Effects of Chemical Regulation on Grain Relative Plumpness and Its Relationship with Yield and Grain Quality of Large Panicle Japonica Rice Characterization and Genetic Analysis of Grain Filling Rate of Ludao and Restorer Line C-Bao in Japonica Rice(Oryza sativa L.) Post-Anthesis Changes in concentrations of Polyamines in Superior and Inferior Apikelets and Their Relation with Grain Filling of Super Rice QTL Mapping for Grain Filling Rate and Thousand-Grain Weight in Dif-ferent Ecological Environments in Wheat Effects of N and S application on grain filling characteristics and yield of winter wheat. Effect of PASP-KT-NAA on Leaf Senescence and Grain Filling Rate during the Grain-Filling Period in Different Temperature Zones Effects of controlling irrigation on endogenous hormone content and grain filling rate of wheat under rain proof shelter condition