Airborne Ericaceae Pollen Grains in the Atmosphere of Vigo (Northwest Spain) and Its Relationship with Meteorological Factors QTL Mapping and Correlation Analysis for 1,000-Grain Weight and Percentage of Grains with Chalkiness in Rice Difference in Tree Growth Responses to Climate at the Upper Treeline: Qilian Juniper in the Anyemaqen Mountains Research on Yield Components among Apricot Seedlings of F1 Populations Research on Yield Components among Apricot Seedlings of F1 Populations Study on phenotypic variation of Paphiopedilum micranthum population