Response of Carbon and Nitrogen Metabolism in Leaf Development Process of Different Sun-cured Tobacco Varieties to Fertilization Levels
Qiu Baoping
Kang Xueli
Guo Shiying
Shan Jiajie
Hou Zhenwu
Zhang Peng
Fu Yunpeng
Abstract：Field experiments were conducted to investigate the effects of different fertilization levels on the key enzymes activities and main products of carbon and nitrogen metabolism during leaves development of three sun-cured tobacco varieties in Northeast China .Result showed that the NR activities were the single peak curve during tobacco leaves development under different treatments ,the peak value was in the 27 d,and the sucrose invertase activities had decreasing trend .Under the same fertilization levels,the nitrogen metabo-lism was stronger and the content of total nitrogen and nicotine in the both varieties of Qinghuangye and Dabaihua , while the carbon metabolism was stronger and the content of total sugar was higher in Tobacco vari -ety Dayehuang .On the basis of traditional fertilization , properly decreasing fertilizer levels can effectively reg-ulate the intensity of sun -cured carbon and nitrogen metabolism and adjust the chemical composition of tobac-co, laying foundation for improving the quality of tobacco .
Keywords：Sun-cured tobaccoVarietyFertilizer levelCarbon and nitrogen metabolism
Publication Date：2015-03-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 63-67 )