烟草抗黑胫病和TMV种质资源的鉴定与评价

2010～2012年采用温室苗期接种鉴定的方法,对146份烟草种质资源开展黑胫病和TMV的抗性鉴定与评价。结果表明,中抗黑胫病种质有118份,占供试种质的80.82%;中感黑胫病种质28份,占供试种质的19.18%。对TMV免疫的种质有19份,占供试种质的13.01%;中抗TMV的种质19份,占供试种质的13.01%;中感TMV的种质107份,占供试种质的73.29%;感TMV的种质1份,占供试种质的0.69%。抗黑胫病并对TMV免疫的种质有台烟七号(T.T.7)、AK6、Coker86、NC567、SC71、SC72、Coker176、朝鲜抗赤、筑波1号、Burley21、Kentucky17和Tennessee90,共12份,该12份种质可为烟草抗病育种的亲本选择提供抗源。

Resistance Identification and Evaluation of Tobacco Germplasms to Tobacco Black Shank and TMV Disease

The identification and evaluation of 146 germplasms resistance to tobacco black shank and TMV disease were carried out in greenhouse from 2010-2011.The results indicated that,to tobacco black shank disease,118 germplasms were medium resistant,accounting for 80.82%,and 28 were medium sensitive,accounting for 19.18%.To TMV,19 germplasms were immune,accounting for 13.01%,19 were medium resistant,accounting for 13.01%,107 germplasms were medium sensitive,accounting for 73.29% and 1 was sensitive,accounting for 0.69%.12 germplasms,including T.T.7,AK6,Coker86,NC567,SC71,SC72,Coker176,Korean kangchi,Zhubo1,Burley21,Kentucky17 and Tennessee 90,which were medium resistant to tobacco black shank disease and immune to TMV,may be utilized as parent materials in breeding for disease resistance.