烟草种子成熟变化及判定方法研究

Study on the Change and Judgment of Tobacco Seed Maturity

通过科学地判断烟草种子成熟度,进而适时采收对于优质种质资源的保存、利用与开发以及提高种子品质与产量等在烟草实际生产中均具有重要意义。本文研究了烟草种子成熟过程中形态生理变化,包括种子形态变化(颜色)、种子内部生理指标变化(含水量、发芽指标)以及种皮叶绿素荧光指标变化规律;分析了这些指标在判断烟草种子成熟度的方面的应用,并进行了研究展望,提出了今后此类研究的方向及应该注意的问题。

Study and judgment of tobacco seed maturity, and then chose the optimum harvest time have important sig- nificance to some agriculture production problems, such as： high quality germplasm resource conservation, utilization, development and improve seed quality and production. This study research the changes during tobacco seed maturity, including morphological changes （seed color）, physiological changes within the seeds （water content, germination） and chlorophyll fluorescence （CF） in seed coat changes; and presented the application of these metric to judge the to- bacco seed maturity; further studies in this fields and issues that be occurred are also addressed in the paper.