Mapping of QTL Controlling Low-temperature Germinability in Rice Mapping of QTL Controlling Seedling Cold Tolerance Using Recombinant Inbred Lines of Rice (Oryza sativa L.) Mapping and Analysis of QTLs on Maternal and Endosperm Genomes for Histidine and Arginine in Rice (Oryza sativa L.) across Environments Mapping of QTL Controlling Seed Vitality in Rice under Different Temperature Conditions Mapping of QTL Conferring Cold Tolerance at Early Seedling Stage of Rice by Molecular Markers Mapping of QTL for Fertility Restoration of HL-type Cytoplasmic Male Sterility in Rice(Oryza sativa L.)