云贵高原湿冷型气候对烤烟品种(系)发芽特性的影响  

Effect of clammy climate on the germination of tobacco varieties (lines) in the Yunnan-Guizhou plateau

作　　者：李振华[1] 陈航[2] 龙明锦[1] 刘一灵[1] 叶定勇[1] 刘红开[3] 

机构地区：[1]贵州省烟草科学研究所,贵阳550081 [2]长江大学园艺园林学院,湖北荆州434025 [3]中国农业大学农学与生物技术学院,北京100193

出　　处：《东北农业大学学报》2013年第4期106-110,共5页Journal of Northeast Agricultural University

基　　金：贵州省烟草专卖局(公司)青年学者自主项目(201231);贵州省地方标准制修订项目(201243)

摘　　要：在8～10℃,相对湿度>60%,光照和黑暗12 h交替的条件下对国我主栽的20份烤烟品种(系)进行发芽试验,评价其耐湿冷性。结果表明,不同品种发芽率为78.67%～98.00%,变异系数为6.62%。浸泡液电导率和相对电导率与种皮色泽a值呈显著正相关,与种皮色泽h值呈显著负相关;发芽率与千粒重呈显著正相关,与浸泡液电导率呈显著负相关。20份烤烟品种(系)可划分为耐湿冷型、普通类型、湿冷敏感型等3个类群。依据种皮色度、活力和发芽率筛选出贵烟201、K326、云烟87、红花大金元等耐湿冷品种。To evaluate the viability of tobacco varieties dudng low temperature and high humidity environment, 20 tobacco varieties were used to germination in 8-10 ~C, RH〉60%, day and night 12 h alternated. The results showed that the range of the germination percentage of tobacco varieties were 78.67%-98.00%, and CV was 6.62%. Solution conductivity and relative conductivity had significant correla- tion with a value and significant negative correlation with h value. Germination rate had significant correlation with 1000-grain weight and significant negative correlation with electric conductivity. 20 tobacco varieties were divided into clammy tolerance types, common types and clammy sensitivity types. The study also selected Guiyan-201, K326, Yunyan-87, Hongda, four clammy tolerance varieties according to seed color, vitality and germination rate.

关 键 词：烤烟 品种 湿冷胁迫 种皮色泽 发芽率 活力 

分 类 号：S572[农业科学—烟草工业]