Isolation of Differentially Expressed Genes from Wheat Cultivars Jinan 17 and Yumai 34 with Good Bread Quality under Heat Stress during Grain Filling Stage Effects of nitrogen fertilizer and genotypes on the nitrogen and phosphorus accumulation of winter wheat grain during grain-filling period in a sub-humid farmland eco-system Effects of 1, 2, 4-trichlorobenzene on physiological characteristics during grain filling stage and grain yield of rice of different genotypes Effect of Nitrogen and Phosphorus on the Amino Acids in Root Exudates and Grains of Rice during Grain Filling Chilling Disaster Factors in Maize Reproductive Stage Based on Crop Growth Model Effects of Transient High Temperature during Grain Filling Period on Starch Formation in Wheat (Triticum aestivum L.)