Quantitative HPLC analysis of main effective constituents and integrated chemical quality index(ICQI)in Dida Identification of Quantitative Trait Loci for Rice Quality in a Population of Chromosome Segment Substitution Lines Rice RVA Profile Characteristics and Correlation with the Physical/ Chemical Quality Effect of Irradiation on Sterilization and Quality of Edible Areca Nut Characteristics of Nutrient Uptake and Utilization of Mid-Season Hybrid Rice under Different Nitrogen Application Rates in Different Locations of Southwest China Effects of Simulated Acid Rain and Al Regulation on Tea Quality and Its Al Accumulation