Effect of ecological organic fertilizer on tomato bacterial wilt and soil microbial diversities Isolation and identification of the pathogen causing tomato bacterial soft rot Soil microbial diversity under typical vegetation zones along an elevation gradient in Helan Mountains Cloning and Sequencing of a cDNA Encoding Farnesyl Pyrophosphate Synthase from Gossypium arboreum and Its Expression Pattern in the Developing Seeds of Gossypium hirsutum cv.