烤烟雄性不育一代杂种的制种技术

Studies on seeds production of MSF_1 hybrid in tobacco

通过对柱头活力、花粉活力、盛花授粉季节、授粉方法及制种效率几个方面杂交制种技术的研究，结果表明，3列和2例形状的柱头活力强，花开前1d到花开后1d的柱头活力强；烟草花粉容易保存，常温常湿保存3d或常温干燥15d仍有很强的活力；盛花期在7月下旬比在9月上旬的制种结实率高；采用毛笔授粉效率高、每人每天可生产500g种子。

To solve the problem of hybrid seeds production in tobacco and make use of hybrid vigor, we did a systematic research on it. According to stigma vitality, pollen vitality, the flourshing anthesis pollination season, pollination methods and seeds production efficiency, the main results were summarized as follows: Stigma vitality was the strongest as it was two and three rows, and the strongest period was from one day before anthesis to one day after anthesis. pollen still kept fine vitality 3 days at normal temperature storage or 15 days in refrigerator as a cold storage. During the flourishing anthesis pollination season the seeds production could gEt a fine effect from 25/7-5/9, If taking the pollination method by brush, one person could prepuce 500 g seeds each day.