打顶时期和留叶数对山东烤烟上部叶生长发育的影响

韩玉环, 刘晨, 杨龙, 于涛

Effects of Topping Period and Number of Remained Leaves on Growth and Development of Upper Leaves of Flue-Cured Tobacco in Shandong Province

Han Yuhuan, Liu Chen, Yang Long, Yu Tao

表6 打顶时期与留叶数对烤后上部烟叶化学成分含量的影响

Table 6 Effects of topping period and remained leaf number on chemical component of upper tobacco leaves

处理Treatment 烟碱Nicotine (%) 还原糖Reducing sugar (%) 总糖Total sugar (%) 糖碱比Sugar/alkaloid 两糖比Reducing sugar/total sugar T1 3.00±0.12a 28.24±0.58b 34.48±0.33a 9.44±0.17b 0.82±0.01b T2 2.79±0.05b 30.98±1.00a 34.64±0.38a 11.11±0.35a 0.89±0.02a T3 2.59±0.04c 30.54±0.50a 33.87±0.41ab 11.82±0.37a 0.90±0.02a T4 2.87±0.05ab 28.05±0.58b 31.80±0.29c 9.78±0.14b 0.88±0.01a T5 2.60±0.04c 29.20±0.41ab 32.83±0.29bc 11.25±0.28a 0.89±0.01a T6 2.43±0.03c 27.69±0.58b 33.42±0.79ab 11.41±0.26a 0.83±0.01b