa. Kugira ngo bibuze gukura kw’ibimera mu gice cyo hejuru cy’igihingwa no guteza imbere imikurire y’imyororokere.

2 Kwiyandikisha

Dukurikije iperereza ryakozwe n’ikigo gishinzwe amakuru y’ibiyobyabwenge cya China Pesticide, kugeza muri Mutarama 2022, ibicuruzwa 11 bya kalisiyumu bya prohexadione byamaze kwandikwa mu gihugu cyanjye, harimo imiti 3 ya tekiniki n’imiti 8, nk’uko bigaragara mu mbonerahamwe ya 1.

Imbonerahamwe ya 1 Kwandika Prohexadione Calcium mu gihugu cyanjye

3 Isoko ry'amasoko

Nk’umugenzuzi w’ibimera bikomoka ku bimera, prohexadione calcium ni kimwe n’umugenzuzi w’ibimera wa paclobutrazol, niconazole na trinexapac-ethyl. Ibuza ikorwa rya aside gibberellic mu bimera, kandi igira uruhare mu gutuma ibihingwa bikura neza. Uruhare rwo kugenzura imikurire y’ibimera. Ariko, prohexadione-calcium nta bisigazwa igira ku bimera, nta mwanda uhumanya ibidukikije, kandi nta ngaruka nyinshi igira ku bihingwa bikurikira n’ibimera bitari ibyagenewe. Dushobora kuvuga ko ifite amahirwe menshi yo kuyikoresha.