花粉生活力的强弱直接关系到杂交育种的成败。在花粉的采集及贮存过程中,许多因素如花枝培养的条件、花粉采集的日期,收粉后的失水时间及含水率,花粉的贮存温度及贮存时间等对花粉的质量和生活力等均具有重要的影响。为了确定这些因素对杨树花粉生活力的 Pollen vitality is directly related to the success of hybrid breeding. During the collection and storage of pollen, many factors, such as the conditions of flowering and sowing, the date of pollen collection, the water loss time and water content after pollination, the storage temperature and storage time of pollen, etc. Has a significant impact. To determine these factors on the poplar pollen viability