烤烟新品种云烟202的选育及特征特性

云烟202系选用MS KX13作母本,KX14为父本育成的烤烟雄性不育杂交种.该品种农艺性状稳定,田间生长整齐一致.植株塔型,叶形长椭圆,大田生育期110-115 d,经济性状在多年异地试验中均优于或相当于K326.烟叶成熟特征明显,分层落黄好,易烘烤.烤后原烟深黄、金黄色居多,结构疏松,油分多,色度强,化学成分含量适宜,比例协调.抗TMV,抗黑胫病,低抗赤星病,中抗青枯病、CMV,感南方根结线虫病、PVY.云烟202是一个品质、抗性、产量、适应性等方面较能兼顾的优良新品种,特别适宜在TMV、赤星病和黑胫病高发地区种植.

Breeding and selecting of flue-cured tobacco variety Yunyan202 and its characteristics

Yunyan202,a new flue-cured tobacco variety of male sterile hybrid is developed by crossing MS KX13(female parent) and KX14(male parent).With stable agronomic characteristics,Yunyan 202 grows rather uniformly in field.It has a tower-shaped plant and oblong lamina.It has a growing period of 110-115 days in the field.The tests of many years and in many places showed that Yunyan 202 is superior or similar in terms of economic returns compared with the control variety K326.Its leaves mature well layer by layer and are easy to cure.The cured leaves are in orange color,loosely structured,oily and with strong chroma.The content and ratio of the major chemical components were suitable.It is resistant to TMV and black shank,moderately to resistant to Granuville wilt and CMV,low resistant to brown spot.Yunyan 202,an excellent flue-cured tobacco variety with fine leaf quality,high yield and good adaptability,can be grown in areas with high incidence of TMV,brown spot and black shank.