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2013年春季对83份烟草种质资源进行繁种更新,其中烤烟45份晒烟38份,参试种质完成了主要特征特性的田间鉴定。结果表明:68份种质种子发芽率符合入库要求;参试种质间生育期、形态特征、主要农艺性状等差异较大,生育期变异系数为5.7%~16.9%,依次为移栽至现蕾天数>移栽至中心花开放天数>全生育期>苗龄,全生育期最长为红大11(192.0 d),最短为江油烟(149.0 d);主要农艺性状变异系数为6.4%~27.1%,依次为叶数>节距>茎叶角度>株高>叶宽>花冠直径>花萼长度>叶长>茎围>主侧脉夹角>花冠长度;田间自然发病以普通烟草花叶病(TMV)最严重,青枯病次之,黄瓜花叶病(CMV)、黑胫病、马铃薯Y病(PVY)零星发生,广杂87、黑叶一号、鹤山中南、奀种牛利等种质自然发病率为零。
In the spring of 2013, 83 tobacco germplasm resources were updated in detail. Among them, 38 tobacco-cured tobacco were cured, and the germplasm of the tested germplasm completed the field identification of the main characteristics. The results showed that the germination rate of 68 germplasm seeds accorded with the requirements of storage. The germination period, morphological characteristics and major agronomic traits of germplasm between the two germplasms were different, with the coefficient of variation at the growth stage being 5.7% ~ 16.9% Budding days> days from transplanting to central flower> full growth period> seedling age, the longest growing period was Hongda 11 (192.0 days), the shortest was Jiangyouyan (149.0 days); the coefficient of variation of main agronomic traits was 6.4% ~ 27.1%, followed by the number of leaves> pitch> stem and leaf angle> height> leaf width> corolla diameter> calyx length> leaf length> stem circumference> main lateral veins angle> corolla length; Leaf disease (TMV) is the most serious, followed by bacterial wilt, cucumber mosaic disease (CMV), black shank disease, potato y disease (PVY) sporadic, wide hybrid 87, black leaf one, Heshan south, Lee and other germplasm natural incidence of zero.