喷施生长调节剂缓解甘薯干旱胁迫的机理

王金强,李思平,刘庆,李欢

Mechanism of Spraying Growth Regulators to Alleviate Drought Stress of Sweet Potato

JinQiang WANG,SiPing LI,Qing LIU,Huan LI

表4 干旱胁迫下喷施生长调节剂对甘薯叶片叶绿素荧光特性的影响

Table 4 Effects of spraying growth regulators on chlorophyll fluorescence characteristics of sweet potato leaves under drought stress

处理 Treatment Fv/Fm PI abs ABS/CSm ETo/CSm TRo/ABS CK 0.69±0.02a 2.32±0.16b 28784±1878a 9916±211ab 0.69±0.04a LD 0.55±0.04d 1.23±0.08d 20875±594c 5744±756d 0.56±0.05b LD+ABA 0.64±0.02b 2.03±0.06c 25412±1474b 8955±207b 0.70±0.04a LD+NAA 0.60±0.03c 1.94±0.08c 28684±488a 7854±688c 0.65±0.03a LD+6-BA 0.66±0.01b 2.90±0.16a 28312±910a 10750±717a 0.70±0.01a