Paternity analysis and pollen dispersal for the second generation clonal seed orchard of Pinus massoniana Paternity Identification and Genetic Structure Analysis on the Wild Population in Paeonia lactiflora Pallas(Paeoniaceae) Determination of Pollen Quantity and Features of Pollen Dispersal for 41 Spray Cut Chrysanthemum Cultivars Determination of Pollen Quantity and Features of Pollen Dispersal for 41 Spray Cut Chrysanthemum Cultivars Paternity Identification and Genetic Structure Analysis on the Wild Population in Paeonia lactiflora Pallas(Paeoniaceae) On Dispersal Efficiency of Picea Pollen