LJ925 was developed by crossing 6603 as female parent with high resistant to tobacco mosaic virus and K326 as male parent through hybridization and pedigree selection. LJ925 grew strongly in fields, was high resistant to tobacco mosaic virus, moderately susceptible to blank shank, brown spots, mosaic virus and root-knot nematode, susceptible to granville wilt. LJ925 was easy to cure, and the colors of cured leaves were lemon to orange. Leaf chemical composition of 9-13 positions was acceptable, with reductive sugar 21.00%, total sugar 24.74%, alkaloid 1.79%, total nitrogen 1.74%, K2O 1.55%, chlorine 0.40%, starch 5.51%. Comparing with NC89, LJ925 had better economic value, better appearance quality and smoking quality. LJ925 had wide adaptability and good quality, and it can be grown in drought areas or continuous cropping fields, and should be transplanted earlier, and with caution of potato virus Y.

Effects of Mudanjiang’s ecological condition on aroma substances constituent contents in different genotypic flue-cured tobacco leaves were studied.Results indicated that total neutral aroma constituent contents of upper leaves varied from high to low in the order as CF202,NC89,911-21,7581,Y8303,Windel,JY-02,9625,LJ237,while that of middle leaves was Y8303,Windel,CF202,NC89,911-21,9625,JY-02,LJ237,7581.In conclusion,CF202,NC89 and Y8303 have better leaf qualities and are favorable for promotion and cultivation in Mudanjiang tobacco production zone.

Taking nine flue-cured tobacco varieties as the tested materials,the chromoplast pigment and its degraded products contents in different genotypes of flue-cured tobacco leaves in Mudanjiang tobacco-planting area were studied.The results indicated that the content of carotenoid in CF202,Windel and Y8303 was higher.The content of chlorophyll and carotenoid in NC89,JY-02 and 911-21 was more coordinative.The degraded products of chlorophyll and carotenoid were quite different among different genotypes of flue-cured tobacco leaves.

The gray correlation degree was applied to reveal the relationship between agronomic characters and economic indexes of the 3 Major flue-cured tobacco varieties in Mudanjiang in 2007.The results indicated that the closest factors to yield were number of leaf,the maximum leaf length and the plant height,followed by the maximum leaf width and stalk circumference.The closest factors to quality were number of leaf,the maximum leaf width and the plant height,followed by the stalk circumference and maximum leaf length.The agronomic characters in order of grey correlation degree to the average price,ratio of grade upper-middle tobacco and top tobacco were followed as the maximum leaf length,the plant height,stalk circumference,number of leaf and maximum leaf width.It is suggested that plant height,number of leaf,the maximum leaf length are more important than other traits in high yield and good quality of flue-cured tobacco breeding.

随着采收日期的延迟,烟叶中烟碱含量表现出逐渐增加的趋势,蛋白质和游离氨基酸含量的变化没有呈现出明显的规律性;不同采收日期之间烟碱含量差异显著,蛋白质和游离氨基酸含量差异不显著;3个烟叶部位之间烟碱、蛋白质、游离氨基酸含量差异不显著.

提起黑龙江省牡丹江市,大家就会想到白雪茫茫的林海雪原和机智勇敢的剿匪英雄.中国烟草进出口烟叶检测站就坐落在这人杰地灵的地方.从1998年组建至今,短短的六年时间里,认真学习和践行"三个代表"重要思想,实现了中国烟草转基因检测技术,从零起步到世界领先的大踏步跨越.

龙江911品种由于其良好的适应性和易烤性，在生产上受到普遍的欢迎。与NC89、龙江851等品种相比，龙江911生产特性属于叶片稍薄的品种，抵抗普通花叶病和野火病。在生产上应采取增……

罗国良同志是全国“五一”劳动奖章获得者，现任牡丹江烟叶公司党委书记、经理。1998年调任宁安烟叶经销公司。在工作中他政治原则性强，善于从大局出发，注重统揽全局，把握方向，工作有思路，有条理，勇于改革创新，使宁安烟叶经销公司在全省烟叶经销企业中脱颖而出，在全国烟叶市场产大于销的艰难形势下，一手抓烟叶生产，提高烟叶质量；一手抓烟叶销售。在大灾之年取得了烟叶的丰收，企业生产和销售不仅没有滑坡，而且稳中有升。成为全省烟叶经销企业的标兵，当地财政支柱。……

在祖国的北疆,林海深处,有一座开放城市-牡丹江市.在她的西北角,矗立着一座花园般的美丽院落,她,是黑龙江省烟草行业科研教育中心;是中国烟草东北农业的科研试验中心;也是中国烟草进出口烟叶检测中心.她,是1985年成立的黑龙江省烟草科学研究所;又在1989年依托科研所建立了黑龙江省烟草职工中专学校;发展到1995年,又建立了中国烟草东北农业试验站;前进到1998年,国家烟草专卖局又在东北站的基础上,设立了中国烟草进出口烟叶检测站,承担烟草转基因检测和烟草生物技术研究任务.2001年随着烟草行业教育体制改革,又设立了黑龙江省牡丹江烟草职业技术培训中心,承担黑龙江省乃至国家烟草行业的岗前教育和在职适应性教育及下岗培训等项任务.近几年各级主管部门授予了她许多光荣称号:国家局授予"技术创新先进集体"、"科技兴烟先进单位"、"烟叶转基因检测技术先进单位",省局先后授予"科技进步先进单位"、"二次创业先进单位"、"目标管理先进单位"、"五好领导班子"称号等;省爱卫会授予"省级卫生先进单位"、省档案局授予"省部级科技档案达标单位"、省教委授予"省级重点甲级达标学校"称号等等.

1997年的春天,由于因特网上以讹传讹,谎称中国种植转基因烟草已达100万公顷,使国际烟草商们,特别是欧美一些跨国烟草公司对中国烟叶草木皆兵,风声鹤唳,迫于消费者的压力,相继与我国终止了进口烟叶的合同,给中国烟草进出口造成了无法弥补的损失.而国内一家行业外检测机构对我国烟草种子的转基因检测由于方式方法的误差,阳性结果达70%多.