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3 打顶时期与留叶数对上部烟叶光合特性的影响

Table 3 Effects of topping period and remained leaf number on photosynthetic characteristics of upper tobacco leaves

处理 Treatment Pn [μmol/(m2·s)] Tr [mmol/(m2·s)] Gs [mol/(m2·s)] Ci (μmol/mol) T1 10.23±0.35a 3.91±0.11a 0.23±0.01a 254.93±1.97b T2 9.93±0.34a 3.83±0.39a 0.22±0.02ab 265.00±4.83b T3 8.50±0.15b 3.06±0.16b 0.18±0.01b 279.07±3.90a T4 10.03±0.12a 3.46±0.10ab 0.22±0.01ab 255.93±4.98b T5 9.70±0.25a 3.57±0.28ab 0.20±0.01ab 257.43±3.53b T6 8.55±0.34b 3.10±0.08b 0.18±0.01b 277.70±4.30a