烤烟新品种豫烟四号的选育及特征特性

烤烟新品种豫烟四号(6614)是以许金一号为母本,Coker176为父本,用系谱法选育而成。2006年3月通过全国烟草品种审定委员会审定。经过多年多点试验,其主要农艺性状稳定,田间生长整齐一致,田间自然株高135.6cm,打顶株高90.78cm,有效叶20-22片,腰叶长58-65cm,腰叶宽30-35cm,叶形宽椭圆,叶面较平,叶片厚薄适中,着生均匀。花序紧凑,花色淡红色。田间生长势强,大田生育期110-113d,抗黑胫病、中抗根结线虫病、黄瓜花叶病,感赤星病。耐旱、耐瘠薄,田间叶片分层落黄,易烤。烤后原烟颜色橘黄,油分较多,色度较强,结构疏松,叶片厚度适中。总糖含量23.72%,还原糖19.37%,烟碱2.82%,总氮1.8%,蛋白质8.19%,钾含量1.23%,主要成分含量适宜,内在化学成分协调。平均产量2273.83kg/hm2左右,均价7.01元/kg,上等烟比例21.86%。产值15909.22元/hm2。综合性状优于对照NC89。

Breeding and Evaluating of a New Flue-cured Tobacco Variety Yuyan 4 and its Characteristics

A new flue-cured tobacco variety Yuyan 4 was developed from Xujin 1(female parent) and coker176(male parent) with a genealogy method and passed the national tobacco evaluation in March 2006.The results of multi-location trials for several years showed that with stable agronomic characteristics,Yuyan 4 grew uniformly and vigorously in field and had a growing period of 113-110 days.It was resistant to black shank,moderately resistant to root-knot nematode and CMV.Its leaves matured well layer by layer and easy to be cured.The cured leaves were in orange color,loosely structured,oily with strong aroma and average body.The content and ratio of the major chemical components were suitable.Its average yield,price,first grade leaf proportion,output value were 2273 kg / hm2,7.01yuan / kg,21.86% and 15909.22 yuan / hm2,respectively.Yuyan 4 is superior in terms of general characteristics compared with the control variety NC89.