20619与不同烤烟品种杂交F_(1)代的筛选分析  

Screening and Analysis of F_(1)Generation from Hybridization among 20619 and Different Flue-Cured Tobacco Varieties

作　　者：邓征宇 肖钦之 周向平 刘峰 郭文龙 李小慧 张斌[2] DENG Zheng-yu;XIAO Qin-zhi;ZHOU Xiang-ping;LIU Feng;GUO Wen-long;LI Xiao-hui;ZHANG Bin(Yongzhou Municipal Tobacco Company,Hunan Provincial Tobacco Corporation,Yongzhou 425000,PRC;Hunan University of Science and Engineering,Yongzhou 425199,PRC)

机构地区：[1]湖南省烟草公司永州市,湖南永州425000 [2]湖南科技学院,湖南永州425199

出　　处：《湖南农业科学》2024年第3期10-14,共5页Hunan Agricultural Sciences

基　　金：湖南省烟草公司永州市公司科技项目(永烟运[2023]16号08)。

摘　　要：将G28、Coker176、筑波一号和YZ03这4个烤烟品种与20619分别作为父本、母本进行杂交,获得8个F_(1)代,通过比较各品系及亲本的生育期、农艺性状、经济性状、外观质量、化学成分、SPAD值等指标来评价子代与亲本的优劣。结果表明:与亲本相比,F_(1)代的团棵期均有所推迟,导致大田生育期延长;F_(1)代的有效叶数均低于其亲本,但是,腰叶长和腰叶宽均高于其亲本;F_(1)代C3F烟叶的氯含量普遍偏低,烟叶整体表现较好,在颜色、成熟度、结构方面与亲本差异不明显;以SPAD值进行亲子相关性分析,发现正交组合中母本的亲子相关性均高于父本,而在反交组合中父本的亲子相关性均高于母本,说明杂交中高亲值作为母本,F_(1)出现优势性状的概率更高。总体来说,筑波一号×20619的F_(1)代大田生育期较短,腰叶宽改善显著,产量为171.2 kg/667m^(2),烟叶化学成分比例协调,整体表现较好,具有一定的推广应用前景。Four flue-cured tobacco varieties,namely G28,Coker176,Zhubo 1,and YZ03,were hybridized with 20619 as male and female parents,respectively,and eight F_(1)generations were obtained.The reproductive period,agronomic traits,economic traits,appearance quality,chemical composition,and SPAD value of each strain and parent were compared to evaluate the advantages and disadvantages of the offspring and parents.The results show that compared with the parents,the resettling stage of the F_(1)generation is delayed,resulting in an extension of the reproductive period.The number of effective leaves in the F_(1)generation is lower than that of its parents,but the waist leaf length and width are higher than those of its parents.The chlorine content in C3F tobacco leaves of F_(1)generation is generally low,and the overall performance of tobacco leaves is good,with no obvious differences in color,maturity,and structure from its parents.The SPAD value is used to analyze the parent-child correlation,and it is found that the female parent-child correlation is higher than that of the male parent-child correlation in the orthogonal combination,while the male parent-child correlation is higher than the female parent-child correlation in the reciprocal combination.It indicates that F_(1)has a higher probability of dominant traits when the female parent has a high parental value in hybridization.Overall,the F_(1)generation field of Zhubo 1×20619 has a short reproductive period,a significant improvement in waist leaf width,and a yield of 171.2 kg/667m^(2).There is a coordinated proportion of chemical components in tobacco leaves and a good overall performance,which has a certain popularization and application prospect.

关 键 词：烤烟 正交 反交 杂交F_(1)代 生育期 

分 类 号：S572[农业科学—烟草工业]