烤烟新品种湘烟3号的选育及其特征特性

Breeding and Characteristics of New Flue-Cured Tobacco Variety Xiangyan 3

湘烟3号是中国烟草中南农业试验站以MSYZ206-9为母本、82-11-7为父本的F1杂交组合,该品种遗传性状稳定,植物学和农艺性状优良,大田长势较强,易烘烤,特别是上部叶不易挂灰,烘烤特性优于K326;原烟多橘黄,色泽较强,油分较多,结构疏松,身份适中;产量、产值、均价和上等烟比例等经济性状指标优于K326;抗性表现为抗黑胫病,中抗青枯病、根结线虫病,中感TMV、PVY,感CMV,多年大田自然表现中抗赤星病,其综合抗性接近或优于K326。2010年通过全国烟草品种审定委员会评审。

Xiangyan 3 is a male sterile hybrid developed with MSYZ206-9 as the maternal parent and 82-11-7 as the paternal parent.The genetic traits of Xiangyan 3 were stable.The major botanic and agronomic characteristics were excellent.The plants grew rather uniformly and strongly in the field.Its leaves were easier to be cured than that of the check（K326）,especially the upper leaf.The color of its raw tobacco,with strong color intensity and rich oil,was orange.Its raw tobacco was medium and open.The economic characteristics of Xiangyan 3,such as yield,value,average price,ratio of high quality tobacco were better than those of the check（K326）.Xiangyan 3 was resistant to black shank,moderately resistant to Granville wilt,M.incognita,yet moderately susceptible to TMV and PVY,susceptible to CMV.Years of field tests showed it was moderately resistant to brown spot.Its synthesized resistance was close to or better than the check（K326）.It passed the Chinese tobacco variety evaluation in 2010.