李雪君，孙计平，孙焕，平文丽，李芳芳，李耀宇，吴家静，俎焕新，李旭辉，侯咏

摘  要：为了选育抗根部病害的烤烟新品种，以南江3号为母本、双抗70为父本，得到纯系品种许金101。多年试验结果表明，该品种遗传性状稳定，主要经济性状优于对照NC89和中烟100。抗镰刀菌根腐病，中抗黑胫病和根结线虫病，中感青枯病、CMV和PVY，综合抗病能力与NC89相当;烘烤特性好，烤后原煙外观质量较好，化学成分较协调，能够满足工业企业的需要。该品种根部病害抗性较好，特别是对镰刀菌根腐病的抗性提高，适宜在我国黄淮烟区特别是平原区种植。

关键词：烤烟;品种;许金101;选育;特征特性

Breeding and Characterization of a New Flue-cured Tobacco Variety Xujin 101

LI Xuejun， SUN Jiping， SUN Huan， PING Wenli， LI Fangfang， LI Yaoyu， WU Jiajing，

ZU Huanxin， LI Xuhui， HOU Yong

（Tobacco Research Institute of Henan Academy of Agricultural Sciences， Key Laboratory of Green Prevention and Control of Tobacco Diseases and Pests in Huanghuai Tobacco Area of Tobacco Industry， Xuchang， Henan 461000， China ）

Abstract： In order to obtain new flue-cured tobacco varieties with improved resistance to root diseases， Xujin 101 was bred from Nanjiang No .3 as the female parent and Shuangkang 70 as the male parent. The results of many years tests showed that the genetic traits of this variety are stable， and the main economic characters are better than that of NC89 and Zhongyan 100. Xujin 101 is resistant toFusariummycorrhizal rot， middle resistant to black shank and root knot nematode， middle sensitive to bacterial wilt， CMV and PVY， and its comprehensive resistance to disease is comparable to that of NC89. The variety has good baking characteristics， and good appearance quality of roasted tobacco leaves. The chemical composition is more coordination， and integrated performance can meet the needs of industrial enterprises. The resistance of this variety to root diseases was better， especially toFusariummycorrhizal rot. It is suitable for planting in Huanghuai tobacco areas， especially in the plain area， and the potential for popularization and application is great.

Keywords： flue-cured tobacco; cultivated variety; Xujin101; breeding; characteristics

品种是烟叶高质量发展的重要基础，是对烟叶品质、植株抗性及产量起决定作用的内在因素^[1-2]。虽然近年来我国在烤烟品种选育上取得了一定的成绩^[3-5]，分子育种取得了阶段性成就^[6-7]，也培育出了一批分子改良品种^[8-10]，但是烟草种植品种单一化问题仍然存在，且在河南省尤为突出^[11]。近20年来，河南省主栽品种在豫西南为云烟87，豫中为中烟100，这两个品种的种植面积曾占全省植烟面积的90%以上，目前仍占有70%左右。但随着种植年限的增加，土壤病菌的积累和连作比例的增大，这两个主栽品种对根部病害的抗性越来越差，已经严重影响到烟叶的产量和质量，因此选育出根部病害抗性较好的新品种已成为河南省烟叶生产发展的重中之重^[12-14]。

中烟100具有产量高、易烘烤等优点^[15-16]，长期以来烟农已经习惯于该品种的种植模式。……