Ƙananan guba, babu ragowar mai daidaita ci gaban shukar kore - sinadarin prohexadione

Prohexadione wani sabon nau'in mai kula da haɓakar shuke-shuke ne na cyclohexane carboxylic acid. Kamfanin Japan Combination Chemical Industry Co., Ltd. da BASF na Jamus ne suka ƙirƙiro shi tare. Yana hana samar da gibberellin a cikin tsirrai kuma yana sa shuke-shuke Yawan gibberellin yana raguwa, ta haka yana jinkirta da kuma sarrafa haɓakar shuke-shuke. Ana amfani da shi galibi a cikin amfanin gona na hatsi, kamar alkama, sha'ir, juriya ga wurin zama na shinkafa, kuma ana iya amfani da shi a cikin gyada, furanni da ciyayi don sarrafa girmansu.

1 Gabatarwar Samfura

Sunan gama gari na kasar Sin: calcium procyclonic

Sunan gama gari a Turanci: Prohexadione-calcium

Sunan mahaɗi: calcium 3-oxo-5-oxo-4-propionylcyclohex-3-enecarboxylate

Lambar shiga CAS: 127277-53-6

Tsarin kwayoyin halitta: C10H10CaO5

Jimlar kwayoyin halitta: 250.3

Tsarin tsari:

Sifofin jiki da sinadarai: Bayyanar: farin foda; wurin narkewa >360℃; matsin tururi: 1.74×10-5 Pa (20℃); ma'aunin rabon octanol/ruwa: Kow lgP=-2.90 (20℃); yawa: 1.435 g/mL; Henry's constant: 1.92 × 10-5 Pa m3mol-1 (calc.). Narkewa (20℃): 174 mg/L a cikin ruwan da aka tace; 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. Kwanciyar hankali: yanayin zafi mai karko har zuwa 180℃; hydrolysis DT50<5 d (pH=4, 20℃), 21 d (pH7, 20℃), 89 d (pH9, 25℃); a cikin ruwan halitta, photolysis na ruwa DT50 shine 6.3 d, photolysis DT50 a cikin ruwan da aka tace shine 2.7 d (29~34℃, 0.25W/m2).

Guba: Asalin maganin prohexadione maganin kashe kwari ne mai ƙarancin guba. Maganin LD50 na baki (namiji/mace) na beraye ya fi 5,000 mg/kg, maganin percutaneous LD50 (namiji/mace) na beraye ya fi 2,000 mg/kg, kuma maganin LD50 na baki (namiji/mace) ya fi 2,000 mg/kg. Gubawar shaƙa LC50 (awa 4, namiji/mace) ya fi 4.21 mg/L. A lokaci guda, yana da ƙarancin guba ga halittun muhalli kamar tsuntsaye, kifi, ƙudan zuma, algae, ƙudan zuma, da tsutsotsi.

Tsarin aiki: Ta hanyar hana haɗa gibberellic acid a cikin tsire-tsire, yana rage yawan gibberellic acid a cikin tsire-tsire, yana sarrafa girman ƙafafu, yana haɓaka fure da 'ya'yan itace, yana ƙara yawan amfanin gona, yana haɓaka tsarin tushe, yana kare membranes na tantanin halitta da membranes na organelle, kuma yana inganta juriya ga damuwa na amfanin gona. Don hana haɓakar ciyayi na ɓangaren sama na shukar da kuma haɓaka haɓakar haihuwa.

2 Rijista

A bisa binciken da cibiyar sadarwa ta China Pesticide Information Network ta gudanar, ya zuwa watan Janairun 2022, an yi rijistar jimillar kayayyakin sinadarin calcium na prohexadione guda 11 a kasarmu, ciki har da magunguna 3 na fasaha da kuma magunguna 8, kamar yadda aka nuna a cikin Jadawali na 1.

Tebur na 1 Rijistar sinadarin prohexadione calcium a ƙasata

3. Makomar kasuwa

A matsayin mai daidaita girmar shuke-shuke masu kore, sinadarin calcium na prohexadione iri ɗaya ne da masu daidaita girmar shuke-shuke na paclobutrazol, niconazole da trinexapac-ethyl. Yana hana biosynthesis na gibberellic acid a cikin shuke-shuke, kuma yana taka rawa wajen rage yawan amfanin gona, Matsayin sarrafa girmar shuke-shuke. Duk da haka, prohexadione-calcium ba shi da wani abu da ya rage a kan shuke-shuke, babu gurɓataccen muhalli, kuma ba shi da tasiri sosai ga amfanin gona da shuke-shuken da ba a yi niyya ba. Za a iya cewa yana da faffadan damar amfani.