全国白肋烟品种区域试验初报

为筛选出适合全国不同产区种植并达到优质、适产、抗性好的品种,对7个白肋烟品种在云南宾川进行了区域试验,结果表明:(1)株高除B6、B7外都高于CK,其中以B2的株高最高。单株有效叶数平均21.31片,比CK少0.91片。大田生育期均为94d,属中熟品种。(2)抗病性性鉴定B2、B5对TMV的病情指数分别为41.07和31.70,抗性为MR。田间自然发病率团棵期黑胫病以B6发病率最高;在上二棚成熟期黑胫病以B7发病率最高。(3)上中等烟比例以B5为最高,产量以B1最高,超过CK,B5、B3分别居第二位和第三位,高于CK,其它品种均未超过对照,产值以B5最高。(4)农艺性状、抗病性、经济性状综合比较,B3、B1较适宜在云南宾川种植示范。

Study on Variety Regional Test of Burley Tobacco

In order to select quality Burley tobacco varieties,which were appropriate for planting at different production district,the field comparison test of 7 selected varieties were conducted and their agricultural and economic character,disease resistance were analysized.The agricultural character results showed that the plant height were higher than that of CK besides B6,B7.The plant height of B2 was the highest.The leaf number of 7 varieties were average 21.31 respectively,which were less than that of CK.The growing stage of all varieties had no significant different,which were middle maturing variety.The disease index of B2,B5 for TMV were 41.07and 31.70,and resistance of them was MR.The disease incidence B6 black shank was highest in the rosette stage,and the disease incidence B7 black shank was highest in the mature stage.The first-class tobacco proportion of B5 was highest.The yield of B1 was highest,and was bigger than that of CK.The yield of B5,B3 was second and third respectively.The output value of B5 was the highest.B3,B1 had better total characteristics so were consider primarily to be quality Burley tobacco varieties,which appropriated for planting at BinChuan.