Sabbin Ci gaban Topramezone

Topramezone shine maganin kashe kwari na farko da BASF ta samar bayan shukar amfanin gona, wanda shine maganin hana 4-hydroxyphenylpyruvate oxidase (4-HPPD). Tun lokacin da aka ƙaddamar da shi a shekarar 2011, an sanya sunan samfurin "Baowei" a cikin jerin sunayen a China, wanda hakan ya karya lahani na aminci na magungunan kashe kwari na gargajiya na gonakin masara kuma ya jawo hankalin masana'antu.

Babban fa'idar topramezone ita ce amincinta ga masara da amfanin gona masu zuwa, kuma ana amfani da ita sosai a kusan dukkan nau'ikan masara kamar masara ta yau da kullun, masara mai narkewa, masara mai zaki, masarar gona, da popcorn. A lokaci guda, tana da fa'idar maganin kashe kwari, tana da yawan aiki, da kuma ƙarfin da ke iya wargazawa, kuma tana da kyakkyawan tasirin sarrafawa akan ciyayi waɗanda ke jure wa glyphosate, triazine, acetyllactate synthase (ALS), da kuma acetyl CoA carboxylase (ACCase) inhibitors.

A cewar rahotanni, a cikin 'yan shekarun nan, yayin da ciyayi masu jurewa a gonakin masara ke ƙara zama da wahala a shawo kansu, ribar da tasirin maganin gargajiya na taba da nitrate ya ragu, kuma kamfanonin magungunan kashe kwari na cikin gida sun ƙara mai da hankali kan topramezone. Tare da ƙarewar haƙƙin mallaka na BASF a China (lambar haƙƙin mallaka ZL98802797.6 don topramezone ta ƙare a ranar 8 ga Janairu, 2018), tsarin gano asalin maganin yana ci gaba da ci gaba, kuma kasuwarsa za ta buɗe a hankali.

A shekarar 2014, tallace-tallacen topramezone a duniya sun kai dala miliyan 85 na Amurka, kuma a shekarar 2017, tallace-tallace a duniya sun karu zuwa mafi girman dalar Amurka miliyan 124 a tarihi, wanda ya zo na huɗu a tsakanin magungunan kashe kwari na HPPD (manyan uku sune nitrosulfuron, isoxacloprid, da cyclosulfuron). Bugu da ƙari, kamfanoni kamar Bayer da Syngenta sun cimma yarjejeniya don haɓaka waken soya masu jure wa HPPD, wanda hakan ya taimaka wajen haɓaka tallace-tallacen topramezone. Daga mahangar yawan tallace-tallace a duniya, manyan kasuwannin tallace-tallace na topramezone suna cikin ƙasashe kamar Amurka, Jamus, China, Indiya, Indonesia, da Mexico.