应用“三亲株杂交”法,将含有卡那霉素抗性基因(NPT-Ⅱ基因)和β-葡糖苷酸酶(Gus)基因的双向质粒pBI121转移到根癌农杆菌LBA4404(......

In this paper, we will establish some oscillation criteria for the higher order linear dynamic equation on time scale in......