Breeding and Characteristic of Sorghum bicolor×S.sudanense ‘Jinmu 1’ Effects of AMF inoculation on the growth and chlorophyll fluorescence of Sorghum bicolor × S. sudanense in coal wastes Elite Breeding Germplasms Selection and SSR Analysis of Sorghum bicolor ? S. sudanense Induced by Space Flight Effect of Planting Density and Stubble Height on Production Performance of Sorghum bicolor ? S. sudanense Effects of Phenanthrene Polluted soils on the Growth and Chlorophyll Fluorescence Characteristics in Leaves of Sorghum bicolor×S. sudanense Seedlings