The natural refuge policy for Bt cotton (Gossypium L.) in Pakistan - a situation analysis

• Autorzy: Ali M.S.

Warianty tytułu

PL

Polityka dotycząca naturalnych ostoi w odniesieniu do upraw bawełny Bt (Gossypium L.) w Pakistanie - analiza sytuacji

• Języki publikacji: EN

Abstrakty

EN

Bt cotton (event Cry1Ac) was formally commercialized in Pakistan in 2010. However, there has been an increasing trend of planting unauthorized Bt cotton germplasm in farmers’ fields since 2003 with a high rate of adoption in the core cotton areas especially in the province Punjab. The transgenic cotton technology has provided the growers with substantial economic benefits and has reduced their dependence on pesticides for pest control, especially against Helicoverpa armigera (Hubner). However, keeping in view the capacity of this insect to develop resistance against novel chemical formulations, it is easily speculated that Bt toxin, too, is no exception. Refuge crop policy for mono transgenic crop events has helped in delaying the rate of resistance evolution in the target pests. Thus, in Pakistan, where planting of structured refuge crops along Bt cotton fields is not mandatory, the effectiveness and durability of Bt cotton technology may decrease due to a number of factors which are discussed in this review.

PL

Bawełna Bt (toksyna Cry1Ac) została oficjalnie wprowadzona na rynek w Pakistanie w 2010 roku. Jednak od 2003 roku istnieje tendencja wśród rolników do sadzenia na polach bawełny Bt z niedopuszczonym materiałem genetycznym, a wskaźnik rolników przechodzących na uprawę tego rodzaju bawełny jest wysoki, w szczególności w prowincji Pendżab. Stosowanie technologii uprawy transgenicznych odmian bawełny przyniosło producentom bawełny znaczne korzyści ekonomiczne oraz zmniejszyło ich zależność od pestycydów zwalczających szkodniki, w szczególności Helicoverpa armigera (Hubner). Jednak mając na względzie, że ten owad posiada zdolność rozwijania odporności na nowe preparaty chemiczne, łatwo można wysnuć wniosek, że toksyna Bt również nie stanowi wyjątku. Polityka dotycząca prowadzenia upraw stanowiących ostoje w przypadku stosowania monokulturowych upraw transgenicznych odmian bawełny pomogła opóźnić szybkość wytworzenia odporności w badanych szkodnikach. Z tego powodu w Pakistanie, gdzie nie ma obowiązku prowadzenia obok pól z bawełną Bt upraw o odpowiedniej strukturze stanowiących ostoję, efektywność i trwałość technologii uprawy bawełny Bt mogą się zmniejszyć z powodu szeregu czynników, które omówione są w niniejszym artykule.

• Wydawca: -
• Czasopismo: Acta Agrobotanica
• Rocznik: 2013
• Tom: 66
• Numer: 2
• Opis fizyczny: p.3-12,fig.,ref.

Twórcy

autor

Ali M.S.

• The University of Agronomy and Veterinary Sciences, Marasti 59, Bucharest, Romania

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