白肋烟新品种云白3号的选育及其特征特性

云白3号是采用常规杂交选择途径而育成的白肋烟新品种，2010年经全国烟草新品种农业评审，2012年通过全国烟草新品种审定。该品种生长整齐，长势强，有效叶较多，农艺性状表现较好。较耐肥，适应性较强。高抗TMV，中抗黑胫病，中感南方根结线虫病，感赤星病。主要经济性状表现较优。全国品种区域试验结果表明，产量、产值在4省区具有良好的稳定性和丰产性。烟叶总体外观质量、物理特性略优于对照，化学成分协调性、感官质量与对照相当。

Breeding of a New Burley Variety Yunbai 3 and its Characteristics

The Yunbai 3 is a new burley tobacco variety by pedigree selection. It was sent to agriculture accreditation of national new tobacco varieties in 2010, and passed the validation in 2012. It grew tidy in field and had stronger growth vigor with more effective leaves and excellent agronomic preperties. The variety has better fertilizer tolerance and adaptation. Yunbai 3 is high resistant to TMV, resistant to black shank, less sensitive to south root knot nematode, sensitive to brown spot. The main economic characters were fine. The regression analysis of the environment interaction effects in national variety test and stability showed that, the yield and output value had good stability and high yielding in four provinces. The overall appearance quality and physical characteristics of the leaves were slightly better than those of control variety. Harmony of chemical composition and sensory quality were close to those of the control variety.