Differences in Absorption and Distribution of Main Mineral Elements Between Male and Female Populus cathayana Seedlings Sexual difference of insect phototactic behavior and related affecting factors. Progress in Study on Sexual Differences of Woody Dioecious Plants Comparison of floral morphology and pollination characteristics between the sexes in Eurya obtusifolia Inter-sexual difference of growth characteristic for Populus cathayana natural forests in the Xiaowutai Mountains Sexspecific Responses of Flowering Phenology and Floral Morphology of Humulus scandens to Drought