氮用量对蛟河晒红烟碳氮代谢关键酶活性及品质的影响  

Influences of nitrogen application rates on key enzyme activities of carbon-nitrogen metabolism and quality of dark sun-cured tobacco in Jiaohe

作　　者：凡聪 赵兵飞 符云鹏[1] 侯振武 王静[1] 付全善 FAN Cong;ZHAO Bingfei;FU Yunpeng;HOU Zhenwu;WANG Jing;FU Quanshan(College of Tobacco Science,Henan Agricultural University,Zhengzhou 450002,China;Jiaohe Agricultural Bureau of Jilin Province,Jiaohe 132500,Jilin,China;Jiaohe Tobacco Leaf Co.,Ltd.of Jilin Province,Jiaohe 132500,Jilin,China)

机构地区：[1]河南农业大学烟草学院,郑州市450002 [2]吉林省蛟河市农业局,吉林省蛟河市132500 [3]吉林省蛟河市烟叶有限公司,吉林省蛟河市132500

出　　处：《烟草科技》2019年第8期30-36,共7页Tobacco Science & Technology

基　　金：长春市烟草公司科技项目“蛟河市优质晒红烟和晒黄烟关键技术研究与应用”（JY2017-01）

摘　　要：为解决蛟河烟区晒红烟氮用量不合理导致的烟叶碳氮代谢失调、烟叶品质下降等问题,以晒红烟品种漂河1号为材料,研究了不同氮用量对蛟河晒红烟碳氮代谢关键酶活性及化学成分的影响。结果表明,增施氮肥能提高烟叶硝酸还原酶(NR)、谷氨酰胺合成酶(GS)和蔗糖转化酶(INV)活性及叶绿素和类胡萝卜素含量。随施氮量的增加,调制后的烟叶烟碱和总氮含量升高,糖含量下降;烟叶钾含量、香气质、香气量以及感官质量分值以施氮量为75.0~97.5kg/hm^2的处理最高。综合两年田间试验结果,在吉林蛟河较高肥力的暗棕壤上种植晒红烟,适宜的氮用量为75.0~97.5kg/hm^2。In order to solve the imbalance of carbon-nitrogen metabolism and quality deterioration of dark suncured tobacco leaves caused by inappropriate application of nitrogen fertilizer in Jiaohe tobacco-planting areas, the effects of different nitrogen rates on the key enzyme activities of carbon-nitrogen metabolism and quality of dark sun-cured tobacco(cv. Piaohe 1) were studied. The results showed that the activities of nitrate reductase, glutamine synthetase and sucrose invertase and the contents of chlorophyll and carotenoid in tobacco leaves were elevated by the increase of nitrogen application rate. With higher nitrogen application rates, the contents of nicotine and total nitrogen in cured leaves increased and sugar content decreased. The potassium content, aroma quality and quantity, and sensory quality score of tobacco leaves were the highest at the nitrogen application rate of 75.0-97.5 kg/hm^2. Based on the results of these two-year field experiments, the suitable nitrogen application rate for dark sun-cured tobacco was determined to be 75.0-97.5 kg/hm^2 in the dark brown soils with higher fertility in Jiaohe, Jilin Province.

关 键 词：晒红烟 氮用量 碳氮代谢 硝酸还原酶(NR) 谷氨酰胺合成酶(GS) 蔗糖转化酶(INV) 烟叶品质 

分 类 号：S572.01[农业科学—烟草工业]