烤烟新品种（系）试验初报

为筛选出适合湘东烟区生态条件并达到优质、适产、抗性好的烤烟新品种,2006年在湖南浏阳对7个烤烟品种(系)进行了田间比较试验。结果表明:(1)97-6-4和97-7-11株高高于CK,节间距以97-6-4最大,各品种的有效叶片数均少于CK,单叶重除HY-9-7和HT06外均大于CK,各品种的大田生育期相差不大,介于116￣121天之间。(2)各品种对普通花叶病的抗性均比CK好,以CY9506抗性最强;HT06对黑胫病的抗性最好;对青枯病的抗性,97-6-4最强;对气候斑的抗性,各品种均比CK好。(3)烟叶产量和产值以CY9506最高,上中等烟比例以HT06最高。(4)烟叶外观品质和内在质量均以CY9506和97-7-11为最佳。从各品种(系)烟叶产量和品质综合分析来看,CY9506和97-7-11表现最好,可以在浏阳烟区进一步示范验证。

A Preliminary Report on Flue-cured Tobacco Variety Trail

In order to select quality flue-cured tobacco varieties,which were appropriate for planting at Liuyang,the field comparison test of 7 varieties were conducted and their agronomic,botanic,economic characteristics,disease resistance,outward appearance quality and inherent quality were studied at Liuyang,Hunan province.The results showed that:(1) the plant height of 97-6-4 and 97-7-11 were higher than CK(K326),the node length of 97-6-4 were biggest in all varieties,the average leaf number of 6 varieties were less than that of CK(K326),the single leaf weight of 6 varieties were higher than CK(K326) besides HY-9-7 and HT06,the growing stage of all varieties had no significant different,which were middle maturing variety,between 116 d and 121 d.(2) The disease index against TMV of 6 varieties were lower than CK(K326),the disease index against the Granville wilt of 97-6-4 were lowest in 7 varieties,the disease index against Black shank disease of HT06 were lowest in 7 varieties,the disease index against Climate spot of CK(K326) were higher than that of 6 varieties.(3) The maximum yield and value were observed at variety CY9506.HT06 had the highest proportions of top and middle class tobacco leaves.(4) CY9506 and 97-7-11 possessed the best outward appearance quality and inherent quality.Based on the yields and qualities,CY9506 and 97-7-11 should be recommended for further demonstration at Liuyang.