烤烟新品种(系)试验初报

A Preliminary Report on Flue-cured Tobacco Variety Trail

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。

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.