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7 干旱胁迫下生长调节剂对甘薯膨大期13C分配量与生理指标的通径系数

Table 7 Path coefficient between physiological indexes and 13C accumulation of sweet potato by growth regulators during expansion period under drought stress

作用因子 Action factor 直接效应 Direct action 间接效应 Indirect effect →Pn →Gs →Fv/Fm →PI abs →ABS/CSm →SS →SPS →ADPGase →ZR →ABA Pn 1.5730 0.1240 0.0031 -0.8223 0.0959 0.0603 0.0381 -0.6058 1.0433 -0.6749 Gs 0.3297 0.0279 0.0012 0.0177 0.0736 0.0556 0.0357 -0.1108 0.0516 0.3714 Fv/Fm 0.8119 0.0123 0.0328 -0.0138 -0.0319 -0.0042 -0.0064 0.0235 0.0086 -0.0834 PI abs 0.0303 0.0349 0.1922 0.0054 0.0677 0.0454 0.0272 -0.0782 0.0391 0.3159 ABS/CSm 0.1727 -0.0263 0.1404 -0.0022 -0.0119 0.0573 0.0328 -0.1000 0.0289 0.5702 SS 1.0762 0.0374 0.2405 -1.3207 0.1181 0.1299 0.0470 -0.1960 0.0473 0.5867 SPS 1.3484 -0.6372 0.2429 -1.9016 -0.2170 0.4171 0.0741 -0.1417 1.0473 0.5540 ADPGase 0.1439 0.0348 0.2540 -0.0019 0.0165 -0.1200 0.0742 0.0477 -0.0478 0.5519 ZR 1.1557 0.0368 0.3054 0.9018 -0.9130 -0.0894 0.0648 0.0411 -1.1234 0.4757 ABA 1.1986 -0.0352 -0.1917 0.0015 1.0150 -0.9542 -0.0700 -0.0920 0.1243 -0.0415