玉米制种的花期相遇与调整玉米制种过程中，父、母本花期相遇是关系制种成败：关键。玉米雄穗的花粉在正常气候条件下，只有５～６小时的生命力，而雄穗的花丝抽出苞叶后６～７天内仍有接受花粉的能力，因此在安排父、母本不同期播种时，宁可母等父，使母本花丝抽出早于父... Occurrence of maize seeding flowering and adjustment of corn seed production process, the parent and female flowering is the relationship between seed production success or failure: the key. Pollen of maize tassel has only 5 to 6 hours of vitality under normal climatic conditions, while tassel filaments still have the ability to accept pollen within 6 to 7 days after extracting the husk. Therefore, , Rather mother and other parents, so that female parent filaments out earlier than the father ...