Titlebook: Winston Churchill and the German Question in British Foreign Policy 1918–1922; Donald Graeme Boadle Book 1973 Martinus Nijhoff, The Hague,

馬籠頭

谷類(lèi)

母豬

Limnogeology: Progress, Challenges and OpportunitiesA Tribute to Elizabe

警告

degradation

https://doi.org/10.1007/978-3-662-00847-8ction of transgenics in a wide variety of crop plants. In fact, transgenesis has emerged as an additional tool to carry out single-gene breeding or transgenic breeding of crops. Unlike conventional breeding, only the cloned gene(s) of agronomic importance is/are being introduced without cotransfer o