水引发对烟草品种活力和萌发特性的影响  

Effects of Priming on the Vitality and Germination of Tobacco Varieties

作　　者：李振华 龙明锦 刘一灵[2] 叶定勇 王秀龙 

机构地区：[1]贵州省烟草科学研究院,贵阳550081 [2]贵州大学农学院,贵阳550025

出　　处：《中国烟草科学》2013年第5期67-71,共5页Chinese Tobacco Science

基　　金：科技部农业科技成果转化资金项目(2010GB2F200425);贵州省地方标准项目"贵州省烤烟种子生产技术规程"

摘　　要：为了解水引发回干处理后烤烟品种萌发率与种子活力的关系,以10个烤烟品种为试材,对种子色泽、电导率和萌发特性进行了研究。结果表明,10个品种电导率的变异范围大于色度值。浸泡液电导率与种皮黄度呈显著负相关;绝对电导率和相对电导率与种皮红度呈显著负相关。10个烤烟品种可划分为‘低活力、高萌发率’,‘中等活力、高萌发率’,‘高活力、低萌发率’3个类型。引动与回干处理相结合,可以显著提高种子萌发的整齐性和一致性,对低活力的品种作用尤为明显,76 h时低活力的品种萌发率基本也都达到90%以上。To evaluate the effects of priming on the seed germination of various tobacco varieties, seed colors, electric conductivity and germination rate of 10 tobacco varieties were used to study. The results showed that：CV of the electric conductivity was bigger than seed colors. There was significant correlation between seed color and electric conductivity. 10 tobacco varieties could be divided into 3 groups：low viability with high germination, moderate viability with high germination, and high viability with low germination types. Primed and dried treatment improved the speed and uniformity of seed germination, especially for low viability varieties, whose germination could reached 90%in 76 h.

关 键 词：烤烟 品种 种子 引发 回干 色泽 萌发 活力 

分 类 号：S572[农业科学—烟草工业]