The growth characteristics of floating\|leaved macrophyte Trapa quadrispinosa in East Taihu Lake The dynamic variation of maize (Sea mays L.) population growth characteristics under cultivars-intercropped on the Loess Plateau Clone Selection of Chinese Fir with Fast-growth and Superior Timber Property Effect of different treatments on the growth and physiological characteristics of Alhagi sparsifolia Comparison of plasticity of seedling growth of two umbellaceae species in response to light intensity Affect of Ag+ and La3+elicitors on growth and accumulation of adventitious roots of Periploca sepium