烟草科技2019，Vol.52Issue(8)：30-36,7.
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
摘要
Abstract
In order to solve the imbalance of carbon-nitrogen metabolism and quality deterioration of dark sun-cured 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/hm2. 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/hm2 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Key words
Dark sun-cured tobacco/Nitrogen application rate/Carbon-nitrogen metabolism/Nitrate reductase/Glutamine synthetase/Sucrose invertase/Tobacco quality分类
农业科技引用本文复制引用
凡聪,赵兵飞,符云鹏,侯振武,王静,付全善..氮用量对蛟河晒红烟碳氮代谢关键酶活性及品质的影响[J].烟草科技,2019,52(8):30-36,7.基金项目
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). （JY2017-01）
