外源物质对高温胁迫下烤烟上部叶光合及抗氧化能力的影响

曾嘉楠, 叶晓青, 蔡民爵, 周诚, 何澎, 陈壮壮, 陈雨峰, 曹良军, 陈建军, 王媛媛

Effects of Exogenous Substances on Photosynthesis and Antioxidant Capacity of Upper Leaves of Flue-Cured Tobacco under High Temperature Stress

Zeng Jianan, Ye Xiaoqing, Cai Minjue, Zhou Cheng, He Peng, Chen Zhuangzhuang, Chen Yufeng, Cao Liangjun, Chen Jianjun, Wang Yuanyuan

表2 不同外源物质对高温胁迫下烤烟B2F叶片化学成分的影响

Table 2 Effects of different exogenous substances on the chemical components of flue-cured tobacco leaves (B2F) under high temperature stress

处理 Treatment 总糖 Total sugar (%) 还原糖 Reducing sugar (%) 淀粉 Starch (%) 总氮 Total nitrogen (%) 烟碱 Nicotine (%) 氯 Chlorine (%) 两糖差 Difference (reducing-total sugar) 糖碱比 Sugar-nicotine ratio CK 19.22±0.54a 17.42±0.05a 1.29±0.04de 2.09±0.02f 2.93±0.03d 0.46±0.01fg 1.80±0.71de 6.56±0.29a HT 11.94±0.02e 9.34±0.06f 1.79±0.04b 2.32±0.02c 3.08±0.01ab 0.56±0.01cde 2.93±0.04abc 3.87±0.01g H2O 12.27±0.08e 9.65±0.03f 1.41±0.06cd 2.29±0.02c 3.03±0.01bc 0.62±0.01a 2.29±0.06cde 4.06±0.01fg SA 14.22±0.05c 11.86±0.03d 0.86±0.02g 2.22±0.03d 2.93±0.03d 0.59±0.01b 2.36±0.07cde 4.85±0.06d MT 14.23±0.09c 11.66±0.10d 1.22±0.03ef 2.11±0.01ef 2.96±0.03d 0.58±0.02bc 2.57±0.14cd 4.81±0.06d 6-BA 16.11±0.26b 13.42±0.05b 1.11±0.03f 2.07±0.01f 2.85±0.02e 0.55±0.01de 2.70±0.23bc 5.66±0.07b