Correlation Analysis and QTL Mapping of Grain Shape and Grain Weight in Rice under Upland and Lowland Environments Mapping QTLs for Uppermost Internode Diameter and Thickness and Area of Culm Wall with Doubled-Haploid Population in Wheat  QUANTITATIVE GENETIC ANALYSIS OF SEEDLING ROOT CHARACTERS IN RICE QTL and QTL × Environment Effects on Agronomic and Nitrogen Acquisition Traits in Rice Linkage Map Construction and Quantitative Trait Loci Analysis for Bolting Based on a Double Haploid Population of Brassica rapa QTL Analysis of Lodging Resistance-related Traits Under Hydroponic Culture in Rice Genetic Analysis of Quantitative Traits Associated with Soluble Carbohydrate Content of Doubled Haploid Population in Wheat(Triticum aestivum L.) Stem Genetic Analysis and Gene Mapping of the Leaf Traits in Rice (Oryza sativa L.)